Bibliografie tematiche / Control of larvae

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Letteratura scientifica selezionata sul tema "Control of larvae"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 17 febbraio 2022

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Articoli di riviste sul tema "Control of larvae"

1

Chen, Shicheng, Michael G. Kaufman, Michelle L. Korir e Edward D. Walker. "Ingestibility, Digestibility, and Engineered Biological Control Potential of Flavobacteriumhibernum, Isolated from Larval Mosquito Habitats". Applied and Environmental Microbiology 80, n. 3 (2 dicembre 2013): 1150–58. http://dx.doi.org/10.1128/aem.03319-13.

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ABSTRACTFlavobacteriumhibernum, isolated from larval habitats of the eastern tree hole mosquito,A. triseriatus, remained suspended in the larval feeding zone much longer (8 days) than other bacteria. Autofluorescent protein markers were developed for the labeling ofF. hibernumwith a strong flavobacterial expression system. Green fluorescent protein (GFP)-taggedF. hibernumcells were quickly consumed by larval mosquitoes at an ingestion rate of 9.5 × 104/larva/h. The ingestedF. hibernumcells were observed mostly in the foregut and midgut and rarely in the hindgut, suggesting that cells were digested and did not pass the gut viably. The NanoLuc luciferase reporter system was validated for quantitative larval ingestion rate and bacterial fate analyses. Larvae digested 1.87 × 105cells/larva/h, and fewF. hibernumcells were excreted intact. Expression of the GFP::Cry11A fusion protein with the P20 chaperone protein fromBacillus thuringiensisH-14 was successfully achieved inF. hibernum. Whole-cell bioassays of recombinantF. hibernumexhibited high larvicidal activity againstA. triseriatusin microplates and in microcosms simulating tree holes.F. hibernumcells persisted in microcosms at 100, 59, 30, and 10% of the initial densities at days 1, 2, 3, and 6, respectively, when larvae were absent, while larvae consumed nearly all of theF. hibernumcells within 3 days of their addition to microcosms.
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Nazaire Aïzoun. "Anopheles gambiae s. l. larval control: An important method for malaria control". World Journal of Biology Pharmacy and Health Sciences 6, n. 3 (30 giugno 2021): 027–34. http://dx.doi.org/10.30574/wjbphs.2021.6.3.0043.

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The current study aimed to investigate on the control tools against larvae and adults of Anopheles gambiae s. l. and then explore the detoxification enzymes mechanisms conferring permethrin tolerance in Anopheles gambiae s. l. larvae in Benin. Larvae and pupae were collected from March to July and August to November 2018 during the rainy season in Bopa district in Mono department in south-western Benin, West Africa. Larval bioassays were performed on these collected Anopheles gambiae s. l. larvae using permethrin as larvicide and synergist piperonyl butoxide (PBO) as enzyme inhibitor or synergist. WHO susceptibility tests were also conducted on adult unfed female mosquitoes aged 3-5 days old with impregnated papers of permethrin (0.75%). The results showed that malaria elimination in Benin needs integrated control. Both larvae or pupae and adults malaria vectors must be controlled.
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3

Tyrrell, Jordan J., Jackson T. Wilbourne, Alisa A. Omelchenko, Jin Yoon e Lina Ni. "Ionotropic Receptor-dependent cool cells control the transition of temperature preference in Drosophila larvae". PLOS Genetics 17, n. 4 (7 aprile 2021): e1009499. http://dx.doi.org/10.1371/journal.pgen.1009499.

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Temperature sensation guides animals to avoid temperature extremes and to seek their optimal temperatures. The larval stage of Drosophila development has a dramatic effect on temperature preference. While early-stage Drosophila larvae pursue a warm temperature, late-stage larvae seek a significantly lower temperature. Previous studies suggest that this transition depends on multiple rhodopsins at the late larval stage. Here, we show that early-stage larvae, in which dorsal organ cool cells (DOCCs) are functionally blocked, exhibit similar cool preference to that of wild type late-stage larvae. The molecular thermoreceptors in DOCCs are formed by three members of the Ionotropic Receptor (IR) family, IR21a, IR93a, and IR25a. Early-stage larvae of each Ir mutant pursue a cool temperature, similar to that of wild type late-stage larvae. At the late larval stage, DOCCs express decreased IR proteins and exhibit reduced cool responses. Importantly, late-stage larvae that overexpress IR21a, IR93a, and IR25a in DOCCs exhibit similar warm preference to that of wild type early-stage larvae. These data suggest that IR21a, IR93a, and IR25a in DOCCs navigate early-stage larvae to avoid cool temperatures and the reduction of these IR proteins in DOCCs results in animals remaining in cool regions during the late larval stage. Together with previous studies, we conclude that multiple temperature-sensing systems are regulated for the transition of temperature preference in fruit fly larvae.
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Taira, K., V. Šnábel, N. Okada e Y. Saitoh. "Effect of low temperatures on the infectivity of Toxocara cati larvae parasitized in mouse tissues". Helminthologia 50, n. 2 (1 giugno 2013): 83–86. http://dx.doi.org/10.2478/s11687-013-0112-8.

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Abstract (sommario):
AbstractThe infectivity of Toxocara cati larvae in mouse tissues, following storage at 4 °C and −25 °C, was measured using a bioassay in mice. Tissues of donor mice infected with 30-day-old T. cati larvae were stored at 4 °C for 7 and 14 days, and at −25 °C for 24 hours, then tissue larvae were inoculated into recipient mice (n = 6/group). After 15 days, larval burden in recipient mice was assessed by digestion. In the control group, a mean of 42.0 % of the inoculated larvae were established in mice. Storage of tissues at 4 °C for 7 and 14 days did not affect larval infectivity; means of 43.5 % and 37.4 % of inoculated larvae, respectively, were established in mice. Larvae exposed to −25 °C for 24 hours did not establish in mice, except for one larva recovered from a single mouse. These results may support the potential of tissue larvae in livestock animals as a causative agent of human toxocarosis.
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Hansen, J. D., M. A. Watkins, M. L. Heidt e P. A. Anderson. "Cold Storage to Control Codling Moth Larvae in Fresh Apples". HortTechnology 17, n. 2 (aprile 2007): 195–98. http://dx.doi.org/10.21273/horttech.17.2.195.

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Codling moth [Cydia pomonella (Lepidoptera: Tortricidae)], found in exported apples (Malus sylvestris), can disrupt international markets. Cold storage at 1.1 °C was examined for possible control of three physiological larval states in ‘Fuji’ apples: diapausing (overwintering), diapause-destined, and nondiapausing. All nondiapausing larvae were dead within 12 weeks, diapaused-destined larvae were controlled by the seventh week, yet more than half of the original populations of diapausing larvae were still alive after 11 weeks. Because the diapaused-destined larvae were younger than the nondiapausing larvae, they may have been more susceptible to cold. Because larvae normally diapause outside the fruit, cold storage would not be applicable for controlling larvae in this state.
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Khatun, Mousumi, Mohammad Mahir Uddin, Md Azizul Haque e Mohammad Saidur Rhaman. "Feeding, growth and chemical control of hog-plum beetle (Podontia 14- punctata)". Research in Agriculture Livestock and Fisheries 3, n. 3 (18 dicembre 2016): 387–94. http://dx.doi.org/10.3329/ralf.v3i3.30729.

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Experiments were conducted to study the feeding, growth and chemical control of hog-plum beetle (Podontia 14-punctata) in the laboratory and in the field. It was found that larval leaf consumption gradually increased with the increase of age of larva. Mean leaf consumption per larva was 0.28g, 0.86g and 1.70g after 24, 72 and 144 hrs, respectively. Growth pattern of larva was depended on the rate of leaf consumption. The average body weight of larvae was increased with time and per larva was recorded as 0.06g, 0.19g and 0.45g after 24, 72 and 144 hrs of leaf consumption. Daily leaf consumption was higher in adults than larvae. Mean leaf consumption per adult was 0.24g, 0.91g and 1.87g after 24, 72 and 144 hrs, respectively. Mortality of larvae and adults against four chemical insecticides viz. Altima 40WG, Belt 24WG, Libsen 45SC and Limper 10EC were observed both in the laboratory and field. All the treatments had a significant effect on mortality percentage of larva and adult in comparison to control. The highest mortality percentage of the larva (86.67) and adult (80.00) were observed in the case of Limper 10EC at 72 hrs after spraying. However, there was no significant difference observed in efficacy among Limper 10EC, Belt 24WG and Libsen 45SC. In field, percentage of leaf protection over control after 1st spray was the highest (37.95) in Limper 10EC and the lowest (20.86) in Altima 40WG treated plants. The results of laboratory and field trials revealed that Limper 10EC might be recommended for effective control of P. 14-punctata.Res. Agric., Livest. Fish.3(3): 387-394, December 2016
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Dantas, José Oliveira, Talita Guimarães Araújo-Piovezan, Danielle Pereira Santos, Agripino Emanuel Oliveira Alves, Sarita Socorro Campos Pinheiro e Genésio Tâmara Ribeiro. "Extracts of Potential Plants in the Control of the Aedes aegypti Population". Ensaios e Ciência: Ciências Biológicas, Agrárias e da Saúde 23, n. 2 (9 dicembre 2019): 104. http://dx.doi.org/10.17921/1415-6938.2019v23n2p104-108.

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Abstract The dengue fever is a febrile illness transmitted by mosquitoes Aedes aegypti to humans. The control of dengue dissemination is a hard challenge since the human population is presenting a considerably increase. Brazilian plants are known to control mosquitoes larvae due to their insecticides properties. This work had the objective to evaluate the success of plants extracts on the Aedes aegypti population. It was hypothesized that the studied plant extracts influence the population size of Aedes aegypti. It was hoped that at least one of these extracts is 100% efficient on the mosquito larvae combat, thus contributing to Brazilian Health Programs for the local Dengue eradication. Five plants extracts were studied against Aedes aegypti larvae populations under laboratory conditions. The plants were macerated and 4 concentrations for each plant were obtained using distillate water. Each concentration of each extract was tested on 10 Aedes larvae with 3 repetitions, for the experiment and positive and negative control on larvae were tested, using alcohol and mineral water, respectively. The count of dead larvae was daily done. The Ricinus communis L. extract was the best extract against Aedes aegypti, killing 100% of their larvae, followed by Mimosa Tenuiflora and Ipoema eriocalyx that achieved DL50 at a concentration of 20%. These results suggest the use of the Ricinus communis L. extract on the control of A. aegypti population in order to extinct the Dengue fever and to help the government healthy programs with this disease. Keywords: Mosquitoes larvae. Dengue Fever. Medicinal Plants. ResumoA Dengue é uma doença transmitida por mosquitos Aedes aegypti para humanos. Seu controle é uma tarefa árdua, uma vez que a população humana tem apresentado crescimento considerável. Entretanto, plantas brasileiras são indicadas para controle de larvas deste mosquito em função de suas propriedades inseticidas. Este trabalho objetivou avaliar o sucesso de extratos de plantas no controle da população de Aedes aegypti. Foi proposta a hipótese de que os extratos das plantas estudados influenciam no tamanho da população de Aedes aegypti. Esperou-se que pelo menos um destes extratos fosse 100% eficiente no combate às larvas de mosquito, de forma a contribuir para Programas de saúde que visam erradicação da Dengue. Cinco extratos de plantas foram estudados no controle do Aedes aegypti sob condições laboratoriais. As plantas foram maceradas e quatro concentrações foram obtidas de cada uma, utilizando água destilada. Cada concentração foi testada em dez larvas de Aedes com três repetições no experimento e se testou um controle positivo e negativo nas larvas, usando álcool e água destilada, respectivamente. A contagem de larvas mortas foi feita diariamente. O extrato da Ricinus communis L. foi o de maior sucesso no controle de Aedes aegypti, matando 100% das larvas, seguido da Mimosa Tenuiflora e Ipoema eriocalyx, que atingiram DL50 em uma concentração de 20%. O uso de extrato de Ricinus communis L é, portanto, a ferramenta mais indicada para o controle de A. aegypti, auxiliando potencialmente na erradicação da Dengue, e dando diretrizes para programas governamentais de saúde dos países com esta doença. Palavras-chave: Larvas de Mosquitos. Dengue. Plantas Medicinais.
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Makkiah, Makkiah, Cristina L. Salaki e Berty Assa. "Efektivitas Ekstrak Serai Wangi (Cimbopogon nardus L.) sebagai Larvasida Nyamuk Aedes aegypti (The Effectiveness of Citronella Extract (Cymbopogon nardus) as Larvaside of Aedes aegypti)". JURNAL BIOS LOGOS 10, n. 1 (30 dicembre 2019): 1. http://dx.doi.org/10.35799/jbl.10.1.2020.26920.

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Efektivitas Ekstrak Serai Wangi (Cimbopogon nardus L.) sebagai Larvasida Nyamuk Aedes aegypti (The Effectiveness of Citronella Extract (Cymbopogon nardus) as Larvaside of Aedes aegypti) Makkiah*), Cristina L Salaki **), Berty AssaProgram Studi Entomologi Pascasarjana Universitas Sam RatulangiManado, 95155*Email: khiaimoet@gmail.com,**Email korespondensi: christinasalaki@ymail.com (Article History: Received 20-10-2019; Revised 27-11-2019; Accepted 30-12-2019) Abstrak Pengendalian nyamuk sebagai vektor utama penularan penyakit DBD hanya dapat dilakukkan dengan cara memutuskan rantai penularannya melalui pengendalian nyamuk. Pengendalian nyamuk dapat dilakukan pada tahap larva dengan menggunakan biolarvasida yang terbuat dari bahan alami dan salah satunya adalah dengan menggunakan ekstrak kasar dari tanaman serai wangi (Cymbopogon nardus). Penelitian ini bertujuan untuk menguji efektivitas ekstrak serai wangi sebagai larvasida larva Aedes aegypti instar III dan IV. Penelitian ini adalah penelitian eksperimental menggunakan rancangan acak lengkap. Larva yang digunakan adalah larva instar III dan IV, dengan perlakuan konsentrasi ekstrak serai wangi 20%, 30%, 40%, dan 50% dalam 250 ml air. Pada penelitian ini terdapat kontrol yaitu aquades yang tidak ditambahkan larutan apapun. Pengamatan kematian larva dilakukan pada jam ke 1, 3, 6, 12, 24, dan jam ke 48 dengan replikasi sebanyak 4 kali. Data presentase mortalitas larva digunakan untuk menghitung nilai LC50 dan LT50 dengan menggunakan analisisi Probit. Hasil penelitian menunjukkan ekstrak serai wangi efektif dalam mematikan 50% dari populasi larva uji dengan nilai LC50 pada konsentrasi 36,48%serta waktu yang di butuhkan untuk mematikan 50% populasi larva uji adalah 10,45 jam. Kata kunci : Ekstrak, Cymbopogon nardus, larvasida, Aedes aegypti Abstract Control of mosquitoes as the main vector of transmission of DHF can only be done by breaking the chain of transmission through mosquito control. Mosquito control can be carried out at the larval stage by using biolarvasides made from natural materials, one of which is by using a crude extract from the citronella plant (Cymbopogon nardus). This research is to find out the effectiveness of citronella extract as larvae of Aedes aegypti larvae instar III and IV. This research is a pure experimental study using a complete random design. The larvae used were instar larvae III and IV, with the treatment of citronella extract concentration of 20%, 30%, 40%, and 50% in 250 ml of water. In this study, there was a control i.e. aquades which did not add any solution. Observation of larvae death was done at 1 hour, 2 hours. 4 hours, 12 hours, 24 hours and 28 hours with replication 4 times. Data on larval mortality were used to calculate LC50 and LT 50 values using Probit regression analysis. The results showed that citronella extract was effective in killing 50% of the population of test larvae with LC50 values at a concentration of 36.48% and the time needed to kill 50% of the population of test larvae was 10,450 hours.Key words: Extract, Cymbopogon nardus, larvasida, Aedes aegypti
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Duan, Jian J., Leah S. Bauer, Roy Van Driesche, Jonathan M. Schmude, Toby Petrice, Jennifer L. Chandler e Joe Elkinton. "Effects of Extreme Low Winter Temperatures on the Overwintering Survival of the Introduced Larval Parasitoids Spathius galinae and Tetrastichus planipennisi: Implications for Biological Control of Emerald Ash Borer in North America". Journal of Economic Entomology 113, n. 3 (4 aprile 2020): 1145–51. http://dx.doi.org/10.1093/jee/toaa048.

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Abstract Climate change has been linked to shifts in the distribution and phenology of species although little is known about the potential effects that extreme low winter temperatures may have on insect host–parasitoid interactions. In late January 2019, northern regions of the United States experienced a severe cold wave caused by a weakened jet stream, destabilizing the Arctic polar vortex. Approximately 3 mo later at six study sites in southern Michigan and three in southern Connecticut, we sampled the overwintering larvae of the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), and two larval parasitoids, Spathius galinae (Hymenoptera: Braconidae) and Tetrastichus planipennisi (Hymenoptera: Eulophidae), that are being introduced as emerald ash borer biocontrol agents in North America. At these nine study sites, emerald ash borer-infested ash trees and/or saplings were debarked and each overwintering emerald ash borer and parasitoid larva was then examined for cold-induced mortality, as indicated by a brown coloration, flaccid, and watery consistency. In early spring in Michigan, we found 4.5–26% of emerald ash borer larvae, 18–50% of S. galinae larvae, and 8–35% of T. planipennisi larvae were killed by cold. In Connecticut where temperatures were more moderate than in Michigan during the 2019 cold wave, <2% of the larval hosts and parasitoids died from cold injury. Our findings revealed that cold-induced mortality of overwintering larvae of emerald ash borer and its larval parasitoids varied by location and species, with higher mortality of parasitoid larvae in most Michigan sites compared to host larvae. The potential impacts of our findings on the management of emerald ash borer using biocontrol are discussed.
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Pronier, I., J. Paré, J.-C. Wissocq e C. Vincent. "Nucleopolyhedrovirus infection in obliquebanded leafroller (Lepidoptera: Tortricidae)". Canadian Entomologist 134, n. 3 (giugno 2002): 303–9. http://dx.doi.org/10.4039/ent134303-3.

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AbstractA virus isolated from obliquebanded leafroller, Choristoneura rosaceana (Harris), larvae collected in an apple, Malus domestica Borkh. (Rosaceae), orchard of Saint-Joseph-du-Lac (Quebec, Canada) was studied. Microscopic studies revealed that it was a uninucleocapsid nucleopolyhedrovirus from the family Baculoviridae. Larval mortality was approximately 75% (0% mortality in control group) in larvae infected as third instars immersed in a suspension of 1.7 × 108 occlusion bodies/mL. The average time for larval mortality was 23 ± 3 d after treatment. The majority (95.5%) of infected larvae died as fifth or sixth instars. Infection was observed primarily in fat body cells, and occasionally in the tracheal matrix and epidermis. Mean larval development time of infected larvae surviving to pupae was 20 ± 3 d, significantly greater than the 18 ± 3 d observed in control larvae. Adult emergence was significantly lower in pupae of treated larvae (73.6%) than in the control group (93.5%). Our work constitutes the first baseline study of naturally occurring virus of the obliquebanded leafroller.
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Tesi sul tema "Control of larvae"

1

Greenfield, Bethany Patricia Jane. "Metarhizium pathogenesis of mosquito larvae". Thesis, Swansea University, 2014. https://cronfa.swan.ac.uk/Record/cronfa42819.

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Timmins, William Andrew. "Control of feeding in Manduca sexta larvae". Thesis, University of Bath, 1988. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380387.

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Rethwisch, Michael D., e S. Sherwood Winans. "Control of Liriomyza trifolii Larvae in Head Lettuce". College of Agriculture, University of Arizona (Tucson, AZ), 1989. http://hdl.handle.net/10150/214282.

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Theron, Dirk Leopold. "The biological control of malaria mosquito larvae using smaller indigenous freshwater fish species". Thesis, University of Limpopo, 1987. http://hdl.handle.net/10386/2611.

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Palumbo, John C. "Management of Lepidopterous Larvae Under Experimental, Biorational and Conventional Control Programs in Lettuce". College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/221643.

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A large block experiment was conducted at the Yuma Ag Center to compare the field performance of three lettuce management programs for control of lepidopterous larvae. Conventional, experimental and biorational insecticides were sprayed to control beet armyworm, cabbage looper and Heliothis species throughout the growing season. Differences in populations of total larvae among the four treatments, relative to insecticide treatments and timing of application were observed throughout the season. In general, the standard and experimental treatments provided the most consistent control of lepidopterous larvae following each application. Harvest data showed that the spray regimes had a significant influence of head lettuce yield or quality. Maturity and quality were significantly reduced in the untreated control. An economic analysis shows that net returns varied widely among the management programs at different market prices. In conclusion, this study provides preliminary data to support the need for more development of experimental and biorational insecticide products as alternatives to conventional management programs in desert lettuce production.
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Autran, Lyris. "Feeding preferences of Chaoborus americanus larvae (Diptera:Chaoboridae) and their potential effect on mosquito populations". Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33376.

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Chaoborus americanus larvae were used in laboratory experiments to assess their efficiency at decreasing mosquito larval populations. Third and fourth instar Chaoborus americanus larvae were independently fed assemblages of single prey species to test hunger and several prey species to test preference. Prey species included Daphnia and the four Aedes aegypti larval instars. The results show that Chaoborus americanus larvae will choose early instar mosquito larvae over Daphnia, however, this preference decreases as the mosquito larvae become older. Third instar Chaoborus americanus larvae will choose first instar mosquito larvae over Daphnia 76% of the time, whereas they will select third instar mosquito larvae only 30% of the time. Fourth instar Chaoborus americanus larvae will choose first instar mosquito larvae 94% of the time, and select fourth instar mosquito larvae only 3% of the time. Crowding also has an effect on feeding times; individual Chaoborus larvae take more time to ingest their prey items than do individuals within a group. Chaoborus americanus larvae are good biological control agents within a laboratory setting.
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Halwani, Adla E. "Role of apolipophorin-III in the immediate antibacterial responses of Galleria mellonella larvae (Lepidoptera:Pyralidae)". Thesis, McGill University, 1999. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36602.

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Apolipophorin-III is a hemolymph protein known for its role in lipid transport. Apolipophorin-III isolated from the hemolymph of last instar larvae of Galleria mellonella bound to the surface of the insect pathogenic Gram-negative bacterium Xenorhabdus nematophilus and to the lipid A moiety of its lipopolysaccharide. This binding reduced the toxicity of the lipopolysaccharide to hemocytes and decreased the inhibitory effect of the lipopolysaccharide on phenoloxidase. Apolipophorin-III also bound to the Gram-positive bacterium Micrococcus lysodeikticus; this enhanced the activity of hen egg lysozyme on the organism as well as the lytic activity of G. mellonella cell-free hemolymph.
The involvement of apolipophorin-III in the immune responses of G. mellonella larvae to lipoteichoic acids, surface components of Gram-positive bacteria, was examined. Lipoteichoic acids from Bacillus subtilis, Enterococcus hirae and Streptococcus pyogenes caused a dose- and time-dependent drop in the total counts of circulating hemocytes and a partial or complete depletion of plasmatocytes depending on the species of lipoteichoic acid. All lipoteichoic acids tested activated phenoloxidase in vitro; however, in vivo, only B. subtilis lipoteichoic acid elevated the phenoloxidase activity while the other two suppressed it. Binding of apolipophorin-III to lipoteichoic acids was demonstrated. Apolipophorin-III prevented the complete depletion of plasmatocytes and depressed the activation of phenoloxidase by lipoteichoic acid from B. subtilis. The concentration of apolipophorin-III in hemolymph two hours post injections of lipopolysaccharides or lipoteichoic acids into larvae of G. mellonella did not change with respect to control insects that received phosphate-buffered saline. The concentration of apolipophorin-III in hemolymph at the end of the feeding larval stage was 8--12 mg/mL of hemolymph. Apolipophorin-III was present in significant amounts in the prepupal, pupal and adult stages. The protein was detected immunologically in hemocyte lysates, plasma and fat body. Non-denaturing polyacrylamide gels and immunoblots of fresh hemolymph suggested that apolipophorin-III is associated with a 77 kDa protein.
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Zhang, Yun [Verfasser]. "Augmin complex components control branching of sensory neuron dendrites in Drosophila larvae. / Yun Zhang". Bonn : Universitäts- und Landesbibliothek Bonn, 2016. http://d-nb.info/1107184355/34.

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Yu, Sanke. "Experimental Trichinellosis : control induced in CD-1 mice by different antigen preparations from L1 larvae". Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66243.

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10

Dongus, Stefan. "Urban agriculture and operational mosquito larvae control : mitigating malaria risk in Dar es Salaam, Tanzania /". [S.l.] : [s.n.], 2009. http://edoc.unibas.ch/diss/DissB_8749.

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Libri sul tema "Control of larvae"

1

Swink, William D. Comparison of mark retention and survival of sea lamprey larvae marked by pigment injection and tail clipping. Ann Arbor, Mich: Great Lakes Fishery Commission, 1995.

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2

Raquel, Paul F. Striped bass egg and larval monitoring near the proposed Montezuma Slough control structure, 1987. [California]: Interagency Ecological Study Program for the Sacramento-San Joaquin Estuary, 1988.

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3

West Nile virus targeted mosquito larval control program: 2005 grant program guidelines. Edmonton, Alta: Alberta Municipal Affairs, 2005.

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McKenney, Charles L. Influence of an insect growth regulator on larval development of a marine crustacean. Gulf Breeze, FL: U.S. Environmental Protection Agency, Environmental Research Laboratory, 1988.

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Gong shui xi tong hong chong fang zhi ji shu. Beijing: Zhongguo jian zhu gong ye chu ban she, 2008.

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6

West, Richard J. Ground spray applications of Virtuss, a nuclear polyhedrosis virus, against white-marked tussock moth larvae at Bottom Brook, Newfoundland in 1986. St. John's: Newfoundland Forestry Centre, 1987.

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Crease, Gary John. Studies of the biological efficacy of the pyrethroid insecticide cypermethrin applied to plant surfaces for the control of larvae of Spodoptera littoralis Boisd. Portsmouth: Portsmouth Polytechnic, School of Biological Sciences, 1987.

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Scholefield, Ronald J. A comparison of two methods for the simultaneous determination of TFM and Bayer 73 concentrations. Ann Arbor, Mich: Great Lakes Fishery Commission, 1987.

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Copeland, Lori. Out of control. South Yarmouth, Ma: Curley Pub., 1991.

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Connealy, Mary. Out of control. Waterville, Me: Thorndike Press, 2011.

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Più fonti

Capitoli di libri sul tema "Control of larvae"

1

Becker, Norbert, Dušan Petrić, Clive Boase, John Lane, Marija Zgomba, Christine Dahl e Achim Kaiser. "Key to Mosquito Fourth-Instar Larvae". In Mosquitoes and Their Control, 133–60. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4757-5897-9_9.

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Becker, Norbert, Dušan Petrić, Marija Zgomba, Clive Boase, Minoo Madon, Christine Dahl e Achim Kaiser. "Key to Mosquito Fourth Instar Larvae". In Mosquitoes and Their Control, 135–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-92874-4_8.

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Suarez-Bregua, Paula, Laura Cal, Pedro M. Guerreiro e Josep Rotllant. "Novel Aspects of Phosphate Endocrine Control: A Key Element for the Long-Term Sustainability of Finfish Aquaculture". In Emerging Issues in Fish Larvae Research, 253–73. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73244-2_9.

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Ueberschär, Bernd, Carmen Navarro-Guillén, Ana Gomes, Ivar Rønnestad, Carlos Rojas-Garcia, Inken Hanke, Dagh Sommerfeld e Robert Tillner. "Variability in Digestive Enzyme Capacity in Early Stages of Marine Fish Larvae: Ontogenetic Variations, Biorhythms, Hormonal Control and Nutrient Sensing Mechanisms". In Emerging Issues in Fish Larvae Research, 87–129. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73244-2_4.

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Barjac, Huguette. "Classification of Bacillus sphaericus Strains and Comparative Toxicity to Mosquito Larvae". In Bacterial Control of Mosquitoes & Black Flies, 228–36. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-5967-8_14.

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Sutherland, Donald J. "The Future of Bacterial Control of Mosquito and Black Fly Larvae". In Bacterial Control of Mosquitoes & Black Flies, 335–42. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-011-5967-8_22.

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Mayo, Z. B. "Field Evaluation of Insecticides for Control of Larvae of Corn Rootworms". In Springer Series in Experimental Entomology, 183–203. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4612-4868-2_10.

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Norma-Rashid, Y., e S. N. R. Saleeza. "Eco-friendly Control of Three Common Mosquito Larvae Species by Odonata Nymphs". In Basic and Applied Aspects of Biopesticides, 235–43. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-1877-7_13.

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Devillers, James, Annick Doucet-Panaye e Jean-Pierre Doucet. "SAR and QSAR Modeling of Structurally Diverse Juvenoids Active on Mosquito Larvae". In Computational Design of Chemicals for the Control of Mosquitoes and Their Diseases, 233–50. Boca Raton : CRC Press, [2018]: CRC Press, 2017. http://dx.doi.org/10.4324/9781315151656-9.

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Devillers, James, Annick Doucet-Panaye, Jean-Pierre Doucet, Armand Lattes, Hubert Matondo, Christophe Lagneau, Sébastien Estaran, Marie-Michelle Clémente e André Yébakima. "SAR Predictions of Benzoylphenylurea Chitin Synthesis Inhibitors Active on Larvae of Aedes aegypti". In Computational Design of Chemicals for the Control of Mosquitoes and Their Diseases, 251–96. Boca Raton : CRC Press, [2018]: CRC Press, 2017. http://dx.doi.org/10.4324/9781315151656-10.

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Atti di convegni sul tema "Control of larvae"

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Guo, Jiayu, Shasha Zhao, Mao Shu, Zhongguang Yan, Mingzhu Sun, Xin Zhao e Xizeng Feng. "Trajectory tracking of spasm-oriented zebrafish larvae". In 2014 33rd Chinese Control Conference (CCC). IEEE, 2014. http://dx.doi.org/10.1109/chicc.2014.6896128.

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Lin, Weiyang, An Zhang, Jie Zhong, Xinghu Yu e Mingsi Tong. "Adaptive sliding mode control of three-dimensional rotation of zebrafish larvae". In 2017 32nd Youth Academic Annual Conference of Chinese Association of Automation (YAC). IEEE, 2017. http://dx.doi.org/10.1109/yac.2017.7967543.

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Zhang, Weize, Xianke Dong e Xinyu Liu. "Switched fuzzy-PD control of contact forces in robotic micromanipulation of Drosophila larvae". In 2015 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2015. http://dx.doi.org/10.1109/icra.2015.7139770.

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Kner, Peter, Yang Liu, Aqsa Malik, Keelan Lawrence, Chelsea E. Gunderson, Rebecca Ball e James D. Lauderdale. "Imaging neural activity in zebrafish larvae with adaptive optics and structured illumination light sheet microscopy". In Adaptive Optics and Wavefront Control for Biological Systems V, a cura di Thomas G. Bifano, Sylvain Gigan e Na Ji. SPIE, 2019. http://dx.doi.org/10.1117/12.2507048.

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Toepfer, Stefan. "Optimizing the use of entomopathogenic nematodes for a better control of corn rootworm larvae". In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.93333.

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Raharjo, Mursid, Agus Subagyo e Sulistiyi. "Nanoparticle of Silver Nitrate (Ag2NO3) and Organophosphate (C10H19O6PS2) for Vector Control of Anopheles Larvae". In 2nd Sriwijaya International Conference of Public Health (SICPH 2019). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/ahsr.k.200612.002.

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7

Rodríguez-González, Á., V. Suárez Villanueva, S. Mayo, G. Carro-Huerga, Ó. González-López, S. Gutiérrez, H. Peláez e PA Casquero. "Control of Xylotrechus arvicola (Coleoptera: Cerambycidae) larvae population by inoculating Trichoderma spp. in vine wood". In GA 2017 – Book of Abstracts. Georg Thieme Verlag KG, 2017. http://dx.doi.org/10.1055/s-0037-1608459.

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Zavtoni, Pantelimon, e Ion Zavtoni. "Activitatea biologica a tulpinilor autohtone de Bacillus Thuringiensis in combaterea gândacului din colorado". In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.25.

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Entomopathogenic bacterial biopreparations have an important role in controlling harmful insects in agriculture, giving the possibility not to use dangerous pesticides and environmental pollution to minimize soil degradation; beneficial bacteria turn plant residues into organic fertilizers. In the control, the development of larvae increased from 109 to 221 larvae. And in the variant Bacillus thuringiensis 107 before processing there were 141, 6 larvae and after processing it dropped to 80, 6 larvae.
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MELO, L. F. A., A. M. CABRAL, A. C. A. MELO, M. A. V. MELO-SANTOS, L. FINKLER e C. L. LUNA-FINKLER. "CULTIVATION OF Bacillus thuringiensis var. israelensis H14 IN BIOREACTOR FOR BIOLOGICAL CONTROL OF Aedes aegypti LARVAE". In XXII Congresso Brasileiro de Engenharia Química. São Paulo: Editora Blucher, 2018. http://dx.doi.org/10.5151/cobeq2018-pt.0577.

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10

Figueredo, Weslley Kelson Ribeiro, Isabella Chaves Sousa, João Otávio Bandeira Diniz, Aristófanes Corrêa Silva, Anselmo Cardoso De Paiva e Livio Martins Costa-Junior. "Image-based automatic counting of spotted fever-carrying tick larvae in vitro". In XV Workshop de Visão Computacional. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/wvc.2019.7638.

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Abstract (sommario):
Spotted fever or tick fever, a disease transmitted by ticks, has a high case-fatality rate when a treatment is not started early. To reduce the cases of tick fever, many acaricides are used for keeping control of tick population. However, these tests are done manually. To choose the most effective acaricide, a specialist has to count how many ticks are dead and how many are still alive after subjecting them to it. This test is time-consuming, so this work aims to automate this procedure. Therefore, it is proposed a computational methodology to automate this procedure through image processing. Through the proposed method, 99,14% of ticks larvae were found, and 99.34% of alive and 96.89% of dead ticks larvae were counted correctly in this work.
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Rapporti di organizzazioni sul tema "Control of larvae"

1

Nathan, Harms, e Cronin James. Variability in weed biological control : effects of foliar nitrogen on larval development and dispersal of the alligatorweed flea beetle, Agasicles hygrophila. Engineer Research and Development Center (U.S.), settembre 2021. http://dx.doi.org/10.21079/11681/41886.

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Host quality can have dramatic effects on performance of biological control agents but its importance is understudied. We used a combination of field measurements and laboratory experiments to determine the range of foliar nitrogen (FN) that larvae of the alligatorweed flea beetle (Agasicles hygrophila) are exposed to in the field and its importance to larval development and dispersal. Seasonal variability in FN was assessed at field sites spanning southern to northern Louisiana every 2–3 weeks during the growing season for four years. In a series of laboratory experiments, alligatorweed FN was manipulated to examine its influence on larval development and survival (under different temperature regimes), adult biomass, and dispersal of the biological control agent, A. hygrophila. Foliar nitrogen and rearing temperature had strong independent effects on larval development rate. We demonstrated that increasing nitrogen in leaf tissues shortens larval A. hygrophila developmental time and increases survival to adulthood, regardless of exposure temperature during development. It also suggests that foliar nitrogen may have important effects on biological control of alligatorweed, particularly as a result of seasonal variation in temperature and plant nutrition at field sites and could contribute to observed variation in A. hygrophila efficacy in the field.
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Gölles, Markus, Viktor Unterberger, Valentin Kaisermayer, Thomas Nigitz e Daniel Muschick. Supervisory control of large-scale solar thermal systems. IEA SHC Task 55, gennaio 2021. http://dx.doi.org/10.18777/ieashc-task55-2021-0001.

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Abstract (sommario):
Overview on different approaches for supervisory control strategies, deciding on operating modes and set points for the controls of the different plants and components integrated in solar thermal systems.
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3

Meirovitch, Leonard. Control of Large-Order Space Structures. Fort Belvoir, VA: Defense Technical Information Center, dicembre 1987. http://dx.doi.org/10.21236/ada214012.

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Vatsala, A. S., e G. S. Ladde. Large Scale Dynamical and Control System. Fort Belvoir, VA: Defense Technical Information Center, novembre 1986. http://dx.doi.org/10.21236/ada175684.

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Kosut, robert L. Adaptive Control Techniques for Large Space Structures. Fort Belvoir, VA: Defense Technical Information Center, dicembre 1987. http://dx.doi.org/10.21236/ada200208.

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Fennell, Robert, e J. A. Reneke. Control Coordination of Large Scale Hereditary Systems. Fort Belvoir, VA: Defense Technical Information Center, luglio 1985. http://dx.doi.org/10.21236/ada172736.

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Kosut, Robert L., e Michael G. Lyons. Adaptive Control Techniques for Large Space Structures. Fort Belvoir, VA: Defense Technical Information Center, ottobre 1985. http://dx.doi.org/10.21236/ada164240.

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Gölles, Markus, e Viktor Unterberger. Control of large scale solar thermal plants. IEA SHC Task 55, gennaio 2021. http://dx.doi.org/10.18777/ieashc-task55-2021-0003.

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Abstract (sommario):
Overview on the control of large-scale thermal plants, limited to plants feeding into DH networks as well as their key components, i.e. the actual collector circuit and the heat exchanger between primary and secondary circuit.
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Packard, Andrew, e John C. Doyle. Robust Control of Multivariable and Large Scale Systems. Fort Belvoir, VA: Defense Technical Information Center, marzo 1988. http://dx.doi.org/10.21236/ada194250.

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Doyle, J. D., e T. B. Cunningham. Robust Control of Multivariable and Large Space Systems. Fort Belvoir, VA: Defense Technical Information Center, marzo 1985. http://dx.doi.org/10.21236/ada155117.

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