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Letteratura scientifica selezionata sul tema "Diamond-back moth Control"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 31 gennaio 2023

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Articoli di riviste sul tema "Diamond-back moth Control"

Stansly, Philip A., e Barry Kostyk. "Control of Diamond Back Moth on Broccoli with Labeled and Experimental Insecticides, 2014". Arthropod Management Tests 40, n. 1 (dicembre 2015): E52. http://dx.doi.org/10.1093/amt/tsv108.

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Selvaraj, C., J. S. Kennedy e M. Suganthy. "Larvicidal action of Nux-vomica (Strychnus nux-vomica L.) against Diamond back moth (Plutella xylostella L.)". Journal of Applied and Natural Science 9, n. 4 (1 dicembre 2017): 2291–99. http://dx.doi.org/10.31018/jans.v9i4.1526.

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Abstract (sommario):

The present investigation reports on larvicidal efficacy of plant extracts of Nux-vomica, Strychnus nux-vomica against Diamond back moth (DBM). In this investigation shade dried and powdered nux-vomica plant sam-ples (leaves, root bark, stem bark, seed and fruit rind) were extracted with organic solvents ethanol, methanol, ace-tone, hexane and chloroform and also formulated as Emulsifiable Concentrates (EC) using surfactant and solvents. This formulated plant extracts were tested against third instar larvae of DBM for larvicidal efficacy using leaf disc bioassay method under laboratory condition. Among the five solvent extracts tested, hexane extracts of root bark 11.11 EC @ 2 % showed highest larval mortality of 76.66 % followed by seed 14.25 EC, leaf 16.66 EC, stem bark 12.50 EC and fruit rind 12.50 EC extracts exhibited maximum mortality @ 2 % concentration recording 66.66, 63.33, 56.66 and 40.00 per cent mortality respectively. Positive and negative control such as respective solvent and water showed 10.00 and 3.33 % larval mortality respectively. The results of these experiment clearly indicate that nux-vomica plant possess promising larvicidal action against diamond back moth.

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Bhattarai, A. M., e S. Tiwari. "Effects of Different Bio-Rational Compounds on Mortality of Diamond Back Moth (Plutella xylostella L.) Larva under Laboratory Condition". Journal of Agriculture and Environment 22 (30 giugno 2021): 31–40. http://dx.doi.org/10.3126/aej.v22i0.46783.

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A leaf dip technique of bioassay for mortality of DBM larvae was conducted in laboratory condition with room temperature of 25±2°C, relative humidity of 80±3% and 13:11 ratio of Light: dark period at Department of Entomology, Agriculture and Forestry University, Rampur, Chitwan with three replication and eight treatments; i.e. i) Lipel (Bacillus thuriengiensis var. kursataki) 2gm/l, ii) Racer (Beauveria bassiana 1.15% WP) 2gm/l, iii) Derisom (Fractions of Derris indica) 2ml/l, iv) Anosom (Extracts of Annona spp. 1%) 2ml/l, v) Neemix (Neem oil 60% w/w, Azadiractin content less than 300 ppm) 2ml/l, vi) Anthsuper (Chloropyrifos 16% A.I. + Alphacypermethrin 1%EC (w/w) 2ml/l, vii) cow urine (1:5 with water) and viii) control (water spray) in Completely Randomized Design (CRD). The larval mortality was taken after 3, 9, 21, 33, 57 and 93 hours after the treatment application. The larval mortality was found to be significantly higher in Anthsuper treated with 100% mortality of larvae within 33 hours after treatment application followed by cow urine, botanicals (Neemix, Derisom and Anosom) and microbials (Racer and Lipel) where the larval mortality over control was found to ranging from 10% to 47.57% during the experimental period. The larval mortality was 47.57% for Cow urine and Neemix followed by 38.14% for Anosom, 33.29% for Racer, 28.57% for Derisom and 19% for Lipel.it is concluded that chemical pesticide Anthsuper is superior for immediate control of the pest but considering the safety of environment and human health; for long-term control of the pest botanicals and microbials would be more efficient.

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Matyjaszczyk, Ewa, Joanna Sobczak e Magdalena Szulc. "Is the possibility of replacing seed dressings containing neonicotinoids with other means of protection viable in major Polish agricultural crops?" Journal of Plant Protection Research 55, n. 4 (1 dicembre 2015): 329–35. http://dx.doi.org/10.1515/jppr-2015-0056.

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Abstract Following the limitations regarding the use of the neonicotinoids: clothianidin, thiamethoxam and imidacloprid there are no currently available insecticide seed dressings for oilseed rape in Poland. For maize here is only one seed dressing containing methiocarb available with a very narrow registered scope of use. The impact of limitations on protection possibilities of other major Polish agricultural crops is either negligible or non-existent. In consequence a group of economically important insect pests of maize [dungbeetles (Melolonthidae); click beetles (Elateridae); noctuid moths (Agrotinae)] and oilseed rape [leaf miners (Agromyzidae), turnip sawfly (Athalia colibri Christ.), cabbage weevils (Curculionidae), cabbage root fly (Hylemyia brassicae Bche.), diamond-back moth (Plutella maculipennis Curt.)] is left without any legal possibility of chemical control. For the other important pests of the early growth stage of oilseed rape development, there are only pyrethroids available together with one product containing chloropiryfos that can be applied once per vegetation season. Since both maize and oilseed rape are grown in Poland on the area of approximately 1 million ha (each crop), this situation raises concerns about production possibilities as well as development of pest resistance.

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Bilal, Muhammad, Muhammad Umair Sial, Lidong Cao e Qiliang Huang. "Effects of Methoxyfenozide-Loaded Fluorescent Mesoporous Silica Nanoparticles on Plutella xylostella (L.) (Lepidoptera: Plutellidae) Mortality and Detoxification Enzyme Levels Activities". International Journal of Molecular Sciences 23, n. 10 (21 maggio 2022): 5790. http://dx.doi.org/10.3390/ijms23105790.

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Abstract (sommario):

The diamond back moth, Plutella xylostella, causes severe damage at all crop stages, beside its rising resistance to all insecticides. The objective of this study was to look for a new control strategy such as application of insecticide-loaded carbon dot-embedded fluorescent mesoporous silica nanoparticles (FL-SiO2 NPs). Two different-sized methoxyfenozide-loaded nanoparticles (Me@FL-SiO2 NPs-70 nm, Me@FL-SiO2 NPs-150 nm) were prepared, with loading content 15% and 16%. Methoxyfenozide was released constantly from Me@FL-SiO2 NPs only at specific optimum pH 7.5. The release of methoxyfenozide from Me@FL-SiO2 NPs was not observed other than this optimum pH, and therefore, we checked and controlled a single release condition to look out for the different particle sizes of insecticide-loaded NPs. This pH-responsive release pattern can find potential application in sustainable plant protection. Moreover, the lethal concentration of the LC50 value was 24 mg/L for methoxyfenozide (TC), 14 mg/L for Me@FL-SiO2 NPs-70 nm, and 15 mg/L for Me@FL-SiO2 NPs-150 nm after 72 h exposure, respectively. After calculating the LC50, the results predicted that Me@FL-SiO2 NPs-70 nm and Me@FL-SiO2 NPs-150 nm exhibited better insecticidal activity against P. xylostella than methoxyfenozide under the same concentrations of active ingredient applied. Moreover, the activities of detoxification enzymes of P. xylostella were suppressed by treatment with insecticide-loaded NPs, which showed that NPs could also be involved in reduction of enzymes. Furthermore, the entering of FL-SiO2 NPs into the midgut of P. xylostella was confirmed by confocal laser scanning microscope (CLSM). For comparison, P. xylostella under treatment with water as control was also observed under CLSM. The control exhibited no fluorescent signal, while the larvae treated with FL-SiO2 NPs showed strong fluorescence under a laser excitation wavelength of 448 nm. The reduced enzyme activities as well as higher cuticular penetration in insects indicate that the nano-based delivery system of insecticide could be potentially applied in insecticide resistance management.

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ADHIKARY, S. "Results of field trials to control the diamond-back moth, Plutella xylostella L., by application of crude methanolic extracts and aqueous suspensions of seed kernels and leaves of neem, Azadirachta indica A. Juss, in Togo". Zeitschrift für Angewandte Entomologie 100, n. 1-5 (26 agosto 2009): 27–33. http://dx.doi.org/10.1111/j.1439-0418.1985.tb02752.x.

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Stansly, Philip A., Barry Kostyk e Robert Riefer. "CONTROL OF DIAMOND BACK MOTH ON BROCCOLI WITH INSECTICIDES, 2009". Arthropod Management Tests 35, n. 1 (1 gennaio 2010). http://dx.doi.org/10.4182/amt.2010.e2.

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Dey, D., S. Routray, S. Baral e B. Mahantheshwara. "Effect of planting dates and botanical insecticides against majorLepidopterous pests of cabbage: A review". Agricultural Reviews, 12 gennaio 2017. http://dx.doi.org/10.18805/ag.v0i0.7011.

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Abstract (sommario):

Cabbage (Brassicae oleracea var. capitata Linn.) is one of the most important and extensively cultivated vegetable crop because of its nutritional and economical values for producers and consumer point of view, respectively. The crop is prone for infestation by a number of insect pests consisting sucking and defoliating insects starting from germination to harvesting stage of the crop. In India, the diamond back moth, Plutella xylostella Linneaus and cabbage butterfly, Pieris brassicae Linneaus are the major Lepidopterous pests of cabbage. Adjusting planting dates can sometimes help to avoid certain insect infestations and reduce the need for chemical control. Planting dates influence the crop performance due to changed biotic and abiotic factors. The time of planting of cabbage, which is a season bound crop, has profound effect on the incidence of diamond back moth and cabbage butterfly. Several insecticides have been recommended through ages to avert pest damage, but some broad-spectrum synthetic organic insecticides and biopesticides are effective for the control of these two Lepidopterous pests.

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Kommoji, Tejasri, e Anoorag R. Tayde. "Efficacy of Newer Selected Insecticides, Beaveria bassiana and Neem Oil against Diamond Back Moth (Plutella xylostella)(L.) in Cabbage (Brassica oleracea var capitata)". International Journal of Plant & Soil Science, 27 giugno 2022, 485–91. http://dx.doi.org/10.9734/ijpss/2022/v34i2031179.

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The trail was conducted at Crop research farm, Department of Entomology of Naini Agriculture institute, SHUATS, Prayagraj, (U.P) during rabi 2021-2022 to study the efficacy of newer selected insecticides, Beaveria bassiana and Neem oil against Diamond back moth (Plutella xylostella) in Cabbage (Brassica oleracea var capitata) and the experiment was laid out in randomised block design with eight treatments and each was replicated thrice using a variety green soccer 546. The treatments are Spinosad 45% SC, Indoxacarb 14.5%SC, Emamectin benzoate 5%SG, Chlorantraniliprole 18.5%SC, Fipronil 5%SG, Beaveria bassaina (1x108 CFU/gm), Neem oil 0.3% along with an untreated control. The data on Percent reduction of larval population were significantly superior over control but among all treatments, chlorantraniliprole 18.5% SC is best effective for diamond back moth had showing (80.35%) percent reduction of larval population followed by Spinosad 45% SC (77.06%), Indoxacarb 14.5SC (73.43%), Emamectin benzoate 5%SG (71.77%), Fipronil (68.26%),Beaveria bassiana (67.06%) and Neem oil was least effective had showing (61.18%) percent reduction of larval population but superior over control. Among all the treatments, highest yield (314.9q/ha) and Cost-benefit ratio (1:7.59) was recorded in Chlorantraniliprole 18.5 %SC followed by Spinosad 45%SC with a yield of (273.73q/ha) and Cost-benefit ratio (1:6.77) as compared to control.

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RAWAT, SHALINI, PRITAM KALIA e NAVODIT GOEL. "Standardization of an efficient protocol for transformation in Indian cauliflower (Brassica oleracea) var. botrytis". Crop Research VOLUME 57, ISSUE 4 (JULY) (28 luglio 2022). http://dx.doi.org/10.31830/2454-1761.2022.cr-11088.

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Cauliflower is an important Cole crop grown all over the world for its nutritional benefits. But it is encountered by a serious problem caused by the insect- pest attack. Plutella xylostella is one such insect which causes huge losses. An efficient and simple method for genetic transformation and regeneration of Indian cauliflower, Brassica oleracea var. botrytis has to be developed. Hence, optimization of the plant transformation is a pre- requisite for successful transformation process. Therefore, we worked on this objective at the Indian Agricultural Research Institute, New Delhi, India, and optimized the Agrobacterium-mediated transformation protocol in Indian cauliflower, Pusa Snowball K1 and Pusa Snowball KT25 varieties for developing insect resistance against Plutella xylostella using Bt genes. The Agrobacterium tumefaciens mediated transformation process was utilized for carrying out the transformation and the explant was obtained from the seedlings germinated from the seeds of the respective variety and used for genetic transformation process. The transgene integration and expression were later confirmed by PCR and RT-qPCR, respectively. Moreover, insect bioassay showed that transgenic plants effectively controlled the Diamond Back moth infestation concerning to the control plants indicating the presence of resistance developed against the insect. Hence, this protocol efficiently regenerated transgenic plants that lead to the resistance against biotic stress, specific to the insect Diamond back moth.

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Tesi sul tema "Diamond-back moth Control"

Wang, Xin-geng. "Patch exploitation by the parasitoids of Plutella xylostella (L.): from individual behaviour to population dynamics". Title page, contents and summary only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phw2464.pdf.

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Abstract (sommario):

Includes bibliographical references (leaves 204-230). Investigates the behaviour and ecology of the two major larval parasitoids of the diamondback moth, Plutella xylostella; Cotesia plutellae and Diadegma semiclausum.

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Wang, Xin-geng. "Patch exploitation by the parasitoids of Plutella xylostella (L.): from individual behaviour to population dynamics / Xin-geng Wang". Thesis, 2001. http://hdl.handle.net/2440/21743.

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Abstract (sommario):

Includes bibliographical references (leaves 204-230).
xvi, 230 leaves : ill. ; 30 cm.
Investigates the behaviour and ecology of the two major larval parasitoids of the diamondback moth, Plutella xylostella; Cotesia plutellae and Diadegma semiclausum.
Thesis (Ph.D.)--University of Adelaide, Dept. of Applied and Molecular Ecology, 2001

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