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Sahu, Arun
- Detection of Insecticidal Resistance against Various Insect Pests in Vegetable Crops at Raipur
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Authors
Affiliations
1 Department of Entomology, College of Agriculture, Indira Gandhi Agricultural University, Raipur (C.G.), IN
1 Department of Entomology, College of Agriculture, Indira Gandhi Agricultural University, Raipur (C.G.), IN
Source
International Journal of Plant Protection, Vol 9, No 2 (2016), Pagination: 589-592Abstract
Bioassay methods such as leaf dip and larvae dip were used in the laboratory conditions for testing lethal dose of insect pests conducted at laboratory of department of entomology, IGKV, Raipur (C.G.) during 2009-2010. At least five dilutions for each of the selected insecticides were tested using different methods. In each method and insecticide at least 10 larvae of 2-3rd instars were released on each dilution in 3 replications along with untreated control. The results shown that the Helicoverpa armigera population was maximum LD50 value to Chlorpyriphos (O.633 μg/lit) followed by Spodoptera litura population LD50 (0.576 μg/lit) and lower value for Leucinodes arbonalis LD50 (0.503 μg/lit) and the Plutella xylostella population showed maximum LD50 value to Cypermethrin (0.810μg/lit) and lower LD50 value (0.246 μg/lit) for Trichoplusia ni. Therefore, H. armigera showed higher resistance to Chlorpyriphos and P. xylostella showed higher resistance towards Cypermethrin.Keywords
Bioassay, LD50 Value, Chlorpyriphos, Cypermethrin.
References
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- Assessment of Some Home Processes for Decontamination of Insecticide Residues in Vegetables
Abstract Views :191 |
PDF Views:0
Authors
Affiliations
1 Department of Entomology, College of Agriculture, Indira Gandhi Agricultural University, Raipur (C.G.), IN
1 Department of Entomology, College of Agriculture, Indira Gandhi Agricultural University, Raipur (C.G.), IN
Source
International Journal of Plant Protection, Vol 10, No 1 (2017), Pagination: 83-86Abstract
The present investigation was conducted at "Residue Analysis Laboratory" Department of Entomology, College of Agriculture, Raipur (C.G.) during 2009-2010 on Assessment of insecticide residues in vegetables. The indiscriminate use of pesticide on vegetables possesses serious residue problems in humans, animals and environment. The residue is above the Maximum Residue Limit values. Contamination may occur mainly due to harvest of crops before the recommended waiting period. The household processing is the preparation of food using like washing, peeling, cooking, trimming or hulling is reduce to some extent of toxicity from food material. This present results revealed that out of different home processing procedures, tap water wash for 15 minutes was found to be the best for decontamination of endosulfan residues on tomato to an extent of 89.59 per cent followed by hot water treatment (84.24 %).Keywords
Residue, Vegetable, Home Process, Endosulfan, Tomato.References
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