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Anandmurthy, T.
- Bio-Efficacy of New Molecules against Sucking Pests in Summer Cowpea
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Authors
Affiliations
1 Department of Entomology, Junagadh Agriculture University, Junagadh (Gujarat), IN
2 Millet Research Station (J.A.U.), Jamnagar (Gujarat), IN
1 Department of Entomology, Junagadh Agriculture University, Junagadh (Gujarat), IN
2 Millet Research Station (J.A.U.), Jamnagar (Gujarat), IN
Source
International Journal of Plant Protection, Vol 10, No 2 (2017), Pagination: 236-240Abstract
Investigations was conducted to evaluate bio-efficacy of some new molecules of insecticides against major sucking pests of summer cowpea at Instructional Farm, College of Agriculture, Junagadh Agricultural University, Junagadh during summer 2016 with ten treatments and three replications. Among the tested insecticides, dinotefuran 0.006 per cent, acetamiprid 0.004 per cent and dimethoate 0.03 per cent were found most effective against jassids. The treatments of acetamiprid 0.004 per cent, dimethoate 0.03 per cent and spiromesifen 0.08 per cent were found most effective in reducing the whitefly population. The application of dinotefuran 0.006 per cent acetamiprid 0.004 per cent and dimethoate 0.03 per cent proved effective in recording minimum aphid population. The highest grain yield of cowpea 853 kg/ ha was recorded from the treatment of dinetofuran 0.006 per cent which was statistically at par with acetamiprid 0.004 per cent (816 kg/ha), spiromesifen 0.08 per cent (795 kg/ha), dimethoate 0.03 per cent (790 kg/ha) and flonicamid 0.02 per cent (752 kg/ha). On the basis of economics, acetamiprid 0.004 per cent (1: 21.8) proved to be most economically viable treatment followed by dimethoate 0.03 per cent (1:21.2), spiromesifen 0.08 per cent (1:9.8), dinetofuran 0.006 per cent (1:9.4), chlorfenapyr 0.0075 per cent (1:5.8), clothianidin 0.003 per cent (1:5.5) and flonicamid 0.02 per cent (1:4.8).Keywords
Cowpea, Bioefficacy, Sucking Pests, Dinotefuran, Flonicamid.
References
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- Seasonal Incidence of Major Sucking Pests Infesting Cowpea and their Relation to Weather Parameters
Abstract Views :205 |
PDF Views:0
Authors
Affiliations
1 Department of Entomology, Junagadh Agriculture University, Junagadh (Gujarat), IN
2 Millet Research Station (J.A.U.), Jamnagar (Gujarat), IN
1 Department of Entomology, Junagadh Agriculture University, Junagadh (Gujarat), IN
2 Millet Research Station (J.A.U.), Jamnagar (Gujarat), IN
Source
International Journal of Plant Protection, Vol 11, No 1 (2018), Pagination: 35-38Abstract
Investigations were carried out on seasonal incidence of major sucking pests that attack the cowpea at College Farm, Junagadh Agricultural University, Junagadh during summer 2016. The result revealed that jassid population initiated from the second week of March with 0.48 nymph/3 leaves/plant and reached a peak (4.91 nymphs/3 leaves/plant) in first week of May. The population of whitefly and aphid also appeared from the second week of March and reached to a peak of 4.99 whiteflies/3 leaves/plant and 3.82 aphid index/plant during the fifth week of April, respectively. Among the various weather parameters, maximum temperature showed a significant positive correlation with jassid, whitefly and aphid population in summer cowpea. Whereas, wind speed showed negative influence and bright sunshine hours exhibited positive influence on population of all sucking pests in cowpea crop.Keywords
Sucking Pests, Cowpea Weather Parameters.References
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