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Aurangābād, India

Singh B.K.,National Horticultural Research | Pandey J.G.,National Horticultural Research | Gupta R.P.,National Horticultural Research
Pestology | Year: 2012

Thrips is the major pest problem of the onion crop in India. Mostly insecticides are used for the purpose of thrips control but now they are reported ineffective. In order to avoid this problem a field trial was conducted at RRS, Nashik during Rabi 2010-11 on onion variety Agrifound Light Red for the management of onion thrips by using some new generation insecticides. Significantly lowest mean thrips population (15.57 nymph/plant) were recorded in four spray of profenofos @ 0.1% (check) followed by profenofos 40% + cypermethrin 4.0% @ 1.8 ml/lit and highest mean thrips population (41.46 nymph/plant) was recorded in buferofezin @ 2ml/lit treated plot.


Pandey S.,National Horticultural Research | Singh B.K.,National Horticultural Research | Gupta R.P.,National Horticultural Research
Indian Journal of Agricultural Research | Year: 2013

Field experiments were conducted at Regional Research Station Nashik in two consecutive years during Rabi 2007-08 and 2008-09 on onion variety Agrifound Light Red for the management of onion thrips to assess the efficacy of neem based botanicals and chemical insecticides comprising N.S.K.E. @ 4.0%, Neem Seed Powder @ 6.0%, Fipronil 5 SC @ 1.5 ml/lt., Imidacloprid17.8 SL @ 0.3ml/lit and Spinosad 45 SC @ 1.0 ml/lt. by applying just after appearance of thrips which was followed by two sprays at fifteen days interval. The lowest mean thrips population (8.0 nymphs/plant) and the highest marketable yield (362 Q/ha) were achieved by applying fipronil @ 1.5 ml/lt. resulting in the highest cost benefit ratio (1:11.55) leading to an arbitration of spraying fipronil @ 1.5 ml/lt. at fifteen days interval minimize the thrips population and increase the yield of Rabi onion, while neem based formulations were found less effective.

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