Bio-efficacy of different insecticides against whitefly (Bemisia Tabaci) on Tomato, (Lycopersicon esculentum Mill)
VG Sharma, Sushil Kumar
Abstract
VG Sharma, Sushil Kumar
Abstract
The experiment was conducted in 2015-17 to study the bio-efficacy of different insecticides against whitefly (Bemisia tabaci) on tomato (Lycopersicon esculentum Mill). It was observed that thiamethoxam 25 WG 0.008 percent was the most effective treatment in reducing the whitefly population followed by spiromesifen 22.9 SC 0.028 percent. Dimethoate 30 EC 0.03 percent was ranked third behind thiamethoxam and spiromesifen and was significantly superior over the rest of the treatments. On the other hand, quinalphos 25 EC 0.05 percent was not found effective against the pest and was the least effective treatment at all the intervals after spraying to control the whitefly population.
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The experiment was conducted in 2015-17 to study the bio-efficacy of different insecticides against whitefly (Bemisia tabaci) on tomato (Lycopersicon esculentum Mill). It was observed that thiamethoxam 25 WG 0.008 percent was the most effective treatment in reducing the whitefly population followed by spiromesifen 22.9 SC 0.028 percent. Dimethoate 30 EC 0.03 percent was ranked third behind thiamethoxam and spiromesifen and was significantly superior over the rest of the treatments. On the other hand, quinalphos 25 EC 0.05 percent was not found effective against the pest and was the least effective treatment at all the intervals after spraying to control the whitefly population.
Key concepts: Whitefly, Lycopersicon, Thiamethoxam, Dimethoate, Biology, Quinalphos, Population, Toxicology