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1 January 2016 Efficacy of Insecticides and Bio-pesticides for Control of Greenhouse Whitefly on Tomatoes in Greenhouses in India
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Abstract

The greenhouse whitefly, Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae), is a major insect pest of tomato under field and greenhouse conditions, and its management is based primarily on foliar applications of insecticides. However, the continuous use of conventional insecticides leads to the development of insecticide resistance, which emphasizes the need for new pest management alternatives. The present study was conducted to investigate the efficacy of insecticides and bio-pesticides against the greenhouse whitefly on tomatoes grown in polyhouses (plastic-covered greenhouses) for two years at Palampur, Himachal Pradesh, India. Results showed that abamectin resulted in the highest mean percent reduction in immatures of T. vaporariorum, followed by acetamiprid and buprofezin. Spiromesifen and bifenthrin resulted in moderate levels of efficacy, followed by azadirachtin and mineral oil. Spinosad, Melia, and malathion (the insecticide-treated control) showed the least efficacy against immatures of T. vaporariorum. Similarly, abamectin and acetamiprid were the most highly effective materials against the adult stage. Bifenthrin, spinosad, azadirachtin, and buprofezin showed moderate reductions in adult whitefly populations. Spiromesifen, mineral oil, Melia, and malathion were the least effective against adult populations of T. vaporariorum. Overall, abamectin, acetamiprid, buprofezin, and bifenthrin were the most promising materials for managing T. vaporariorum in greenhouses. Azadirachtin and mineral oil also provided adequate control of greenhouse whitefly on greenhouse tomatoes.

The South Carolina Entomological Society, Inc.
Lokender Kashyap and Duni Chand Sharma "Efficacy of Insecticides and Bio-pesticides for Control of Greenhouse Whitefly on Tomatoes in Greenhouses in India," Journal of Agricultural and Urban Entomology 32(1), 40-49, (1 January 2016). https://doi.org/10.3954/1523-5475-32.1.40
Accepted: 19 July 2016; Published: 1 January 2016
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