Author(s): A. SAMANTA, K. SEN AND I. BASU

Abstract: Field experiment was conducted at District Seed Farm (AB Block) of BCKV, Kalyani, Nadia, West Bengal during Mid January to May, 2013 to evaluate the efficacy of different acaricidal and insecticidal molecules against thrips and yellow mite infestation on chilli. Among the treatments, spiromesifen 24SC @ 120 g a.i. ha-1, fenpyroximate 5 SC @ 25 g a.i. ha-1 and diafenthiuron 50 WP @ 375 g a.i. ha-1 were observed to be very much effective against yellow mite. Whereas, chlorfenapyr 10 SC @ 75 g a.i. ha- 1, diafenthiuron 50 WP @ 375 g a.i. ha-1 and spiromesifen 24 SC @ 120 g a.i. ha-1 were adjudged as the effective insecticides against thrips. None of the chemicals was found harmful against predatory coccinelids and spiders. Highest fruit yield was obtained with diafenthiuron 50 WP @ 375 g a.i. ha-1 (17.64 q ha-1) followed by spiromesifen 24 SC @ 120 g a.i. ha-1 (16.05 q ha- 1). Thus, spiromesifen 24 SC, chlorfenapyr 10 SC, fenpyroximate 5 SC and difenthiuron 50 WP may be recommended to control yellow mite and thrips infestation in chilli.

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