Bioefficacy of different treatment schedules of fenazaquin against yellow mite, Polyphagotersonemus latus (Banks) of chilli and its impact on predatory mites, Amblyseius spp.

摘要

Fenazaquin (Magister 10 EC) was evaluated in three different dose levels, viz., 100, 125 & 150 g a.i./ha against yellow mite, Polyphagotersonemus latus (Banks) on chilli once in kharif and again in pre-kharif season. Effect of fenazaquin on predatorymites, Amblyseius spp. and yield of chilli were also observed. It was evident from the experiments that fenazaquin provided effective control (more than 80 percent) of yellow mite of chilli when applied @ 125-150 g a.i./ha with significant increase in yield. Fenazaquin @ 150 g a.i./ha was superior than dicofol while all the three dosages of fenazaquin was superior to ethion in controlling the phytophagous mite. Fenazaquin was also found to be ecofriendly in nature being selective in action sparing major biocontrol agent like Amblyseius spp.