The present experiment was carried out with the objective to find out the effect of colour sticky traps for catching capacity of thrips. A field experiment was conducted at Nashik, Maharashtra, India for two consecutive years during 2022-23 and 2023-24 in the rabi season on onion variety NHRDF Red 4. Result showed that over all highest number of thrips was stuck (40.75 thrips) on the sticky traps were recorded in treatment T1 which utilized two yellow sticky trap per plot which utilized two yellow sticky traps per plot and lowest number of thrips (23.91thrips) were stuck on sticky trap treatment T2. The highest gross yield (309.35q/ha) and marketable yield (291.44q/ha) were recorded in the T1 treatment. The maximum incremental cost-benefit ratio (ICBR) of 1:5.50 was observed in this treatment. The highest thrips population and lowest yield were recorded in the control treatment. The findings indicate that yellow sticky traps are effective for the early detection and monitoring of thrips populations in onion crops.
Pathak et al. (Wed,) studied this question.
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