Evaluation of different insecticides against citrus leaf miner on Nagpur mandarin
SS Shinde, PS Neharkar, NG Dhurve, HR Sawai, NV Lavhe and DS Masolkar
The present investigation was conducted at Centre of Excellence for Citrus (Indo- Israel Project) Bharat Nagar, Horticulture Section, College of Agriculture, Nagpur during kharif 2016-2017. treatments viz. (T1) Diafenthiuron 50 EC (0.05%), (T2) Triazophos 40 EC (0.06%), (T3) Spinosad 45 SC (0.03%), (T4) Imidacloprid 17.8 SL (0.06%), (T5) Acetamiprid 20 SP (0.04%), (T6) Chlorpyriphos 20 EC (0.06%), (T7) Thiamethoxam 25 WG (0.06%), (T8) Diflubenzuron 25 WP (0.08%) and Control (water spray) on Nagpur mandarin against citrus leaf miner. Observations on per cent leaves infestation of citrus leaf miner were recorded on 4 twigs per plant at 3 DAS and 7 DAS of each application in each treatment to work out per cent infestation per shoot per plant of all treatments. The cumulative effect of three applications of all the treatments revealed that, the (T7) Thiamethoxam 25 WG (0.06%) recorded lowest 5.47 per cent leaf infestation of leaf miner. (T3) Spinosad 45 SC (0.03%) which showed 7.23 per cent leaf infestation and found at par with (T4) Imidacloprid 17.8 SL (0.06%) showed 8.52 per cent leaf miner infestation and followed by (T8) Diflubenzuron 25 WP (0.08%) showed 11.99 per cent leaf miner infestation.