Studies on the dissipation pattern of spirotetramat and imidacloprid in/on tomato fruits were undertaken by following three foliar applications at recommended and double the recommended doses of combination product spirotetramat 120 SC + imidacloprid 120 SC @ (75 and 150 g a.i./ha) at fruiting stage. Residues of spirotetramat and imidacloprid dissipated with half-life of 1.93, 1.37 and 1.40, 1.92 days, at both the doses respectively. The residues reached below quantification limit (BQL) on 5th day in spirotetramat and 7 th day in imidacloprid at the recommended dose. Considering this, Pre-harvest interval (PHI) of 7 days can be suggested for combination product with reduced risk of insecticide residues in tomato.

A field experiment on Influence of plant density of marigold on larval population of H. armigera in chickpea (Cicer arientinum L.) was conducted at Entomology Research Farm, PGI, MPKV, Rahuri during Rabi 2019-20 to evaluate the different planting combination of chickpea (Digvijay) with marigold in a Randomized block design (RBD) with 4 replication. All treatment combination record lowest larval population and pod damage as compare to sole chickpea crop. The lowest larval population was observed in T2 Chickpea +Marigold 3 (6:2) i.e. 2.06 larvae per meter row length. In Trap cropping with marigold maximum yield (22.54 q/ha) of chickpea was obtained from Chickpea + Marigold, 6:2 ratio. The average pod damage recorded ranged between 11.18 to 17.03%.

The field experiment was carried out to investigate effect of some phototropical, mechanical and botanical control measures in comparison with chemical treatment against okra shoot and fruit borers on okra under field condition during kharif, 2019. The minimum shoot infestation due to Earias vittella were reported in Recommended insecticidal spray (I st Spray and III rd Spray with Imidacloprid 17.8% SL, II nd Spray and IV th Spray with Fenvalerate 20% EC) which was at par with non-pesticidal treatment Removal of infested shoots + Light Traps + NSE (5%) + Yellow sticky trap followed by treatment Light traps + NSE (5%) and Removal of infested shoots + Light traps + Yellow sticky trap. While minimum fruit damage on number as well as weight basis due Earias vittella and Helicoverpa armigera were also observed in above order of treatments.