Evaluation of compatibility of insecticides with fungicides onlepidopterous pests and tikka leaf spot of groundnut Kumar G. V. Suneel Acharya N. G. Ranga Agricultural University, Agricultural Research Station, Darsi, 523247, Prakasam Dt. Andhra Pradesh, Email: suneelkumar.gonam@gmail.com Online published on 5 February, 2019. Abstract Three insecticides and three fungicides were evaluated alone and in combination against leaf miner, tobacco caterpillar, early and late leaf spot in groundnut, and their phytotoxicity during kharif, 2015. No phytotoxic symptoms were observed indicating that all the combinations are safe. Against leaf miner and tobacco caterpillar in combination and alone, chlorantraniliprole resulted in maximum reduction in foliage damage-87.8% by leaf miner and 80.6% by tobacco caterpillar after second application (55 DAS). The combination with fungicides did not reduce its efficacy indicating good compatibility. Similarly, the fungicide hexaconazole was effective against early and late leaf spot alone and in combination with insecticides-this resulted in damage score of 0.9 (0%) and 6.5 (41–60% disease severity), respectively. All the insecticide and fungicide combinations which effectively controlled lepidopterous pests and tikka leaf spot disease gave higher dry pod yield (671 to 926 kg/ha) compared to individual application of insecticides (440 to 556 kg/ha) and fungicides (440 to 486 kg/ha) and untreated control (255 kg/ha). Top Keywords Groundnut, chlorantraniliprole, indoxacarb, mancozeb, carbendazim, hexaconazole, leaf miner, tobacco caterpillar, dry pod yield. Top |