Efficacy of a Combination Formulation of Imidacloprid 18.5 Hexaconazole 1.5 against Termites, White Grub and Collar Rot in Groundnut

Groundnut cultivation worldwide, particularly in India, faces significant challenges from soil-borne insect pests like termites (Odontotermes obesus) and white grub (Holotrichia consanguinea), as well as diseases such as collar rot (Aspergillus niger). Present study aimed to assess the efficacy of a combination formulation containing imidacloprid 18.5% + hexaconazole 1.5% to manage these soil-borne threats particularly termites and white grub, as well as diseases such as collar rot. The experiment was laid out in randomized block design in five treatments replicated thrice in plot size of 5 x 4 m² on groundnut variety SG 99. The combination product was applied as a seed treatment at varying doses: 1, 2, and 4 ml/kg alongside the recommended fungicide tebuconazole 2DS @ 1.5 g/kg, during two crop seasons in 2019 and 2020 at Punjab Agricultural University, Ludhiana. Results indicated that the 2 g/kg dosage of the combination formulation (imidacloprid 18.5% + hexaconazole 1.5%) was not only the most effective but also economically advantageous for managing termites, white grub and collar rot. This combination product effectively addresses both insect-pests and collar rot disease in a single application, thereby, offering a streamlined and efficient solution for groundnut farmers.