Preliminary Studies on the use of Botanical Extracts as An Eco-Friendly Approach to Manage Pests of Rice in Karaikal, U.T. of Puducherry

Field experiments were conducted at the Eastern farm of Pandit Jawaharlal Nehru College of Agriculture and Research Institute (PAJANCOA and RI), Karaikal, during Rabi 2019-2020 to study the effect of botanical extracts against the major pests of rice. Gall midge (Orseolia oryzae), it was found that Significant differences (P < 0.01) were recorded, the overall mean silver shoot damage was low in thiamethoxam 25 WG at 40 g / ac (4.94 %) with a percent reduction of 31.52 %, and among the botanical treatments, garlic and chilli extract at 5 % recorded the lower damage of 5.63 % with a percent reduction of 21.95 %. Case worm (Parapoynx stagnalis) mean leaf damage was low in novaluron 10 EC at 400 ml/ac with a percent reduction of 50.36%. Garlic and chilli extract recorded the lower damage of 4.85% with a percent reduction of 41.99%. The green leafhopper (Nephotettix virescens) and brown planthopper (Nilaparvata lugens) populations were low in thiamethoxam 25 WG at 40 g/ac with a percent reduction of 59.34 and 68.72 % followed by five leaf extract, with a reduction of 44.04 and 50.19 % compared to the untreated check.