Vol. 10, Special Issue 1, Part L (2026)

A roving survey was undertaken during vegetative, reproductive and harvesting stage of the crop to record the incidence of insect pests and their natural enemies prevailing on potato during both kharif and rabi seasonof 2015, 2016 and 2017 at Hassan districts of Karnataka. Eleven villages were selected for the study and from each village ten farmer’s fields were selected for recording the activity of insect pests and their natural enemies. To record the different insect pests of potato and their damage, fortnightly surveys were conducted in Bhageshapura, Chagachagere, Chikkanahallikoppalu, Dasanahalli, Doddamagge, Gandasi, Habbanaghatta, Malalikere, Mokaligrama, Shankarapura and Dudda villages. In each village, 10 plants were randomly selected. The pooled data of 3 years roving survey revealed that the highest incidence of Aphids/plant, was recorded at Dudda village 33.54 whereas least number of aphids were recorded at Mokaligrama 16.58 aphids/plant during Kharif, similarly the highest percent incidence thrips/plant, was recorded at Doddamagge village 20.92 thrips/plant and least incidence of thrips were recorded at Gandasi 14.16. Bhageshapura village recorded 12.29 Spodopteralitura/plant and least incidence of S. litura were recorded at Habbanaghatta 2.57 S. litura/plant. The infestation of Leaf miner was noticed in Habbanaghatta village 32.72 Leaf miner/plant followed by Gandasi 27.74 Leaf miner/plant and least incidence of Leaf miner were recorded at Mokaligrama 13.83 Leaf miner/plant. The infestation of Ash weevil was highest in Doddamagge village 11.20 Ash weevil/plant, mole cricket was maximum in Gandasi village 2.94 Mole cricket/plant, number of mites/plant was recorded at Dasanahalli village 10.84 mites/plant, an incidence of root grub was highest in Mokaligrama village 6.11 Root grub/sq.meter, the highest percent of Potato tuber moth/plant, was recorded at Doddamagge village 4.75% Potato tuber moth/plant and least infestation of Potato tuber moth were documented at Habbanaghatta 2.13% of Potato tuber moth/plant.