Performance of Promising Potato Genotypes in Red Ant (Dorylus orientalis) Management

This experiment was carried out to identify appropriate potato genotypes for red ant management and increase the tuber yield of during 2020 2021 years. Eight different promising [1. PRP-056267.9 2. PRP-85861.11 3. CIP-394311.112 4. PRP-136368.1 5. PRP-22627.1 6. PRP-296668.1 7. Janakdev (standard check) 8. Ilam local (Bite)] received from National Potato Research Program (NPRP), Khumaltar, Lalitpur, Nepal were included in study. Experiment conducted previously infected field Completely Randomized Block Design with three replications. The experimental plot size 5.4 m2 (3m x 1.8m) where planting tubers done at 60 cm row 25 plants plant spacing. Fertilizers NPK applied rate 100:100:60 kg /ha 20 t/ha compost. Well sprouted weight 30-40 g planted second week February. Harvesting last July. Data on attributing traits, late blight disease, number damaged tubers, infested healthy recorded. standard check variety (1.00 score, 2.32 – 2.36 % incidence percentage 0.66 0. 71 ), 4.51 5.10 0.56 67 ) 4.55 5.47 0.76 86 found tolerant infestation produced highest (27.74 28.62 t by followed 21.79 - 22.26 21.09 21.05 genotypes). Therefore, as well is higher lower down Jaubari area.