Abstract
Forty seed sources of Pongamia pinnata (L.) exhibiting different morphometric characteristics collected from the different districts of Punjab and Haryana were screened for the incidence of leaf blotch miner, Acrocercops transecta Meyrick. The range of mean incidence of A. transecta expressed in terms of mean leaf damage (%) on seed sources collected from Punjab was higher (17.80-100 %) as compared to its incidence (75.47-100 %) on the seed sources of P. pinnata collected from Haryana. Three seed sources of P. pinnata (PB-2, PB-3 & PB-1) collected from Punjab, with mean incidence of A. transecta (17.80-28.67 %) were categorised as most resistant. However, the three sources of P. pinnata (HR-17, HR-1 & HR-19) collected from Haryana with mean incidence of A. transecta (75.47-78.87 %) were categorised as moderately resistant.
Keywords
Acrocercops transecta, Incidence, Leaf Blotch Miner, Mean Leaf Damage, Pongamia pinnata, Percentage of Resistance, North West India, Punjab, Haryana