Population Dynamics of Mango Hopper on Panicle of Dashehari and its Interaction with Abiotic Factors

Hopper population on panicle of mango cv. Dashehari was quite low in February, 2000 (0.13 hopper per panicle in 2nd week), then started building up from March and reached peak (5.30 hoppers per panicle) in 2nd week of April and then decreased. During the year 2001, the population, however started increasing from 2nd week of February and reached peak (13.4 hoppers per panicle) in 2nd week of March, fluctuating from 6-13 hoppers per panicle till 3rd week of April and decreased thereafter. The correlation between hopper populations on panicle cv. Dashehari was positive with temperature and sunshine and negative with RH, rainfall and wind velocity