MONITORING OF ALATE MUSTARD APHID, LIPAPHIS ERYSIMI THROUGH YELLOW STICKY TRAPArun Kumar, Mukesh Kumar Mishra, Rakesh Pandey and B.K. SinghAbstract A research experiment was conducted to monitor mustard aphid, Lipaphis erysimi (Aphididae: Hemiptera) through yellow sticky trap during two consecutive rabi seasons of 2019-21 at Banda University of Agriculture and Technology, Banda. The catches of alate population were first noticed in 45th Standard Meteorological Week (first week of November), then it gradually increased with a slight fluctuation with peak of 135.93/ trap (3rd SMW) and declined after 5th SMW over the experimentation period. The population was competitively higher in 2020-21 than 2019-20. Maximum trapped occurred in 3rd SMW (115.86 / trap) during 2019-20, whereas, it was three peaks were recorded in 52nd (156.07/trap), 3rd (156.00/trap) and 9th (122.82 / trap) SMW during 2020-21. Aphid population had highly significant negative correlation with minimum temperature (r=-0.784) and maximum temperature (r=-0.730), highly significant positive correlation with maximum relative humidity (RH) (r= 633) and significant positive correlation with minimum RH (r= 457). Stepwise regression analysis showed the combined influence of weather parameters had more influence on incidence of alate aphid (R2 = 0.808) than the single weather parameter (R2 =0.139). |