Author(s):

SD Patil, DV Kusalkar, HM Patil and KD Bhoite

Abstract: The incidence of brown plant hopper (Nirparvata lugens (Stal.) was started from 32^nd MW i.e. first week of September with its peak during 42^nd MW i.e. third week of October. The continuous increase in population of brown plant hopper was recorded since 36^th MW to 42^nd MW. Incidence of brown plant hopper showed significant negative correlation with rainfall (r = -0.488), morning relative humidity (r = -0.614) and positive correlation with maximum temperature. The incidence of stem borer was commence during 34^th MW and increased gradually 37^th MW. The incidence of leaf folder was initiated in 37^th MW and reached to its peak in 40^th MW. The correlation analysis regarding leaf folder and stem borer revealed a significant positive correlation with maximum temperature and significant negative correlation with evening humidity, respectively.

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