Author(s):

Munna Yadav, Rabindra Prasad, Pradeep Kumar, Chitrangda Pandey, D Prasad and Praveen Kumar

Abstract: Rice is the staple food for the Asian subcontinent. Green leafhoppers are the most common leafhoppers in rice field and are primarily critical because they spread viral disease tungro as well as they prefer rice plants that have been fertilized with large amount of nitrogen. Field trials on the subject of the effect of date of transplanting on the incidence of green leaf hopper (GLH) in rice field carried out during Kharif seasons 2016 and 2017 at research farm BAU, Kanke, Ranchi, Jharkhand. In order to be evaluated three date of transplanting (01 July, 21 July & 12 August, 20 days interval) in randomized block design and it replicate ten times with one common variety (Sahbhagi). We observed 1st time GLH incidence in our research plots 20 DAT, 30 DAT & 40 DAT respective at late planting, normal planting, and early planting in rice field. The incidences of GLH were recorded at 40, 60 and 80 DAT as well as noticed that lower incidence of the pest were started at 40 DAT and thereafter the pest intensity began to widen gradually with the advancement of crops age. It was remarkable to mention the outcome of shifting in dates of transplanting of rice were significant indication of pest population, during first date (1st July) of transplanting were recorded lower intensity of pest attack with respective to all the observation (40, 60 & 80 DAT). As such the intensity of the pest attack were observed to be in ascending order of early planting (1st July) Ë‚ normal planting (21st July) Ë‚ delayed planting (12th August) findings of the pest population GLH/10 hills, at the respective planting dates, early planting most effective than both normal & delay planting, normal date of transplanting was at par, while delay planting was on par, but overall mean population only early planting was most effective (p = 0.05), when the rice plants were transplanted at the respective planting dates in the year 2016 & 2017 studies.

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