Validation of integrated pest management module against insect pests of pigeonpea, Cajanus cajan in Tarai region of Uttarakhand

Abstract

./ha). The results indicated that minimum population of pod borers (Helicoverpa armigera, Maruca vitrata and podfly) and sucking insects (aphids, jassids, pod bug) was reported in IPM plots and maximum population of insects was observed in Non-IPM plots. Percent insect control over non-IPM was 50.98 % for H. armigera, 44.69 % for M. vitrata and 19.17 % for Maruca webbing were recorded. While, for sucking pest complex, insect control over non-IPM was 51.59 %, 40.36 % and 36.17 % against jassids, aphids and tur pod bug, respectively. Similarly, minimum pod borer damage (6.48 and 7.71 %) was recorded in IPM plots as compared to maximum pod borer damage (8.37 and 8.22 %) in non -IPM plots, respectively during 2014 and 2015. Whereas, pooled grain yield for IPM plots was 1286.5 kg/ha for both seasons as against 888 kg/ha in non-IPM plots with 1:2.89 benefit cost ratio. Hence, It is apparent that studied IPM module was able to increase the yield of pigeonepea with lower cost of production as against non-IPM thus it would be benefiting the farmers.