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| Authors: | N Natarajan P C Sundara Babu |
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| Institution: | Department of Agricultural Entomology , Tamil Nadu Agricultural University , Coimbatore, 641 003, India |
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| Abstract: | Abstract The seasonal occurrence of gram pod borer, Heliothis armigera Hb. in sorghum during cropping periods was studied. The incidence of H. armigera larvae was highest between March and June, 1984. This gradually decreased between July and October, 1984 and was lowest between January and March, 1985. Larval counts were found to be higher on the cultivar CSH 5 than K‐tall. The main crop of first two cropping seasons harboured more larvae than the ratoon crops while in third cropping period there was no significant difference. |
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| Keywords: | Heliothis sorghum seasonal occurrence |
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