tailieunhanh - Seasonal incidence and influence of environmental factors on the aphid complex on cabbage (Brassica oleracea var. capitata L.) crop

Studies on seasonal incidence of aphid (Brevicoryne brassicae L.), infesting cabbage (Brassica oleracea var. capitata L.) work was carried out at College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (.) during 2015-16 and 2016-17. The Brevicoryne brassicae L. damage was observed with a varying degree of infestation. The peak population of aphid, Brevicoryne brassicae L., was observed / 20 plants and 20 plants in month of Febuary during both years (2015-16 and 2016-17), respectively. | Seasonal incidence and influence of environmental factors on the aphid complex on cabbage (Brassica oleracea var. capitata L.) crop

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