• T K Banerjee

      Articles written in Proceedings – Animal Sciences

    • Behavioural response (feeding preference and dispersal posture) ofAphis gossypii Glover on brinjal crop

      T K Banerjee D Raychaudhuri

      More Details Abstract Fulltext PDF

      During late July to early August (kharif) and late November to late December (rabi), alates ofAphis gossypii Glover appear on the old leaves of the tender brinjal plants. Population build up is quite gradual with a sigmoid growth and the pest reaches peaks during late December (kharif) and late February (rabi) when plants become mature. In course of incidence they distribute from old to young to tender leaves and the aphid incidence on these leaves is always followed by the migration of alate immigrants. Thereafter, the aphid prefers mature tissues of the crop and in course of crop maturity its dispersing trend follows from old to the other leaves as well as plants in a sigmoid posture in a latero-angular spectrum.

    • Correlation of nutritional changes with the reproductive potential ofAphis gossypii glover on egg plant

      T K Banerjee D Raychaudhuri

      More Details Abstract Fulltext PDF

      Brinjal (solanum melongena Linn.) leaves of varied maturity show a remarkable variation in respect to the retention of nutrient contents therein. The contents also vary along with the increase of plant age.Aphis gossypii Glover, an important pest of the crop, shows high reproductive potential on old and young leaves when the plants are young (2–4 months old) and mature (4–6 months old) respectively. Amongst the nutrient content of the leaves, nitrogen level shows a significant correlation with the reproductive potential of the aphid species leading to its population outbreak and niche selection.

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