Seasonal Population Fluctuations of Cowpea Aphid Aphis Craccivora Koch and its Predatory Coccinellids

@article{Srikanth1990SeasonalPF,
  title={Seasonal Population Fluctuations of Cowpea Aphid Aphis Craccivora Koch and its Predatory Coccinellids},
  author={Jayanthi Srikanth and N. H. Lakkundi},
  journal={International Journal of Tropical Insect Science},
  year={1990},
  volume={11},
  pages={21-26}
}
In two study seasons, viz. summer (March to May) and “kharlf” (August to October) 1984 at Bangalore, India, populations of Aphis craccivora Koch on cowpea increased rapidly with crop growth and their peak coincided with peak pod formation. The activity of predatory coccinellids started 1 to 3 weeks after the appearance of aphids. The peak predator population more or less coincided with the peak aphid population. Highly significant positive correlations were found between weekly aphid and… CONTINUE READING

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