Interaction between Aphis craccivora Koch and its Predators, Coccinella transversalis Fabricius (Coleoptera:Coccinellidae) and Ischiodon scutellaris (Fabricius) (Diptera:Syrphidae)

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Authors

  • Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam ,IN
  • Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam ,IN
  • Department of Entomology, Assam Agricultural University, Jorhat 785 013, Assam ,IN

DOI:

https://doi.org/10.18311/jbc/1996/15100

Keywords:

Aphis craccivora, Coccinella transversalis, Ischiodon scutellaris, Interaction.

Abstract

The interaction of Coccinella transversalis Fabricius and lschiodon scutellaris (Fabricius) with the aphid, Aphis craccivora Koch was studied on green gram by estimating the prey and predator populations at weekly interval. Populations of both the predators had positive correlation with the aphid, attaining population peak simultaneously with their prey. The population decline of the prey was followed by their predators.