Biology and Feeding Potential of Sphaerophoria javana Wied. (Diptera:Syrphidae) on the Bean Aphid, Aphis craccivora Koch

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Authors

  • Department of Seed Technology, College of Agriculture, OUAT, Bhubaneswar 751 003 ,IN
  • Department of Zoology, Gangadhar Meher College, Sambalpur 768004, Orissa ,IN

DOI:

https://doi.org/10.18311/jbc/2002/4132

Keywords:

Aphis craccivora, Biology, Feeding Potential, Sphaerophoria javana.

Abstract

The biology and feeding potential of Sphaerophoria javana Wied, were studied in the laboratory at 27.9±1.1° C and 85.7±5.2 percent relative humidity, on Aphis craccivora Koch, a common pest of Dolichos lablab L. The egg, larval and pupal stages occupied 1.96±0.07, 6.30±0.22 and 5.38±0.04 days, respectively. The total life cycle was completed in 14.02±0.2 days. The per day consumption of first, second and third instar larvae was 12.7±2.2, 69,4±7.4 and 112.2±7.7 aphids, respectively.