Parasites of the Pigeonpea Podfly Melanagromyza obtusa (Malloch) in India

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Authors

  • Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324 ,IN
  • Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324 ,IN
  • Legumes Program, International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324 ,IN

DOI:

https://doi.org/10.18311/jbc/1987/15376

Keywords:

Melanagromyza, Parasites, Eupelmus, Euryroma, Antistrophoplex, Ormyrus, Influence of Host Plant Variety.

Abstract

In a survey of parasites on the pigeonpea podfly. Mefanagromyza obtuse (Malloch) (Diptera: Agromyzidae) in India, six genera-Euderus (Eulophidae). Eupelrnus (Eupelmidae), Eurytoma, Plutarchia (Eurytomidae), Anusrrophoplex (Torymidae) and Ormyrus (Ormyridae) were recorded during 1977-83. Data on monthly overall parasitism revealed peaks during February-March. when the pest populations are also usually high. In a two year (1980-82) study at ICRISAT Center, Euderus and Ormyrus were found to be the dominant parasites on M. obtusa. Difference in extent of parasitism was observed between samples from two pigeonpea cultlvars- ICP 1 and HY 3C, which was probably related to host abundance. Surveys revealed that the genera - Euderus and Ormyrus are also dominant and widely spread in India and these should be conserved. The possibility of augmentation is also mentioned.