Bionomics, host plant resistance, and management of the legume pod borer, Maruca vitrata — a review uri icon

abstract

  • Legume pod borer, Maruca (testulalis) vitrata (Geyer) is one of the major constraints in increasing the production and productivity of grain legumes in the tropics. Screening for resistance has been carried out using natural infestation, and multi- and no-choice tests under greenhouse/laborator conditions. Information is available on genotypic resistance to M. vitrata in cowpea, while such information on pigeonpea and other legumes is limited. Stem and pod wall thickness, trichomes and podding habit are associated with resistance to Mamcu. Several natural enemies have been recorded on M vitrata. Cultural practices such as intercropping, weeding, time of planting, and planting density reduce its damage in cowpea. Several insecticides have been found to be effective for controlling this insect. There is a need to generate information on insect-plant-environment interactions, screening techniques, mechanisms and diversity of resistance, genetic transformation of host plants involving Bt genes, and use of natural enemies for integrated pest management in diverse agro-ecosystems

publication date

  • 1998
  • 1998