Pest Management in Grain Legumes: Potential and Limitations uri icon

abstract

  • Grain legumes such as chickpea, pigeonpea, cowpea, field pea , lentil, ,and Phaseolus beans are the principal source of dietary protein among vegetarians,and are an integral part of daily diet in several forms worldwide. They are animportant component of cropping systems to maintain soil fertility because oftheir ability to fix atmospheric nitrogen, extract water and nutrients from thedeeper layers of the soil as compared to cereals, and add organic matter into thesoil through leaf drop. However, grain legumes are mainly grown under rainfedconditions and the productivity levels are quite low mainly because of severelosses due to insect pests and diseases. Average grain yield of pulses (0.86 t/ha) is only about onefourththe average yields of cereals (3.54 t/ha). Productionand productivity of grain legumes is constrained by several biotic and abioticfactors, and suffer an average of 31.9 to 69.6% loss in crop productivity due toinsects, diseases, drought, weeds, and soil fertility. Pod borers (Helicoverpaand Maruca), Fusarium wilts, viral diseases, Ascochyta blight and Botrytis graymold (Chen et al., 2011)

publication date

  • 2016
  • 2016