Non-chemical methods for the management of pulse beetles-A review
SJ Prasanthi, Rajesh Kumar and MK Chakravarty
In tropics, pulse beetles, pose a major threat to stored legumes. Usage of chemical insecticides under storage is not safe for consumption and insects may develop resistance towards those insecticides. So there is an increased need to explore alternative and eco-friendly methods for the management of this pest. The use of plant extracts/oils is gaining importance in the present scenario as they are affordable, safer, and bio-degradable. A little research is done in the area of insect growth regulators against pulse beetles. Though many natural enemies against these bruchids have been reported, their effectiveness under storage conditions is yet to be exploited. Use of host plant resistance is economically sound technique and much lime light could be spread on developing resistant cultivars against major pests under both field and storage conditions. Solar drying/heating, usage of dehumidifiers, bio-thermal seed treatment devices, and hygienic storage structures could largely limit the infestation by pulse beetles. Much research could be done on the application of sterile insect techniques against these pests. In this review, different control measures as mentioned above are discussed in brief with an objective to focus on non chemical control measures of this pest.