To protect the crops from the insect-pest and (locust menace), use powder of chilli (Capsicum annuum) as a seed treatment at the time of sowing. The chilli powder increases the resistance in the crop against insect-pests and (locust menace)
Formulation: Powder of chilli (Capsicum annuum)
Ingredients: Powder of chilli (Capsicum annuum)
"Homemade chili powder sprays can protect plants against insects and other pests that may be eating the garden. Chili powder spray won't kill all insects, but the spray will repel most insects and other pests that eat garden plants. It should not be sprayed directly on fruits, vegetables or herbs meant for the table as they could end up tasting like chili powder. Limit the spray to nonedible leaves." [Homemade Chili Powder Sprays as Insecticide]
https://homeguides.sfgate.com/homemade-chili-powder-sprays-insecticide-86195.html
"Effects of chilli on insects. Chili contains an active substance called capsaicin which is the reason for their hot taste and their use in spices. Chilli is a strong feeding deterrent to a lot of insects." [making chilli pesticide, Employment Oriented Skills Development Project - Skills Training Resource Unit ]
http://www.education.gov.pg/TISER/documents/students/short-courses/making-home-made-pesticide-making-chilli-pesticide.pdf