horticulture.ucdavis.edu/informatio...boost-yield
Insect pests reduce crop yield by attacking crops and by transmitting diseases. Access to training and information on the effective use of pesticides can be rare for many smallholder farmers. As a result, farmers often sell damaged produce or use high levels of pesticides, which can be dangerous to both farmers and consumers and can increase insect resistance to pesticides. Pest-exclusion nets can have a major impact in addressing many of these problems.