This division conducts research into the insect pest problems of CRIG's mandated crops (cocoa, coffee, cashew, shea and kola) and develops technologies to efficiently manage these pests in an environmentally sustainable manner. The division is also responsible for the thorough screening and evaluation of new insecticides and application equipment for the chemical control of insect pests of the mandated crops.

Current research activities
  • Studies on the biology, ecology and population dynamics of cocoa mirids.
  • Laboratory and field screening of insecticides for the chemical control of major insect pests of the mandated crops, and subsequent recommendation of the most appropriate insecticides for use by farmers.
  • Development of an Integrated Pest Management (IPM) strategy involving the use of cultural methods, sex pheromones, natural enemies (parasitoids and predators) for the management of cocoa capsids, as well as mealybugs.
  • Screening and recommendation of spray application equipment for use by farmers.
  • Studies on the incidence and population distribution of cocoa stem borers.
  • Studies on the incidence and population dynamics of cashew sap-sucking bugs and stem borers.
  • Investigations into the use of the predatory ant, Oecophylla longinoda as biological control agents against cashew sap-sucking bugs.
  • Research into increased pesticide residues in cocoa beans: underlying causes and management.
  • Reassessment of the pest status of cashew insect pests.
  • Education and sensitization of stakeholders on the management of insect pests of mandated crops.

The division collaborates with other scientific divisions at CRIG through the thrust multidisciplinary system, as well as other sister research institutions, universities, donor agencies and farmer groups in developing farmer centred, cost effective and environmentally friendly insect pest management strategies.