Minor Pests & Mites
Dr. Tim Grout
Different life stages of the predatory bug
This programme covers research on leafhoppers, woolly whitefly, leafrollers, citrus flower moth, citrus leafminer, fruit piercing moth and all pest mites. The potential for disrupting the biocontrol of pests and potential pests is investigated in this programme. Standard bioassay techniques have been developed for five indicator species: (1) Aphytis coheni; (2) Chilocorus nigritus; (3) Euseius citri or E. addoensis; (4) Trichogrammatoidea cryptophlebiae; (5) Coccidoxenoides perminutus. A database of non-target effects for these natural enemies to most chemicals used in citrus orchards has been developed. Classical biological control of the woolly whitefly is being pursued with the importation, release and now confirmed establishment of the parasitoid, Cales noacki. Management of hitchhiking oribatidulid mites through postharvest fumigation is also being investigated and their control in the orchard.