Project Coordinator:
Dr Tim Grout

Collaborating researchers and technicians involved:
Dr Tim Grout, Hendrik Hofmeyr, Dr Sean Moore, John-Henry Daneel, Peter Stephen, Wayne Kirkman

This project primarily concerns California red scale, Aonidiella aurantii and citrus psylla, Trioza erytreae, the vector of Huanglongbin or greening disease. The research focus on red scale is biocontrol and IPM. A means of rearing the indigenous parasitoid Aphytis africanus is under investigation and new horticultural mineral oils are evaluated periodically. Research on citrus psylla primarily focuses on alternative control strategies to systemic organophosphates. Citrus leafminer, Phyllocnistis citrella, is also included in this project but since indigenous natural enemies were found to suppress this pest, no further research has been required.