Optimizing control for leafrollers and Western tentiform leafminer

Author: Vincent P. Jones, Peter W. Shearer

Published: 2020

Summary: The biological control of western tentiform leafminer (Pyllonorycter elmaella) was found to be susceptible to disruption in organic orchards when Entrust was sprayed in early-mid May. These treatments resulted in very high levels of damage and also affected biological control of the white apple leafhopper, Typhlocyba pomeria.

Keywords:

• Apple
• Crop Protection
• Biological Control
• Phyllonorycter elmaella
• WTLM phenology model
• Pholetesor ornigis
• Pnigalio flavipes
• Pesticide upset
• Typhlocyba pomeria
• Western tentiform leafminer