Female Apple Maggot Captures and Injury to Unsprayed Apples123
- 14 October 1978
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 71 (5) , 755-756
- https://doi.org/10.1093/jee/71.5.755
Abstract
The amount of injury by Rhagoletis pomonella (Walsh) in unsprayed apple orchards was not related to the number of female captures on Pherocon® AM traps. Injury was greatest in the orchard with the most captures, but weekly estimates of injury were not proportional to weekly female captures. No injury occurred until at least 3 wk after the 1st capture which indicates that the 1st spray does not need to be applied within 7 days after 1st capture as presently recommended. Sprays will be necessary at low levels of adult prevalence to provide maggot free fruit.This publication has 0 references indexed in Scilit: