A survey of Massachusetts grower knowledge and the adoption of 1PM was 

 administered to a statistically valid sample of Massachusetts commercial 

 fruit growers under the direction of Kathleen Leahy. This survey was pat- 

 terned after a National IPM Impact survey, coordinated by Virginia 

 Polytechnic Institute, which is presently nearing completion. The results 

 of the Massachusetts survey are being analyzed and will be reported in a 

 later issue of Fruit Notes . 



Research and adaptive studies performed in support of the Apple IPM 

 Program in 1985 included: trials of fungicides, insecticides, and miticides 

 which are, or ultimately may be, a component of commercial spray programs; 

 evaluation of pesticide effects on mite predators; evaluation of disease- 

 reristant apple cultivars; measurement of drift from ground spraying of 

 orchards (in cooperation with Dr. John Clark, Dept. of Entomology); evalua- 

 tion of the efficacy of a Canadian-manufactured, non-sticky, pheromone trap 

 (in cooperation with entomologists from Mew York, Ontario and Quebec); study 

 of responses of plum curcul io to odor and visual clues (the second year of 

 study); analysis of optimum timing of pesticide application against tar- 

 nished plant bug (tlie sixth year of study); continued studies of apple 

 blotch leafminer behavior and monitoring; continued analysis of apple maggot 

 fly orientation to visual and odor cues in traps; and statewide survey of 

 the impact of problem pyrethroid sprays on spider mite predators. 



Insect/Mite Pest Status and Harvest Injury, 1985 » 



Table 1 contains results of extension IPM harvest surveys performed in 

 1985, and compares these to statewide averages of insect harvest injury sur- 

 veys performed by extension and private-sector scouts from 1978-1984. 



Table 1. Percent insect- i njured fruit in on-tree surveys of 12 commercial 

 orchard blocks, 1985, compared to orchard harvest injury averages. 



TOTAL INJURY 3. 61 3-56 



Data collected by sampling 100 fruit per tree (Low in, low out and top of 

 tree canopy) on 6-12 trees per block. 



