Results from both 2000 and 2001 show that orchard 

 blocks that have woods or hedgerow as adjacent habitat 

 are subject to higher AMF pressure than blocks 

 bordered by open field. Orchard blocks that bordered 

 an open field had consistently lower fly captures than 

 blocks that bordered either woods or hedgerow 

 (habitats that typically support wild host plants). 



Based on our findings, it appears that odor-baited 

 red sphere traps are effective in preventing AMF 

 penetration into orchard blocks when they are spaced 

 at 10 m apart on the perimeter row, especially when 

 baited with blend. Regardless of cultivar type, the blend 

 bait appears to be better than the BH bait at preventing 

 flies from penetrating into the interiors of orchard 

 blocks. In 2002, we plan to evaluate further the 



capability of different odors on perimeter-row traps for 

 intercepting wild AMF immigrating into commercial 

 orchards. 



Ackno yvledgm eiits 



We are grateful to the following growers for 

 participating in this study: Keith Arsenault, Gerry 

 Beime, Bill Broderick, Dave Chandler, Tom Clark, Don 

 Green, Tony Lincoln, Joe Sincuk, Mo Tougas, and 

 Steve Ware. This work was supported by Massachusetts 

 State Integrated Management Funds, Northeast 

 Regional Competitive Integrated Pest Management 

 Funds, and Northeast Regional Sustainable Agricultural 

 Research and Education Funds. 



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24 



Fruit Notes, Volume 67, Spring, 2002 



