a greater negative impact on buildup of T. pyri Acknowledgments 



than on buildup of A. fallacis. We suggest, 



therefore, that growers who are considering 



releasing T. pyri to attain establishment do so 



only in blocks that will not be treated with 



pesticides that may be harsh on T. pyri, 



including pyrethroid insecticides, acaricides 



such as Carzol, and fungicides such as Ziram or 



EBDC-based materials. 



This work was supported by a USDA 

 Northeast Regional IPM Competitive Grant 

 and by State/Federal IPM funds. 



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Fruit Notes, volume 62 (Number 2), Spring, 1997 



