2 - 



adults the following year. Although we are not certain if this is so in 

 Massachusetts, a percentage of WHF pupae may remain in the soil until one or 

 two years later, as is the case with R_^ pomgnel la and R^ mendax, and with 

 another member of the walnut husk fly complex, R_^ juglandi s Cresson (l). 



WALNUT HUSK FLY 



Diptera: Tephritidae 



(after Calif. Ext. Serv. Cir. 87) 



Figure 1 . Walnut husk fly. From R.E. Berry. 1978. Insects and mites of 

 economic importance in the Northwest. O.S.U. Book Stores, Corvallis, OR. 



INJURY TO PEACH 



In Granville, injured peaches were found on 15-year-old trees (cv. 

 Jersey Queen) in a 3 acre block surrounded on all sides by thick forest, 

 with oak, pignut hickory, and shagbark hickory predominating. Several 

 mature hickory trees were seen, but the nut crop was low to nil. 



Although Jersey Queen peaches are moderately hairy, WHF injury was 

 relatively easily seen and appeared similar to egglaying punctures caused by 

 apple maggot fly on apples. Often, a 2 mm area around the oviposition site 



