Table 2. Average percent injury by early season insects pests in second-level and first-level IPM 

 blocks in 1994* 



Type of block 



TPB 



PC 



HAS 



GFW 



Total 



*Mcans in each couplet in each column followed by a different letter are significantly different at 

 odds of 19:1. Two hundred fruit of each cultivar present in each second-level block were sampled 

 at harvest in both second-level and first-level blocks. All blocks contained at least one of the 

 following cullivars, and some contained up to four of these: Mcintosh, Cortland, Delicious, 

 Empire, Golden Delicious. Average number of fruit sampled per block - 500. When sampling a 

 cultivar for early-season fruit pests, we examined 10 fruit on each of 20 interior trees. TPB = 

 tarnished plant bug; PC = plum curculio; HAS = European apple sawfly; GFW = green 

 fruitworm. 



Fruit Notes, Winter. 1995 



