I? 





140 1 

 120- 

 100 



80 



60 



40 



20 

 



■ woods 

 D hedge 

 Dopen 



TRAP CAPTURES 



E 



r 



.2, * 



= 9 



FRUIT INJURY 



Figure 6. Total captures of PC's on perimeter-row traps and PC injury to perimeter-row fruit in blocks 

 of apple trees whose front rows bordered woods, hedgerow, or open field (four blocks of each type). 



in blocks having Gala, Jonagold, or Fuji as perimeter- 

 row cultivars, compared with blocks having Mcfritosh 

 or Empire as perimeter-row cultivars. The average 

 number of insecticide sprays applied against PC was 

 the same in each case (2.7). 



Figure 6 shows that PC captures by all perimeter- 

 row traps combined were greatest for blocks bordered 

 by woods, intermediate for blocks bordered by 



hedgerows, and least for blocks bordered by open field. 

 However, PC injury to perimeter-row fruit was greatest 

 for blocks bordered by open field. The average number 

 of insecticide sprays applied against PC was about the 

 same in each case (2.8, 2.8, and 2.5, respecfively). 



Figure 7 shows that season-long PC injury to fruit 

 on perimeter-row trees (row 1) averaged about 12 times 

 greater than on trees of interior rows 3, 5, or 7. 



U 



Oh 



S 



a 



ROW 



Figure 7. Mean percent PC-injured fruit on perimeter-row trapped frees(row 1) compared with injury 

 on non-trapped trees of interior rows 3, 5, and 7. 



Fruit Notes, Volume 67, Winter, 2002 



21 



