-12- 



Table 1. Comparison of P. crataegella captures on 20 x 30 centi- 

 meter* (cm) horizontal ( s t i cky - s i de - up ) traps of various colors 

 positioned 1.5 meters** (m) above ground in the interior part 

 of the tree canopy. 



One centimeter = 2.54 inches 

 One meter = 39.37 inches 



The next step in the development and utilization of a visual 

 trap was to evaluate the influence of the orientation of the trap 

 on its effectiveness in capturing P. crataegella . The orientations 

 tested were: (1) horizontal, sticky-side-up ; (2) horizontal, sticky- 

 side-down; (3) vertical; (4) 90 degree (tent- shaped) , sticky-side- 

 up; and (5) 90 degree (V-shaped), sticky-side down. Captures were 

 higher on the horizontal, sticky-side-up traps than on those with 

 the vertical or sticky-side-down orientations (Table 2). 



Table 2. Comparison of P. crataegella captures on 20 x 30 cm red 

 traps of various orientations, positioned 1.5m above ground 

 in the interior part of the tree canopy. 



Orientation of trap Average number P. crataegella per trap 



Horizontal, sticky- 

 side-up 131 



90° (tent-shaped) , 



sticky-side-up 85 



Vertical 12 



90° (V-shaped) , 



sticky-side-down 10 



Horizontal , 



St icky- side-down 5 



