curculios per container remained alive during 

 the course of an experiment. 



In the first experiment, three containers of 

 same-sex curcuhos were attached 8 inches 

 above ground to the wings of pyramid traps, 

 one container per wing. Traps were placed mid- 

 way between trunks and perimeters of 

 unmanaged apple trees from May 23 (full 

 bloom) until June 12. Results (Table 1) show 

 that traps baited with "check" containers 

 devoid of curculios captured similar numbers of 

 curculios than traps baited with live males or 

 live females. 



In the second experiment, one container of 

 curculios was affixed to an open-trap boll weevil 

 trap top capping a p5rramid trap in such a way 

 that odor could move fi"om the container of 

 curculios through the boll weevil trap top and 

 down onto the pyramid. Traps were placed 

 mid-way between trunks and perimeters of 

 unmanaged apple trees from June 13 until 

 June 21. Results (Table 1) show that traps 

 baited with "check" containers devoid of 

 curculios captured similar number of curculios 

 than traps baited with live males or females. 



In the third experiment, one container of 



curculios was affixed to a boll weevil trap top in 

 the same manner as in the second experiment. 

 Then, each was placed on the end of an upright 

 twig at mid-height in the canopy of an 

 unmanaged apple tree from May 23 until June 

 21. Results (Table 1) show that few plum 

 curculios were captured by any of the traps, 

 with no significant differences in captures 

 among traps baited with males, females, or 

 empty traps. 



Apples as Odor Sources. Apples used as 

 odor sources were either mature Fuji apples 

 stored over winter under refrigeration and 

 washed thoroughly before use or immature 

 Mcintosh apples (about 2/3 inch diameter) 

 attached to freshly cut unsprayed branchlets. 



In the first experiment, 16 whole mature 

 Fuji apples were distributed evenly on the 

 ground at the base of each pyramid trap. Traps 

 were placed mid-way between trunks and 

 perimeters of unsprayed apple trees from May 

 21 (early bloom) until June 1. Results (Table 2) 

 show no enhancement of trap captures by 

 additions of whole mature apples at bases of 

 pyramid traps. 



In the second experiment, a 2-inch wedge 



10 



Fruit Notes, volume 62 (Number 1), Winter, 1997 



