14 



FARMERS' BULLETIN 843. 



cent of the Schley variety were injured by this insect, but the orchard 

 in question was adjacent to a 250-acre woodland containing many 

 native hickory trees the nuts of which were infested severely. No 



FIG. 12. The pecan weevil (Balaninus caryae): Exit holes of larvae in pecan nuts. 



doubt the serious infestation of the nut crop in this orchard was 

 in a large measure attributable to the close proximity of hickory 

 trees. Another grower in Georgia reported extensive damage to 

 Rome and Stuart varieties of pecan, and in one locality in Louisiana 

 this weevil is reported to have caused a loss of 65 per cent of the 

 pecan yield. 



Although this insect is distributed very widely throughout the 



country, occurring on 

 both the wild and cul- 

 tivated pecans as well 

 as native hickory nuts, 

 thousands of acres of 

 pecan orchards have 

 not yet suffered any 

 loss from attack, so 

 far as is known. One 

 grower in Georgia 

 found that out of a 

 crop of 48,000 pounds, 

 so far as he observed, 

 not a single nut was 

 affected by the weevil. 

 Similar reports have 

 been received from 



\ 



FIG. 13. The pecan weevil: Adult male at left, adult female at right, large pecan growers in 

 Enlarged. 



