BLUEBERRY CULTURE 



11 



Insects and Diseases 



The cranberry fruit worm, Mineola vaccinii Riley (5) sometimes attacks blue- 

 berries. The mature worm is about one-half inch long. It has a yellowish 

 head and a green body often tinged with red on the back. Several berries are 

 often webbed together and the worm works among them. No control has been 

 found for this insect but it has not yet become a serious blueberry pest. 



The cranberry weevil, Anthonomus musculus Say, is sometimes a serious 

 blueberry pest. The adult is a long-snouted beetle similar to the plum and 

 apple curculios but smaller. The larva is a legless whitish grub with a yellow 

 head and is about one-ninth of an inch long. Some injury is done to the flowers 

 by the feeding of the adults, but most of the injury is done by the larva feeding 

 on the fruit and tender young foliage. This insect can be controlled by spraying 



Figure 4. Rubel — After Pruning. 

 (a) Desirable new shoots growing from the base of the plant. 



