300 PESTS OF ORCHARD AND SMALL FRUITS 



remed}'- is to apply arsenicals early to poison the worms. The second 

 brood, if serious, can be controlled only by applying arsenical poisons. 



Fig. 449. — The Blackhead Cran- Fig. 450.— Adult of the Blackhead Cran- 

 berry Worm. Enlarged and natural berry Worm. Enlarged and natural 

 size. Original. size. Original. 



The Yellowhead Cranberry Worm {Peronea (Acleris) minuta Rob.) 



The larva of this species is quite similar in appearance to the pre- 

 ceding, but has a yelloAV head. It works in the same manner, webbing 

 up the tips and destroying or kilhng the foliage within. 



The winter is passed as an adult moth. The most practical means of 

 control is to hold the water in the spring so as to force these adults to 



Fig. 451. — Adult of the Yellowhead Cranberry Worm. 

 Enlarged and natural size. Original. 



lay their eggs elsewhere. On infested bogs reflowing for 48 hours will 

 kill the worms. There are three broods annually. Spraying or dust- 

 ing with arsenical poisons is effective, if done early. 



