300 PESTS OF ORCHARD AND SMALL FRUITS 
remedy is to apply arsenicals early to poison the worms. The second 
brood, if serious, can be controlled only by applying arsenical poisons. 
Fic. 449.—The Blackhead Cran- Fic. 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 yellow head. It works in the same manner, webbing 
up the tips and destroying or killing 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 
Fic. 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. 
