348 



AGRICUIvTURE OF MAINE. 



The cocoon is dirty white, slender, about one-fourth inch long, 

 ribbed longitudinally by about six prominent ridges, oblong, 

 tapering at both ends, flattened on the side to which it is at- 

 tached. Usually fastened to the twigs and branches in groups. 

 (Fig. 14). 



Fig. 14. (After Riley.) 



The small moth has only about one-fourth inch expanse of 

 wings. Fore wings whitish, tinged with pale yellow and dusky 

 brown. (Fig. 14). 



This insect spends the winter in the pupa state in the cocoon, 

 usually attached to the twigs and branches of the host plant. 

 About the time the leaves unfold, the moths come forth and lay 

 their eggs upon the tender foliage. The larvae are full grown 

 in July. 



In September or October the cocoons in which the pupas 

 spend the winter are formed. The larvae feed externally upon 

 the foliage, the upper epidermis and pulp eaten away in patches, 

 the veins and lower epidermis intact. 



REMEDIES. 



Jar the trees when the larvae are full grown and they will 

 suspend themselves by threads and can be swept down by a 

 broom and killed by hot water or crushed. 



Apply kerosene emulsion with a spraying pump in winter, 

 to the branches that bear the cocoons. The same application 

 might be made for the first brood when the foliage is on. 

 eating insects. 



Spray with arsenical poisons (Formula 6) as for other leaf- 



