MAINE AGRICULTURAL EXPERIMENT STATION. 5 1 



REMEDIES. 



Pull off and burn the withered clusters of leaves containing 

 the caterpillars and chrysalids early in spring. Spray with 

 arsenate of lead when the flower clusters first appear and again 

 just before the blossoms open. A third spray just after the 

 blossoms drop is sometimes necessary. 



Leaf Sewer. 



(Ancylis nubeculana.) 



The leaf is folded along the mid rib, the two sides being 

 brought together, the caterpillar constructing its nest within 

 (fig. 22). The winter is passed in the larval condition in the 

 folded leaves which lie on the ground. In April the larvae 

 transform to pupae and about 10 days later the moths begin to 

 appear, laying eggs in June. The caterpillar is about \ inch 

 in length when full grown, yellowish green, with yellow head, 

 and horny shield on the next segment a little darker, with a 

 black dot on each side. On each of the remaining segments 

 there are some pale, shiny, raised dots (tubercles) from every 

 one of which arises usually a single hair. 



Fig. 22. (From Me. Ag. Exp. Sta. Bui. 177). 



In the perfect state this insect is a small white moth with 

 brown markings with an expanse of wings of about | inch. 



REMEDIES. 



When the injury to the tree is serious the fallen leaves may 

 be raked up and burned in the autumn to restrict the develop- 

 ment of the moth the following season. 



Well cultivated orchards have little to fear from this insect. 



