New York Agricultural Experiment Station. 377 



barrels where they continue to feed, occasionally doing considerable 

 damage. The larvae are small, flesh-colored caterpillars, measuring 



about three-eighths of an 

 inch long and are easily 

 confounded with those of 

 the codling moth. The 

 moth is about one-fourth 

 inch long, generally of a 

 rusty red color with black 

 and grayish markings. 



Remedies. — The insect 

 is controlled by the same 

 treatments as recom- 

 mended for the codling 

 moth. 



Fig. 50. — Palmer Worm Moth. 



PALMER WORM. 



Ypsolophus pometellus Harr. 



This is another caterpillar which in occasional years causes severe 

 injury to fruit and foliage of apples. It skeletonizes the 1 eaves and eats 

 large irregular holes in the fruit. (Plate XXVII, fig. 3.) The larv« 

 appear in early June and work over a period of about three weeks. 

 When disturbed they are very active creatures and drop suddenly 

 from the leaf or fruit, suspending themselves in midair by a web. 

 The adults appear in July. (Fig. 50.) 



Treatment. — The insect is not im- 

 portant in orchards that are regularly 

 sprayed. The applications of arsenate 

 of lead for the codling moth just after 

 blossoming and two or three weeks later 

 afford complete protection from injury. 



PLUM CURCULIO. 



Conotrachelus nenuphar Herbst. 

 This insect is largely responsible for 

 wormy plums and peaches. It also causes 

 deformed and knotty apples and pears. 

 The adult is a small gray beetle that 

 passes the winter under the bark of trees 

 or under rubbish. This insect appears 

 early in spring and deposits its eggs in 

 young fruits. (Fig. 51.) The egg is in- 

 serted under the skin, after which a 

 crescent-shaped cut is made around one 

 side of the puncture, as in Fig. 52. Egg 

 two months. 



Fig. 



51. — Plum Curculio an t » 

 Work on Fruit. 



laying continues for about 



