778 NEW YORK STATE MUSEUM 



(H. D. Lewis, Annandale) — The egg masses of both the forest 

 and appletree tent-caterpillars [Olisiocampa ameri- 

 e a n a, 0. d i s s t r i a] are very numerous, and the indications 

 are that these pests will be very destructive. Appletree bark 

 lice [Mytilaspis pomorum] and scurfy bark lice 

 [Chionaspis furfur a] are very abundant in this sec- 

 tion. Ap. 13. Tent-caterpillars appeared in large quantities 

 from Ap. 25 to May 1, and the forest tent-caterpillars were very 

 numerous about a week later. Both species will be fully as 

 abundant as last year, though the cool wet weather has held 

 them somewhat in check. May 18. Forest tent-caterpillars are 

 more abundant than ever before. Some orchard and shade 

 trees are being completely defoliated by them. The common 

 appletree tent-caterpillar, though numerous, does not appear to 

 be so abundant as last year. The rains have been so frequent 

 that it has been very difficult to keep insecticides on the trees, 

 and consequently these pests are not controlled even by the most 

 careful growers. May 24. There are large numbers of tent- 

 caterpillars of both species. Cutworms are very numerous, and 

 there are some plant lice of different species. The continuous 

 rains have made it very difficult to keep the immense numbers 

 of forest tent-caterpillars under control. June 1. Potato 

 beetles [Doryphora 10-1 i n e a t a] are just appearing in 

 considerable numbers. Tent-caterpillars are beginning to spin 

 their cocoons, after having caused more injury than ever before. 

 I have noticed robins picking open the cocoons and devouring 

 their contents. Striped squash beetles [Diabrotica vit- 

 t a t a] are quite abundant. Injury by the plum curculio 

 [Conotrachelus nenuphar] is apparently much less 

 than for many years. June 17. Fall webworms [H y p h a n- 

 tria cunea] are just making their appearance. Potato 

 beetles are more abundant than they have been for years. 

 June 29. Trees that were defoliated by tent-caterpillars have 

 developed new foliage. Many of the cocoons of the forest tent- 

 caterpillar appear dead and shriveled, but no moths have been 

 seen in this vicinity. July 19. Red-humped appletree worms 



