554 NEW YORK STATE MUSEUM 



arsenic has served to keep them off the leaves but they go into the 

 ground and attack the stalk. Squash bugs [Anasa tristis] are 

 also abundant. Four lined leaf bug [Poecilocapsus lineatus] 

 is doing much damage to currants, specially to young plants. June 15. 

 Wire worms have been very destructive the past two weeks to cabbage 

 and cauliflower. No evidence of second brood of pear psylla or of the 

 currant worm [Pteronus ribesii]. White arsenic has been more 

 effective in spraying than paris green. July i. The pear psylla has 

 begun to appear. The first brood was very light, scarcely an adult to be 

 found, but the dry weather has been favorable to the hatching of every 

 egg. The trees have been sprayed with 8% of kerosene, but as the 

 insects are covered each with a globule of honeydew, the insecticide is 

 very ineffective. If dry weather continues, the pear crop will be ruined. 

 July 5. Timely and heavy showers have done much to check the pear 

 psylla; spraying with kerosene emulsion, i to 15, is more effective im- 

 mediately after a rain. Apple aphis is persistent. Lady bugs very abun- 

 dant. Fall web worm [Hyphantria cunea] is now working. 

 July 14. Fall web worm begins to show its work on fruit and forest 

 trees. Apple aphis is very persistent, injuring many trees. July 28. A 

 few late caterpillars [possibly Clisiocampa disstria, though 

 more likely Datana ministra or Schizura concinna] 

 are found on the apple trees. Apple aphis still persistent. Aug. 12. 

 Borers [probably Saperda Candida] unusually numerous and 

 active in apple and quince trees. Large numbers of eggs have been 

 -deposited and as many as 30 young larvae have been taken from a tree. 

 Aug. 17. 



Delaware county (F. M. Simpson, Delhi) — Forest tent caterpillar 

 [Clisiocampa disstria] in the sugar maples and causing much 

 injury. They attack trees set out last year and completely defoliate them. 

 Old trees suffer very much. The caterpillars begin in the upper branches 

 and denude the limbs. Some trees have been protected by shaking the 

 caterpillars from them and fair results have been obtained by spraying 

 with paris green and water. May 25. Forest tent caterpillar still working 

 havoc in this village and vicinity. June 2. I find that the groves of 

 maples where the trees were partly defoliated by the forest tent cater- 

 pillar are completely destitute of leaves, while the foliage is still green on 

 trees that were not attacked. Sep. 30. 



Dutchess county (H. D. Lewis, Annandale) — Cold weather has 

 somewhat checked insect activity, but even taking this into consideration, 



