EXPERIMENT STATION REPORT. 615 



females seemed tc have been uninjured. Nevertheless, the re- 

 sult of the application was a severe check to the insect, and not 

 until August 19th was another application made of the same 

 material, at the same strength. The rain following" imme- 

 diately thereafter interfered with the result, and, on August 

 29th, a third spraying was made with the horticultural com- 

 pound. Though this was more effective, it was only a tem- 

 porary check, and, on September i6th, sprayed with ec^ual parts 

 O'i water and a soluble petroleum, the application being made 

 less thoroughly than 011 Nos. 19 and 21. Sepitbmber 19th 

 many of the adults were dead, but many were yet alive; there 

 A\ere some crawling larvae and some white sets. The bark, 

 where the application was properly made, had a dark greasy 

 appearance, the leaxes w^ere more or less glossy, some of them 

 had turned black, and a few had dropped. Injmy had intensi- 

 fied September 26th, and more leaves had dropped ; while, on 

 the other hand, the effect on the scales had not increased. Octo- 

 ber 15th, there were a few live adults, a few white sets, an 

 occasional crawling larva and quite a lot of live half-grow'n 

 forms. 



November 2d, the foliage was all gone, the tree was pretty 

 generally infested, and in some places the scale coating was 

 heavy. Most of the insects have been killed; but around the 

 branching of the small twigs there are plenty yet left alive. There 

 seemed to be a question whether there has not been some injury 

 toi the buds ; but it was too early to determine that. It should 

 have been said that a small crop of verv nice fruit ripened during 

 September. 



T'RKE 19 — J'cniioiit Beauty Pear. April 5th, sprayed very 

 thoroughly with Salimene, i poimd in i gallon oi v/ater. 



April 26th, leaf buds were pointing out all over the tree; May 

 7th, a few blossoms were open; May nth, was in full bloom, 

 and May 17th, was almost out of blooin. June 27th, the tree 

 was doing well and had made a fair set of fruit, \vhich was 

 developing nicely. There was a small set O'f scales, many of 

 them dead, but some producing young", quite a number of which 

 had set, and had already found their way upon the fruit. July 

 5th, spraved thoroughly with the hoi'ticultural compound, 2 

 ounces in i gallon of water. On the 7th, examined rather 

 carefulh'. and found no- moving larvae, most white scales col- 

 lapsed, but none of the half-grown sets nor reproducing adults 

 injured. Nexertheless, there was a check to the breeding", and 

 a new application was nt)t considered necessary until .Vugust 29th, 



