EXPERIMENT STATION REPORT. 637 



of water. Next day no moving larvae were seen, and it was hoped 

 that a good effect had been obtained. A week later, however, all the 

 fruit was horribly infested and larvse and recent sets abounded : only 

 the moving larvae had been affected by the spray, and breeding had 

 not been even checked. July 31st, sprayed with arsenate of lead, one 

 pound in twenty gallons of water, as against codling moth and leaf- 

 feeders generally. On the 22d, sprayed with fish-oil soap, one pound 

 in six gallons of water, and applied a drench aimed especially at the 

 fruit. July 26th, quite a number of the leaves showed a scalded 

 effect, especially at the edges, but this injury did not intensify, and 

 there was a lessening of larvse and recent sets, which, however, was 

 due to an intervening period of breeding rather than the insecticide. 



August 19th, the fruit was so marred that it was commercially 

 valueless, and a new brood of scale larvffi was present in countless 

 numbers. In the evening, sprayed with fish-oil soap, one pound in 

 about six gallons of water, until every leaf dripped, and I believe every 

 twig and branch was reached. Next day the tree smelled fishy, but 

 there was no apparent injury to foliage, nor was there any lessening of 

 scale larvse, which literally swarmed everywhere. 



August 21st, sprayed with a kerosene-resin mixture at the rate of 

 one part in fifteen parts of water. This was an experimental material, 

 not well combined, and which did not dissolve well in the spraying 

 tank. The last part of the mixture applied seemed almost pure 

 emulsion, and I tried to dilute this by inunediately spraying clear 

 water. On the 22d the foliage was pretty well blackened, especially 

 where the settlings had hit, and while a good result had been obtained 

 against the scale, the leaves had been seriously injured. Injury in- 

 tensified during the next few days, and on the 26th many of the 

 leaves were dead, either black or yellow, as if touched by frost, while 

 the fruit was made absolutely useless. September 13th, much of the 

 foliage was off, the remainder scalded. All save a few badly-speckled 

 fruits were off and on some branches the scale seemed dead; there be-. 

 ing plenty left, however, at other points. 



October 1st, most of the foliage was off, scale was swarming and 

 there was one bunch of blossoms near the top of the tree. On the 

 24th the foliage was nearly all gone. There was much dead wood 

 in the tree and it looked and was a serious case. Applied "Scalecide" 

 at the rate of one part to water twenty parts and gave a very fair 

 covering in spite of the high. wind. 



