EXPERIMENT STATION REPORT. 6ri 



massed. There were no active larvse, but there were white sets 

 in some number, and yet some breeding adults. The fohage 

 that had been sprayed with caustic soda was no worse than 

 when examined on the 19th, and none seemed to have dropped; 

 certainly no permanent injury had been caused. 



June 28th, all save a few of the fruits were taken off to pre- 

 vent injury from raiders. Some 150 or more fruits were taken 

 off, a goodly portion of which would, undoubtedly, have devel- 

 oped. July 8th, though the conditions were not vei-y bad, it 

 was deemed best to spray with the horticultural compound, 2 

 ounces in i gallon of water. This caused some burning of the 

 foliage near the center, but killed off most of the scales, so that 

 not until the end of August was there any general re-infesta- 

 tion, which increased all through September. OcTober 14th, 

 sprayed with Kill-O-Scale, i part to water 20 parts. November 

 2d, about half the foliage was off, and the balance looked ready 

 tO' come off. The tree as a whole was very scaly, and some 

 parts of it as scaly as they could well be. There were no lai^vae 

 and no recent sets ; the old scale came off everywhere in great 

 flakes, showing no life beneath, and such black scales as were 

 lifted on the new wood had only dry or cotllapsed insects beneath 

 them. Traces of the oil were obvious everywhere, and there 

 is no' doubt that the insect was severelv checked b-' the October 

 application. The tree goes intO' the winter more free from 

 scale than in 1903, but also much more injured by ihe summer 

 development, so that the prospect is for a considerable winter 

 killing of the worst infested branches. 



Tree 9. — Taken out in 1903, and not replaced. 



Tree 10 — Greensborotigh Peach. March loth, w^as thor- 

 oughly drenched with the "Universal Insecticide and vScale 

 Killer." 



April 17th the buds began to swell, and it seemed as if there 

 would be a heavy bloom; but development ceased, and, on the 

 26th, when the leaf buds began to put out, it became obvious 

 that the flo-wer buds were dead. May 7th the leaf 1 uds began 

 to develop irregularly, and branches to shrivel up, until, on the 

 7th, it was found it would be only a cripple at best. June 8th 

 it was more than half dead, and was taken out a fevv' days later. 



This case is very like that of No. 6, which acted the same 

 wav, but was treated with caustic soda instead of scale killer. 

 The indications from the twO' records point to the winter as 

 the proximate cause of the death of both trees. 



Trees it, 12. 13 and 14 are out, not to be replaced. 



