EXPERIMENT STATION REPORT. 621 



entirely removed. Some specimen fruits were a]lo\ve(l to de- 

 velop, and were matured in late September. 



June 27th, there was a heavy set of white scales, and it was 

 obvious that the March application had been ineffective. On 

 the 30th, sprayed with the Pyrol tree and plant spray, i part to 

 water 40 parts, and drenched thoroughly. As that d'd no't seem 

 to have any immediate effect, sprayed. July 8th, with the horti- 

 cultural compound, 2 ounces in i gallon of water, and that 

 arrested the further development. August i8th, there were a 

 few adults ; there was a thin scattering of w'hite scales, and there 

 were some active larvae. Although hardly necessary, I sprayed 

 with the horticultural compound as before and, after the wash- 

 ino- rains, duplicated the application, August 29th. For a few 

 days this seemed effective; but then every day added to the 

 infestation at a rate greater than earlier in the season, and, on 

 October 14th, sprayed with Kill-O-Scale, i part to water 20 

 parts. October 20th, the leaves were quite a little burned, but 

 living scales were almost wanting, except near the ends of the 

 branches. 



November 2d most of the foliage was off, and the Ixdance dry 

 and discolored, the discoloration without doubt due to the in- 

 secticide. The wood throughout shows signs of the oil, in the 

 dark color and general greasy appearance. There is plenty of 

 scale on the tree, Ijut most of it is dead, except at the base of the 

 twigs and spurs. There has been no penetration into the form- 

 ing buds. 



Tree 31 — Gcnium- Prune. March loth, was found to be 

 moderately infested, and received an application of the Universal 

 Insecticide and Scale Killer. 



Buds did not show until April 26th, but after that the advance 

 was rapid, and. May 7th, was leafing out CA^erywhere, and a few 

 blossoms were already open. There w^as a good bloom, but 

 irregular, petals beginning to drop May 17th, when some buds 

 were yet unopened. Only a small set of fruit was made, which 

 was promptly attacked by the Curculio, and, eventually, less than 

 a dozen verv fine fruits came to maturity. 



June 27th, on the general examination no larvae nor recent 

 sets were found, but plenty of adults, ready to reproduce. July 

 8th, so ma.iy cl tiic young had set that it was deemed v.-Jse to 

 spray with the horticultural compound, 2 ounces in 1 gallon of 

 water. This' seemed to dispose of all the then recent sets; but, 

 July. 13th, there were more larvae and more sets Development 

 was not rapid, however, and, though at every examination larvas 



