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October 15, 1900, peelings from a very badly infested pear were 
placed against and around the base of a very young peach tree, and 
on 26th of same month these were renewed. July 9, 1901, no scale 
could be found on the tree. 
October 15, 1900, six badly infested plums were placed 4 inches 
from base of a young apple tree, and two infested apples were placed 
in similar proximity to another young apple tree. July 9, 1901, no 
scale was to be found on either tree, previous inspections by others 
having given the same results. 
October 15, 1900, six infested plums were placed against the base of 
a young apple tree; an infested apple was placed against the base of 
another tree, also young; an infested pear was placed against the base 
of a young peach tree, and eleven days later another infested pear 
was placed against the base of this last tree. Up to July 9, 1901, none 
of these trees carried a single San Jose seale, so far as could be learned 
from repeated observations by different entomologists. 
As indicating the activity of San Jose scale on fruit, during the 
period between October 15 and November 2, 1900, the following obser- 
vations are of interest: October 9, 1900, a couple of windfall apples, 
very badly infested by San Jose scale, were placed under observation. 
October 13 young scale were alive and very active on both apples; on 
18th one apple was nearly decayed and many of the females were 
dead, five, however, remained alive and contained living young; 19th, 
live females and active young found on both apples; 22d, one apple 
decayed, the females dead, and apple discarded, the remaining apple 
carried living females, but no young were observed. November 2, 
1900, the remaining apple carried living females, but by 16th this 
apple also was decayed and the seale all dead. 
In this connection it must be remembered that it was only after 
repeated attempts to introduce the San Jose seale in the insectary, by 
fastening sections of badly infested limbs to young trees growing 
therein, that we were able to succeed. While the foregoing does not 
and could not prove that infestation may not originate from infested 
fruit, it does show the great difficulty in causing it to do so. 
In all of our microscopical examinations of scale insects Aphelinus 
Juscipennis has been found but twice, in both cases in San Jose seale. 
Pentilia misella is, however, on the increase. 
The plum tree mite (Phytoptus phleocoptes) seems to occur gener- 
ally wherever the Damson plum is grown, as it has been observed or 
sent from all quarters of the State. Serious damage was this year 
reported from Wellsville. 
Trirhabda tomentosa was observed in the act of defoliating young 
prickly ash (Xanthoxylum americanum) in August, in some cases the 
trees dying from the effects of these beetles. 
Ischyrus nigrans has been reared from a species of Agaricus. 
Anthaxia viridifrons, Eupristocerus cogitans, Sinoxylon basilare, 
