REPORT OF THE STATE ENTOMOLOGIST 1902 129 
several limbs killed by the oil, but the others were apparently 
all right. A Kieffer peartree was in excellent condition and 
had a little fruit. One Dutchess pear was apparently unin- 
jured and bore no fruit, while another would produce some. 
Practically the same results were obtained on Beurre d’Anjou 
and Vermont Beauty peartrees. The Meeches prolific quince- 
trees bore out the promise of an earlier date and gave no evi- 
dence of having suffered in the slightest from the application. 
A yellow Gage plum was in excellent condition but bore no 
fruit, and the same was true of a natural cherry, except that it 
had a little fruit. A Magnum Bonum plum was in excellent con- 
dition and bore considerable fruit. 
An examination of the apple orchard June 12 failed to reveal 
a single living scale insect; and, though some of the trees had 
developed adventitious shoots, their occurrence could hardly be 
attributed to the use of the oil, since they were almost equally 
common on the trees sprayed with whale oil soap. The plum- 
trees sprayed with the crude petroleum also developed a con- 
siderable number of adventitious shoots, and it is possible that 
they were injured by the oil, though such is not necessarily the 
case. 
An examination of these trees Nov. 11 by my assistant, 
Mr Walker, showed that a few were very badly infested by the 
scale, that some were badly infested and that several were 
dead. The owner, since the treatment of the previous fall, had 
set a number of new trees in vacant places. Most of these and 
some of the ethers were in good condition. 
In passing judgment on this experiment, it should be remem- 
bered that no treatment whatsoever was given after the spraying 
in December, and that, before the end of the season, the few 
scale insects which presumably escaped destruction had an 
excellent opportunity to multiply. Up to the middle of the sum- 
mer at least there were very few living scale insects to be seen 
on these trees ; and we can not help feeling that, while the insects 
are now abundant on a number of the trees, the application 
proved very efficient and was perhaps as effective, though some- 
what injurious, as any spray which could be applied. 
Good’s caustic potash whale oil soap no. 3. This insecticide was 
applied at the rate of 2 pounds to the gallon to 315-28 and 
