"The question as to the effect of the calcium arsenate, as used 
for controlling the blueberry maggot, upon birds, rabbits, deer, and other 
wild life has caused considerable discussion among blueberry growers and 
others associated with the blueberry industry," according to L. C. McAlis— 
ter, jr., of Cherryfield, Me. "In an attempt to answer this, a cage: 
containing two young domestic rabbits and a pen of four chickens was 
placed on a heavily dusted area of blueberries. The blueberries re- 
ceived three applications of calcium arsenate at the rate of 8 pounds 
per acre. The first application was made on July 6, the second on July 
13, and the third on July 20. The rabbits and chickens were placed on 
the berries on July 14, The cages were moved every day to a new loca=- 
tion, so that the animals were constantly in contact with a fresh source 
of arsenic. The animals were fed on a restricted diet so as to force 
them to feed on the blueberries. * * * The chickens consumed all of the 
berries and much of the foliage in their cage every day, and the rabbits 
not only ate the berries but also ate most of the blueberry plants. On 
August 16, after having fed for over a month on the heavily dusted ber-— 
ries, the animals were removed because the berries were being picked on 
that land. None of the animals suffered any ill effects from the cal- 
cium arsenate. The rabbits appeared to be more vigorous and in better 
health than before they had fedon the dusted blueberries. The chick- 
ens had actually gained one-half to three-fourths of a pound each 
as a result of feeding on the heavily dusted blueberries. While the re- 
sults of this test may not apply to the wild animals, they do show that 
the calcium arsenate as used in the control of the blueberry maggot is 
harmless to chickens and domestic rabbits." 
Investigations of the codling moth (Carpocapsa pomonella L.) at 
Wichita, Kans., during September, have consisted chiefly in checking in- 
juries on sprayed blocks. P. M. Gilmer, who has had charge of this 
work, writes: "An examination of two trees from which all attacked 
fruit was stripped at the approximate completion of each brood, the fruit 
being left beneath to furnish the normal infestation for the succeeding 
brood, has shown quite conclusively that for three—brooded areas the usual 
check block of unsprayed fruit is valueless as a comparison basis owing 
to almost complete loss of fruit before the third brood comes on. The 
actual figures follow for one tree: First brood, total fruit 5,205, 
total injuries, 1,092; second brood, total fruit available 3,811, total in- 
juries 2,885; third brood, total fruit available 674, total injuries 279. 
Since these trees were, as usual, unsprayed, it is readily seen that the 
quantity of fruit available for third-brood injury is so reduced as to 
give but little chance for the worms of this brood to find opportunity 
for entrance. The substitution of lightly sprayed blocks ought to give 
a somewhat truer idea of degree of infestation by checking all injuries 
as worms." 
