= oe 
brought together the following summary of a survey made during the past season 
of the parasitization of oriental fruit moth larvae in peach twigs: "The 
outstanding features of this work so far noted are (1) The low percent-— 
age of parasitism of twig-infesting larvae of the first brood in all but 
a few restricted localities; (2) the occurrence of Macrocentrus ancylivo— 
rus Rohwer, particularly in broods following the first, in many widely 
separated localities in which it was not known to occur as a parasite 
of the fruit moth before the liberations of the past three seasons; (3) 
the comparatively high rate of parasitism of Cremastus probably minor 
Cush., and of Pristomerus ocellatus Cush. in a number of localities; 
ee ee a RT LS ae 
(4) the dominance of M. delicatus Cress. in eastern Tennessee and of 
Glypta rufiscutellaris Cress. throughout the hilly and mountainous north-— 
ern Appalachian region; and (5) the absence, this season, of any recovery 
of introduced European species in collections of twig-infesting larvae, 
unless the few Ascogaster obtained at Moorestown are the progeny of the 
Skunks eat peach borers.—~The experimental work on the peach borer 
(Aegeria exitiosa Say) conducted by H. G. Butler at Harriman, Tenn., has 
been seriously interfered with by some unknown predator that has been 
digging up peach borer cocoons and removing the larvae or pupae from them. 
An examination of the material from the stomach of a skunk killed in the 
orchard revealed large numbers of lepidopterous larvae, quite evidently 
those of the peach borer. 
Fig trees especially susceptible to injury by lubricating oil emul- 
sion.--A. W. Cressman, in charge of the laboratory at New Orleans, La., 
conducted numerous tests of oil emulsions for the control of the fig mealy— 
bug, Pseudococcus sp., and reports: "The summer's work has established 
the fact that fig trees will not tolerate lubricating oils in dosages 
sufficient to be effective against mealybugs."” 
Apple growers assisted in making their own oil sprays.--E. J. New- 
comer reports that, following directions furnished by the Yakima, Wash., 
laboratory, more than 25 growers have successfully made their own oil 
emulsions this season for both dormant and summer use. About 60,000 gal- 
lons have been made at an average saving of 25 cents per gallon. The for- 
mula used by. most of these. growers is as follows: 
Od pee a he, oe eee ree «| ee ee Pers 100 gallons 
WALDO TG, Aa PR Tee Sere aren 8 ee ere 33 gallons 
Casein (finely powdered). .................. re 3 pounds 
Ammonia s(28 per cont) = 2ee see 1 quart 
Nicotine tannate injurious to apple foliage previously sprayed with 
lead arsenate.--R. F. Sazama, in charge of the laboratory at Vincennes, 
Ind., makes the following report: "An interesting thing is that lead ar- 
senate and nicotine tannate can not be applied to the same tree without 
disastrous results. Qne of the trees in the nicotine tannate plot re- 
