
ue Ola 
FRUIT AND SHADE TREE INSECTS 
H. G. Butler, in charge of the peach insect investigations at Har- 
riman, Tenn., submits a summary of the life-history data for the plum 
curculio (Conotrachelus nenuphar Herbst) from which the following data 
are-gleaned: In an orchard that was not sprayed in 1930, jarring was 
started March 13 and the first adults were taken April 10. For the 
whole period covering April 10 to May 22, the accumulated! catch on 77 
trees averaged 8.21 curculios per tree. Egg—laying began April 20 and 
continued until August 18--121 days, covering practically the whole of 
the period of peach development. The curculios began leaving the fruit 
May 22 and the first adults of this brood emerged from the soil June 
eo. From a study of individual oviposition records of first-brood adults 
it was found that only 5 out of 64, selected at random without sex deter-— 
mination, deposited eggs. These 5 averaged 11.4 eggs each. The pre- 
Oviposition period of these beetles averaged 15.29 days with a maximum 
of 17 days and a minimum of 12 days. 
Reporting on parasities of the obscure scale (Chrysomphalus 
obscurus Comst.) on pecan, Howard Baker, Shreveport, La., states: "The 
emergence of parasites from field-collected material continued at an un- 
seasonably high rate during November, nearly as many specimens being taken 
as in October. The species Ablerus clisiocampae Ashm. did not continue 
emergence during November, however. Additional evidence was gathered 
showing this last-mentioned species to be a hyperparasite of Prospaltella 
fuscipennis. The number of specimens emerging during November was as 
Hos SSS 
ss" 
In connection with control experiments against the hickory shuck- 
worm (Laspeyresia caryana Fitch) at Albany, Ga., G. F. Moznette submits a 
summary of the results of a "test to determine the value of spraying with 
hydrated lime (50 pounds to 100 gallons of water) as a control measure 
for the shuckworm,"in which" a row of alternate ‘Moore and Pabst were 
selected. The experiment was planned so that two trees (one of each va- 
riety) were sprayed and two adjacent trees were left unsprayed as a 
check. Records were obtained by collecting samples of 100 nuts each 
from five trees of each variety of both sprayed and unsprayed." The 
percentage of infestztion for the Moore variety was 5.2 and for the 
Pabst variety 8.6 . The check plot showed an infestation of 26.2 per cent 
for the former variety and 34.8 per cent for the latter. "Some defoli- 
ation was observed on sprayed trees. * * * no rain sufficient to wash 
off any of the spray occurred from the time of the first application 
until the nuts were harvested." 
E. J. Newcomer, Yakima, Wash., reports some results of spraying ex- 
periments against the codling moth (Carpocapsa pomonella L.): "The use 
of mineral oil emulsion, added to the lead arsenate, has given the best 
control. Two applications of oil (one at the height of each brcod) re- 
sulted in an average of about 18 per cent of wormy apples as compared 
with over 22 per cent where no oil was used. More applications of oil 
