nhc 
pests, particularly on the relation of certain plant oat to trans— 
mission of bramble mosaic. Last year he was assigned to a study. of 
oil atomization as a possible control for insect pests that attack 
low-growing vegetable crops, and he had made some notable progress. 
Mr. Popenoe was the first to use carbon tetrachloride as a fumigant 
and, in cooperation with E. H. Siegler, of the Fruit Insects Division, 
he pioneered in investigations of aed acids 8 insecticides. He 
was one of the first to use thallium as en ant poison. dust prior to 
his death he had completed a rather ipl revision of Faruers'! 
Bulletin 1371 on Diseases and Insects of Gurden Vegetables. This bul- 
letin is one of the most popular that the Division has for distribu- 
tion. He had also completed a revision of Farmers! Bulletin 1286 on 
The Red-Necked Raspberry Cane Borer. Mr. Popenoe's leaving us so sud- 
denly was keenly felt by his many friends, not oniy in the Bureau, 
but throughout the Department. 
Oviposition-site preferences of two species of elaterid beetles.-—- 
E. W. Jones, of the Walla Walla, Wash., laboratory, reports as fol- 
dows: "With Pheletes canus Lec. and P. californicus Mann. the choice 
of the exact spot for oviposition seems to aepend largely on the 
moisture content of the soil and the degree of compactness «f the 
surface. Soil-cage experiments early in the spring showed that both 
Species laid large numbers of eggs in looses irrigated loam soils with 
a@ moisture content of over 20 percent (70 percent W.H.C. or over) 
Two soil conditions were avoided cumpletely by the egg-laying adults: 
(1) A loose Ary soil mulch of 6 inches containing 5 percent or less 
moisture, anc a similar condition where the soil was drying owing to 
@ sod cover without irrigation; (2) well-packed soil into which they 
were not able to burrow and lay eggs. ‘The packed soil was moist, 
but the compactness was tov much of a limiting factor. Barnyard 
manure was added to one cage of louse moist ith while a second cage 
of loose moist soil withsut the manure was held as a control. ee 
an equal number of eggs were laid in both cages, indicating tha 
manure was not an dicta pant fur the. beetles." 
ar-beet yields in Idano confirm prediction.—-d. 
din, of the Twin Falls, Idaho, laboratory, reoorts that the sugar- 
beet harvest was completed in the Twin Palis-Jerone area about Noven- 
ber 18, with a yield of 14.24 tons per acre. This yield was ex- 
ceeded only in 1927 and in 1932, when yields averaged 15.98 and 
16.45 tons per acre, HEB DPR eaN GLY An estimate innde in April of 
yield to be expected, and determined un the basis of correlation 
with available weather data and populaticn studies of kutettix 
tenellus Bak., vector of curly-top disease, indicated that the meen 
yield for the current year would be 13.95 tore per acre, a 
surprisingly close approximation of the actual tonnage obteined. 
C. Chember- 
+} 
