a1 0 
vapor which is considerably below the minimum lethal concentration for 
a lengthy fumigation period. Larvae under the influence of the fumi- 
gant do not resume feeding for a considerable length of time after be- 
ing removed to a normal atmosphere. In general, it may be said that 
the longer a larva is fumigated, the lower the concentration of vapor 
required to continue its quiescent state. Larvae may remain in this 
inactive condition for months and upon being removed from fumigation 
may complete development. The fact that the effect of the vapor is ac— 
cumulative and that larvae recover from it very slowly gives additional 
margin of safety in its use." 
Some seeds injured by paradichlorobenzene.—-Reporting on the ef— 
fect of fumigation with paradichlorobenzene on the viability of cer-— 
tain seeds, George W. Ellington, Sligo, Md., says: "Of the 35 varieties 
of seeds kept under constant fumigation for a period of 9 months, ger- 
mination tests show that only 8 varieties were uninjured by this treat— 
ment, namely, Mammoth Yellow soy beans, Hubbard squash, Canadian field 
peas, cowpeas, garden peas, rape, white clover, and cotton seed." 
ees ee ens 
if., reports that "Captures of insects in beetle traps in 4 fig plantings 
continued to be small (in April). The total number of Nitidulidae taken 
was 1,056, whereas in 1931 (March 31 to April 21) the same number of 
traps Similarly located took 3,825, or 3.6 times as many." 
Protecting figs against entry of insects.--Mr. Simmons states: 
"Laboratory trials of the efficacy of pumicite slurries for sealing 
green figs were made, using first-crop Calimyrna figs. This prelin-— 
inary work suggests that a slurry composed of equal parts by weight of 
powdered pumicite and water will perhaps be the maximum dilution which 
may be expected to function as a spray for closing the apical opening 
of green figs." 
Development of Ephestia figuliella in the field.—-Mr. Simmons re- 
ports that at Fresno "The first pupae of the raisin moth were found under 
grapevine bark on April 4 and 5 and the first adults were taken in 
moth traps in 2 vineyards on April 19. (In 1931 the first pupae were 
found under bark on April 8. The months of March, 1931, and March, 
1932, were each about 3.5° F. warmer than normal.) The appearance of 
the adults coincided well with the unfolding of the grape clusters." 
First record of adult pea weevil in Oregon.--L. P. Rockwood, For- 
est Grove, Oreg., reports "taking a pea weevil in a pea field near this 
place on April 12. This is the earliest record of the weevil on peas 
this year." 
a 
Idaho, sublaboratory, reports: "The first activity among the pea weevils 
this spring was observed on April 11, 1932. On this day several wee— 
vils were noticed flying about and others were found resting on the 
