ide 
pecan trees during January and February and allowed to reenter soil on 
marked plots. Plots were laid in two localities on two soil types. * * * 
25 larvae were placed on each plot on January 23 and March 4. Carbon 
disulphide was applied April 6 and 7, * * * Concentrations of CS2 ranged 
from 20 to 150 parts to 100,000 of water. Fifteen dosages, varying in 
amount of water and concentration of insecticides, were tested, with three 
or four separate plots to the dosage. The soil temperature at 6 inches’ 
depth ranged from 66° to 76° F. during the period of application. * * * 
The results show a fairly uniform increase in killing of pecan weevil larvae, 
from 42 per cent at a concentration of 20 to 100 per cent at a concentra- 
tion of 100 and above." 
Liquid lime-sulphur only partially effective against San Jose scale 
in Georgia.--Oliver I. Snapp and J. R. Thomson, Fort Valley, Ga., report 
that "Ir order to obtain as much data as possible on the results from liquid 
lime-sulphur when used against the San Jose scale (Aspidiotus perniciosus 
Comst.) in central Georgia during the winter of 1931-32 and spring of 1932, 
an additional experiment was started on March 24 in which one-half of each 
tree waS wrapped with burlap to serve as a check and the other half was 
sprayed with 32° Baumé freshly made liquid lime-sulphur at the rate of l 
part of the concentrate to 7 parts of water. The experiment was duplica— 
ted in two orchards. scale counts were made just before the spray was 
applied on March 24 and again on April 25 to determine the results." The 
results from this experiment show that the percentage of control ranged from 
28.7 to $5.5 per cent——-"a little better than reported from previous ex-— 
periments during the winter, but it is still very low as compared with 
the results from oil emulsion." 
Pear leaf blisters caused by external feeding of mites.--E. J. New- 
——— ee ee ——— 
comer and A. R. Rolfs, Yakima, Wash., "have been making careful observa-— 
tions this spring on the habits of the pear-leaf blister mite," to deter— 
mine the cause of the blisters. Mr. Newcomer says: "We find that the 
overwintering adult mites begin to deposit eggs late in March in the buds, 
when the latter have just begun to swell. Within two weeks most of the 
adults have disappeared and the eggs are beginning to hatch. The young 
feed within the expanding buds and at the base of the leaf petioles. The 
first blisters were found about 10 days after the first eggs hatched, at 
which time many of the leaves were partially expanded. The blisters seem 
to result from the external feeding of the mites, and many of them, es-— 
pecially on the fruit stems and petals, do not contain any mites. On the 
leaves, the mites, now full grown, bore into the blisters, making the 
characteristic small holes that are usually found, feed within, and soon 
begin depositing eggs within the blisters. Many of the mites remain out- 
side, and the adults have been observed entering and leaving the blisters. The 
first eggs, laid by overwintering mites, were found March 21 and by April 19 
eggs of the next generation, laid in the blisters, were beginning to hatch." 
Red scale survives equally well on lemon and orange.--C. I. Bliss and 
assistants, Whittier, Calif., report that "Comparison of survival of the 
