p 
- 478 - 
Preliminary tests with orchard sprayers driven through 
the fields have- shown that a majority of the aphids may "be 
destroyed, with nicotine sulphate and soap at the usual strengths. 
Adults of Hip podam ia con vergens (a coccinellid enemy of aphids) 
confined in small capsules of sprayed leaves, however, die from 
its effects. The addition of nicotine did not increase the scorch- 
ing effects of sodium arsenite sprayed on lucerne and clover. In 
spraying with nicotine and soap for "bean thrips ( Heliothrips f ascir.tus 
Perg.) at the usual strength and with an orchard power sprayer it was 
found that a large part of the infestation had not "been reached "by 
the spray. This was found to be due to a concurrent attack of 
Tetranychus t elarius L. (red spider) the leaves being so webbed 
together as to protect large numbers of thrips from being wetted. 
EDMUND SON, 7;. C. , and WELCH, J. S. (2063) 
1918. THE HOLE GARDEN IN IDAHO. Idaho Univ. Agr. Expt. Sta. Bull. 
106, 30 pp., illus. [Abstract in Rev. Ap^l. Ent. (A) 8: 
285-286. 1920.] 
Black Leaf 40 is used to control cabbage aphid (B revicoryne 
( Aphi s ) b rassica e) , melon aphis (A. Goss.ypi.i- ) , and onion thrips 
( Thrips t abac i) . 
FELT, E. P. (2064) 
1918. 33d REPORT OF THE STATE ENTOMOLOGIST ON INJURIOUS AND OTHER INSECT 
OF THE STATE OF NEW YORK, 1917. N. Y. State Mus» Bull. 202, 
pp. 1-240, illus. 
Control work on the potato aphid ( Macrosiphum s olanif oli i Ashm.) 
has demonstrated the efficacy of the nicotine soap preparation, using 
3/4 pt. 40-percent nicotine to 100 gal. water, to which are added 6 
to 8 lb. of any cheap sorp (p. 43). The same spray (p. 49) will con- 
trol redbugs ( Heterocordylu s malinu s Reut. and Lygide a mend ax Reut.) 
and the raspberry beetle ( By turn s uni color Say) (p. 50). Tobacco 
soap preparations should also be used against the black vine weevil 
( Otiorhynchus s ulcatus Fabr.) (p. 58) and European earwig (F orficula 
auricularia Linn.) (p. 62). Nicotine sulphate (40 percent nicotine) 
with soap is also recommended against the European springtail ( isot oma 
minuta Tullb. ) (p. 62). 
HAGAN, J. (2065) 
1918. SPRAYING EXPERIMENTS. Jour. Dept. Agr. and Tech. Instr. for Irelant 
18 (2): 186-188, illus. [Abstract in Rev. Appl. Ent. (A) 
■ 7: 63. 1919.] 
Various methods of extracting refuse tobacco stalks were 
tested namely (l) steeping the stalks 3 times in cold well-water 
(2) steeping them twice in cold well-water, the stalks being 
pressed after the first steeping (3) steeping the stalks once in 
cold well-water and pressing once (4) steeping them three times in 
fresh cold well-water; the total amount of water used in each 
case being about 1 gal. to 1 lb. of stalks. The four different 
