- 2fO- 
Howard, Erannon, and Mason (42) in 1935 reported on insecticides 
tested for the control of the Mexican "bean "beetle. Nicotine dusts 
containing 2 percent of nicotine in a "b enton it e- sulfur carrier and 
nicotine-"bentonite-sulfur sprays at the rate of 1 pint of nicotine 
sulfate and 3 pounds of "ben t on ite- sulfur to 50 gallons of r^ater gave 
very poor results and indicated that these mixtures are not satisfactory 
stomach poisons for the control of the Mexican "bean "beetle. AnalDasine 
sulfate was used under "both laboratory and field conditions in Ohio 
during 1933. At a dilution of 1 part in 100 parts of water the control 
was poor and there v;as moderate injury to "bean foliage. Such unfavor- 
able results were obtained that the use of the material was discontinued. 
G-arman (31) in 1935 reported that nicotine and ana.basine sulfate 
(1:800) gave efficient control of the whits apple leafhopper, T'yph l ocyba 
pomaria I.'IcAtee , in field tests without the addition of soap. Anabasine 
sulfate is equal to nicotine sulfate in effectiveness. 
Garman (30) in 1935 also reported on the toxicity of pure anabasine 
and pure nicotine for Aphis ruiaicis . On nasturtium leaves under con- 
trolled conditions, anabasine v;as superior in every case. It gave as 
high ,a kill as nicotine at 3 or 4 times the strength. Only mature wing- 
less agamic females wore counted in each experiment. Chemically pure 
sodium oleate (l:100) was used as a spreader. 
Kovaleva (53) in 1935 reported on the chemical control of the cod- 
ling moth in the U. S. S. R. Ivio applications of a spray of paris green, 
bordeaujc mixture, and anabasine sulfate reduced the percentage of injured 
fruit to 5.5. In tests on a sraall scale linseed-oil emulsion containing 
2 percent of anabasine sulfate killed 18 percent of the eggs. 
Mizerova (83) in 1935 reported on the chemical control of the apple 
sucker, Psylla mali Schm. , in central Russia. The most satisfactory ovi- 
cide in the laboratory was lime-sulfur (7 percent), which killed 76.7 
percent of the eggs. In orchard experiments, however, the only sprays 
that showed any promise were two 4-percent mineral oil emulsions, and 
the percentages of dead eggs on trees sprayed with them were only 40.4 
and 23.1, as compared with 10.7 on ^onsprayed trees. One application in 
the orchard of a spray of 0.1, 0.3, or 0.4 percent of anabasine sulfate 
with 0,4 percent of soft soap and 0.75 percent of lime-sulfur killed 
75.4 percent of the young nymphs and 42 percent of the older ones, the 
difference in strength of the anabasine sulfate having no effect on the 
rate of mortality. A second spray did not further reduce the infestation 
enough to justify its cost. One application of 0.75-percent lime-sulfur 
killed 79.8 percent of the young nymphs and 59.9 percent of the older 
ones. Of insecticides used against the adults, a dust of anabasine 
sulfate (5 percent) and a spray of nicotine sulfate (0.3 percent with 
soft soap) were the iaost effective. 
Pavlov (107) in 1935 reported a test of carriers of local importance 
in the manufacture of anabasine dusts. These tests were designed to 
find suitable carriers for anabasine sulfate dust that are available in 
large quantities in the black soil zone of the U. S. S. R. The anabasine 
sulfate used contained 28 percent of the alkaloid. In experiments against 
