- 64 - 
In Oregon a 5-?o r cent chlordane dust, applied to blackberries, gave 
41.1 percent control; a 5-pQrcent TDE duat gare 100 percent control. In 
another test a 5-percent chlordane dust gave 33.6 percent control - the 
poorest of all insecticides tested. A spray containing 4 pints of chlor- 
dane emulsion (44 percent chlordane) per 100 gallons of water gave 86.1 
percent control which was increased to 91.4 percent when 4 quarts of oil 
were added to the spray. TDE gave the best control of the sprays tested. — 
Hosenstiel (399). 
A chlordane spray (l quart of 44 percent emulsion per 100 gallons of 
water) gave good control of the larvae of red raspberries in the Puyallup 
Valley, Washington, "but exhibited phytotoxicity causing a general yellow- 
ing of the foliage. A wettable powder appeared to be safe. — Johansen and 
Breakey (242). 
Ar gyro taenia velutinana (Wlkr.), the red-banded leaf roller 
Chlordane, 1 pound of 40-percent wettable powder per 100 gallons of 
water, proved unsatisfactory for the control of the first brood leaf roller 
in a Maryland apple orchard. — Graham ( 191, ) . 
In New York in 1948 chlordane as a 50-percent wettable powder proved 
worthless against second brood. — Glass and Chapman (1 , 79 ) » 
Chlordane is ineffective.— Eings (392). 
Choristoneura fumiferana (Clem.), the spruce budworm 
Chlordane dissolved in benzene-kerosene mixture and applied in a spray 
tower had very slight effect on the larvae. — Brown ejt, j£« ( 5 . ) . 
Cnenhasia Ipngana (Haw.), the omniverous leaf tier 
Chlordane, 1 quart of ^6 percent emulsion per 100 gallons of water, 
gave negligible kill of the caterpillars on field grown asters at Palo 
Alto, California.— Pritchard ejb a^. (374). 
HTMENOPTERA 
Apidae 
Aplg mellifera L., the honey bee 
The effect of chlordane on the honeybee has been observed in California 
by Eckert ( 122-124 ) and Linsley and MacSwain ( 300 ) ; in Massachusetts by 
Butler and Shaw (62); in Texas by Weaver (484); in Utah by Knowlton (267): 
and in Washington by Eide (U2) . 
Laboratory tests by Eckert (12_3) proved that chlordane it highly toxic 
to bees as a stomach poison, contact insecticide, and as a f mmigant . When 
chlordane is fed to bees in a 20-percent sugar sirup, the approximate LD-50 
is 1 microgram per bee. The residual action extends over a period of 3 
or more weeks under laboratory conditions. 
