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untreated plot. There were 5 applications of dust at the rate of 20 
pounds per acre application. — Post £t al,. ( 370 ). 
In tests on Red Warba potatoes in Winnipeg a spray of chlordane wet- 
table -powder yielded 317*2 "bushels of potatoes per acre as compared to 
83.7 in the check. A chlordane emulsion spray was somewhat less effective. 
None of the insecticides tested (toxaphene, chlordane, and DDT) impaired 
the flavor of potatoes tested as "boiled potatoes and none of them injured 
the potato foliage. — Mitchener ( 330 ) . 
In New Jersey field tests potato plots sprayed with 50-percent 
chlordane at the rate of 2 pounds to 100 gallons of water, gave a lower 
yield than plots sprayed with the same dosage of 15-psrcent parathion or 
25-percent benzene hexachloride. — Campbell ( 64 ) . 
Additional observations of the effect of chlordane on plants have 
been recorded as follows: No effect on the flavor of apples (Weinman 
486 ): no phytotoxicity to the apple tree (Frezal 157 ): no injury to 
asters (Jefferson and Pence 239 . 240 ): imparted a flavor to dried beans 
(fiistich and Schwardt 394 ) ; chlordane dust caused slight injury to the 
new growth of cantaloupes and cucumbers (Brooks and Anderson 48); chlor- 
dane emulsion applied to corn ears imparted an odor noticeable at har- 
vest (Blanchard and Chamberlin 25); four dustings with 5-percent chlordane 
injured the corn (Tissot and Kuitert 456 ): potatoes grown in chlordane 
treated soil showed no off -flavor (Kulash 278 ): chlordane wet table powder 
spray severely burned the foliage of the Concord grape (Cox 84.) ; and the 
foliage of prunes and also retarded growth of the tree and development of 
fruit (Cox8_5j; did not injure red clover (Marshall et al. .214.) j chlordane 
emulsion caused some injury to sweet potato foliage in the greenhouse 
(Harrison 206) : at prescribed dosage levels chlordane did not injure grass 
but at extremely high levels (up to 150 pounds per acre) clover and bent 
grasses were retarded temporarily (Schread 409, ) . 
EFFECT ON ANIMALS 
Earthwo rm 
Chlordane 50-percent wettable powder at 1/4 pound per 100 gallons of 
water reduced the earthworm population of the fairway of a Florida golf 
course, but the control was not considered satisfactory. — Hayslip ( 21l ). 
Snail 
A 5-percent chlordane dust proved unsuccessful against Otala lactea . 
the milk snail, in the San Francisco Bay area in 19^7. — Armitage (25). 
Black widow spider 
For black widow or other spider control, a light dusting of the area 
near where the webs are found is sufficient. The chlordane-impregnated 
