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the efficiency of spray deposits. On freshly painted wood surfaces the 
type of finish influenced the effectiveness of the spray deposit. Cold- 
water and flat oil paint greatly reduced the effectiveness of the spray 
deposits "but enamel did not. Water suspensions of wettable powders were 
absorbed less than other formulations, so that on absorptive surfaces, 
such as cement and cardboard and unpainted v/ood surfaces, they were more 
effective. — Cotton and Frankenfeld (8l); Cotton et, al. (83) . 
Chlordane formulated as an emulsion was sprayed on variously treated 
wood surfaces and flour beetles were exposed to the residues (200 rcg. 
chlordane per square foot) for 6 hours. The mortality of the beetles 12 
days after exposure was 100 percent on the unpainted surface, 30 percent 
on cold-water paint, 20 percent on flat oil paint, and 60 percent on 
enamel. — Cotton and Frankenfeld (82) . 
See under Musca domestica . — Brown et, al. (52) . 
See under Blattella germanica . — Brown, Wenner, and Park (53). 
LEPID0PTERA 
Aegeriidae 
Melittia cucurbitae (Harr.), the squash borer 
In experiments at Geneva, New York, control of the borer was obtained 
with a 5-percent chlordane dust. — Csrruth and Eowe (66). 
Sanninoidea exitiosa (Say) , the peach tree borer 
In tests made in Virginia in 19^7 and 19^8 chlordane at 1 pound per 
100 gallons of water was not so effective as DDT and had a relatively short 
period of residual killing. — Bcbb Q2) . 
Crambidae 
Diatraea sac char al is (P.), the sugar cane bbrer 
In Louisiana in 19^-6 poor control (51 percent) of the borer was obtained 
with a 5 percent dust of technical chlordane. — Ingram et. al. ( 236 ) . 
In ly47 chlordane accounted for a significant increase in borer infes- 
tation following second generation dusting, due apparently to its injurious 
effect upon the natural enemies of this pest. At one location in Louisiana 
chlordane caused a loss in yield of 6.65 tons of cane per acre. — Dugas e_t 
al. (117). 
