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Chlordane gave the "best results against cabbage maggot in radishes of 
all materials tented. A dust containing 0.4 percent of chlordane permitted 
only 1.8 percent infestation, whereas untreated plants had an infestation 
of 52.4 percent. A snray containing 0.1 percent of chlordane p^rr.itted 4 
percent average infestation, a "better result than was obtained with BHC, 
toxaphene, mercuric chloride, and DDT. — Dills and Odland ( 104 , 106 ). 
At Puyallup, Washington a 5-percent chlordane dust permitted 26.4 and 
26.2 percent maggot infestation in broccoli two and four months after trans- 
planting.— Stitt and Eide (440). 
Hylemya cillcrura (Rond.), the seed-corn maggot 
Seed treatment gives little promise as a control measure fcr the seed 
ccrn maggot. A 5-percent chlordane dust used as a scil treatment reduced 
maggot injury, but imparted a slight flavor to dried beans. — Eistich and 
Schwardt (394). 
Chlordane at 5 pounds per acre mixed with 4-12-4 fertilizer was highly 
effective.— Floyd and Smith ( 147 . 149). 
Musca domestlca L., the house fly 
Although chlordane is somewhat more effective than DDT to house flies 
on the basis of initial killing action, it lacks the lasting effects of DDT. 
In laboratory tests surface treatments at the rate of 200 mg. per scuare 
foot gave complete or near complete kill of flies exposed for two hours aa 
long as 28 weeks after treatment. DDT, however, was still completely ef- 
fective after 36 weeks even at the lew rate of 50 n>6« per square foot. — 
Bishopp C22); Bishopp and Knipling (2k); U. S. Bur. Ent. and Plant Quax. 
(i±68). 
The relative toxicity of chlordane and DDT to the adult house fly was 
measured by the "large group" Peet-Grady procedure. Under the conditions 
of the tests it was found that 0.2-percent DDT or 0.05-percent solutions 
of chlordane are required to produce a 95 percent mortality in 24 hours. A 
median lethal concentration was estimated from probit-log dosage curves 
which indicated that a 0.06-percent solution of DDT or a 0. 02-percent solu- 
tion of chlordane would be required. — Eearns £t aJL. ( 245 ) . 
Chlordane acts as a fumigant as shown by tests in which house flies 
were exposed to vapors from residual deposits. — Hoffman and Lindquist (222). 
Chlordane was mixed with food and fed to larvae of Musca domertica . 
Tribollum confusum . Ephestla kuehnlella . and the adults of Sito-ohilus 
granariuo . The recults obtained with chlordane and with gamma benzene hexa- 
chloride ar^ very similar, both compounds showing median lethal concentra- 
tions of less than 50 parts oer million to all four species. — Brown e_£ al . 
(i2). 
The toxicity to house flies of surface coating containing chlordane 
was determined by painting the inside of a small box with riytures of 20 
