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The War Production Board restricted the use of rotenone for most 
cattle lice, but it could be used to control the short-nosed cattle 
louse. An effective mixture was made by using 1 part of rotenone- 
dust containing 5 percent of rotenone to 5 parts of wettable sulfur, 
this dust to be applied thoroughly to all parts of the body, and re- 
peated in from 2 to 3 weeks.— Maxwell (408 ). 
Dusting is the common method of controlling lioe on dairy cattle 
in the Northern States. A dust composed of 1 part of cube or derris 
(5 percent of rotenone) to 10 parts of wettable sulfur gives very 
good oontrol of this louse. During the war rotenone substitutes were 
tried. The best one was composed of 1 part of sabadilla seed to 10 
parts of wettable sulfur. Ground yam bean seed [This contains 0.1 
percent of rotenone] with sulfur (is 10) was also very effective.— 
Matthysse and Sohwardt (405 ) ♦ 
Linognathus africanus K. and P.), a blue louse on goats 
Five species of lioe infest goats in the United States, viz., L. 
stenopsls (Burn.), L. africanus , Bovicola orassipes (Rud.) ( penicilTata 
Rud.j, < B. limbata (Ger.), and < B. oaprae I8urlt;. A mixture of wettable 
sulfur and cube or derris (4 to 5 percent of rotenone) is somewhat 
more effiolent in killing lice than sulfur alonej 50 pounds of wettable 
sulfur plus 10 pounds of cube or derris powder per 1,000 gallons of 
water makes an efficient dip. The same combination in these propor- 
tions of sulfur and cube or derris is a good dust for hand treating in- 
fested goats; or sulfur, cube, or derris may be used alone.— Babcock 
and Cushing (28) « 
Linognathus pedalis (Osb.), a foot louse on sheep 
Arsenical dips containing derris gave good results against this 
louse on sheep in New South Wales.— New South Wales Department of Agri- 
culture (439) . 
Two treatments at intervals of 10 to 14 days with a recognized 
sheep dip containing derris or rotenone were recommended in Viotoria. 
The sheep should stand in the bath for 5 minutes. Complete immersion 
is unnecessary unless there is evidence of the presence of lice on the 
head or body.— Shew (538 ). 
Linognathus piliferus (Burm.), a sucking louse of dogs 
Derris may be used as a dust (l part to 2 parts of flour, corn- 
starch, or talcum) ••—IT. S. Bureau of Entomology and Plant Quarantine 
(62?, p. 22). 
