498 THE HANDBOOK FOR PRACTICAL FARMERS 



of control has been tested for three years by an expert^ of the 

 Bureau of Entomology of this department and has given very 

 satisfactory results. Similar success with it has been reported 

 by others, including persons engaged professionally in insect 

 extermination. A related formula experimentally worked out 

 for the Argentine ant is given in a special bulletin on this insect.^ 

 This formula is as follows : 



Granulated sugar 15 pounds 



Water 7% pints 



Tartaric acid (crystallized) 14 ounce 



Boil these ingredients together slowly for thirty minutes and 

 allow to cool. Then slowly dissolve three-fourths ounce sodium 

 5 arsenite (NaAsOo) 



r ^\ Nofr- ^^ ^^ one-half pint of 



--aoL t- -j^^l. ^yg^i^gj.^ Allow 



this to cool, then 

 add it to the syrup, 

 stirring thoroughly. 

 Add one and one- 

 half pounds of pure 

 honey to the syrup 

 and the mixture is 

 ready for use. 



Fig. 232. — A ''little house Rj" (Fanniabrevis). Female HoUSe flv (a dlS- 



at left, male at right. Much enlarged. • \ 



ease carrier). — 

 Control. — The fly breeds in manure (horse), garbage and 

 filth. Erect fly-proof manure pits or scatter manure on the soil 

 once each week. All garbage cans should 

 be covered with a tight-fitting lid. Clean 

 up all filth in which flies might breed. \ 



Stable fly. — Attacks warm-blooded ani- ' 

 male, disturbing and irritating them. Cer- 

 tain diseases are transmitted by these MfCf^^n 

 flies. 



Control. — In Farmers* Bulletin 540, 

 U. S. Department of Agriculture, the fol- 

 lowing repellant is recommended: *'A 

 mixture of fish oil (one gallon), oil of pine fig. 233.— The true house 

 tar (two ounces), oil of pennyroyal (two %i^lge±-TTD7jt'. 

 ounces), and kerosene (one-half pint) was of Agriculture. 



1 C. H. Poponoe 



* Barber, E. R. The Argentine Ant: Distribution and Control in the United 

 States. U. S. Dept. Agri. Bui. 377. 



I 



