Prepared household sprays containing pyrethrum may 
be applied in the same manner. Since these sprays 
usually contain low concentrations of insecticide, the treat- 
ment may have to be repeated in 7 to 10 days. 
Apply any of these sprays at the rate of about | quart 
to 250 square feet. Use a hand sprayer, a household 
sprayer designed for treating surfaces, or a compressed-air 
sprayer. Apply a fine-mist spray; a heavy spray may 
stain fabrics. 
GUIDE FOR MIXING SPRAYS 
Insecticides and some of the Percentage Approximate 
forme intwhich thay sien of insecti-  |amount of purchased 
Be purchased cide desired | product to mix with 
P in spray 5 gallons of water 
DDT or Methoxychlor 
50-percent wettable powder____ | 0. 5______ 6 ounces. 
ibis Olese | 12 ounces. 
25-percent emulsifiable concen- | : 
NGTeL 20 ele eee f 02522 1 pint. 
| 16:0228 23-12 quart 
Chlordane | 
50-percent wettable powder____| 0x5 | 6 ounces. 
50-percent emulsifiable concen- 
trates 2 = Se ee O2522=225 | V2 pint. 
| | 
Lindane or Malathion | 
25-percent wettable powder____|/ 0. 05_____ 1 ounce. 
\ 02725-== | 6 ounces. 
20-percent emulsifiable concen- | O05ns | 21/2 tablespoon- 
Tales. ee fuls. 
. : WOR asa Y2kping Ed 
PRECAUTIONS 
Handle insecticides with care. Most of them are likely 
to poison people and animals if they are handled 
carelessly. 
Store insecticides where children and pets cannot reach 
them. 
Avoid unnecessary exposure to insecticides when 
handling them. 
If concentrated material is spilled on the skin while 
mixing sprays, wash it off immediately. Remove cloth- 
ing that may be wetted by the material. 
Do not apply oil sprays near an open flame. 
Do not permit children to play on treated lawns for at 
least 24 hours after the treatment. 
© 
This leaflet was prepared by the Entomology Research 
Branch, Agricultural Research Service. It supersedes 
Leaflet 152, How To Control Fleas. 
Washington, D.C. Issued August 1955 
U. S. GOVERNMENT PRINTING OFFICE 16—71800-1 
For sale by the Superintendent of Documents, U. S. Government 
Printing Office, Washington 25, D. C. - Price 5 cents 
