Dusting woodland litter to kill lone star ticks. 
The applicator is a rotary hand duster. 
To kill American dog ticks and black-legged ticks. spray 
or dust a strip 20 to 30 feet wide on each side of roads 
and paths. To kill other species of ticks, treat the entire 
infested area. (If a survey shows that lone star ticks are 
concentrated in thickets. treat only those places.) 
On lawns and grounds up to an acre or two, or along 
roads and paths. apply the insecticide with a 2- or 3-gallon 
hand-pressure sprayer or a plunger- or rotary-type hand 
duster. If the area is large or the roads or paths extend 
over long distances. use a power sprayer or power duster. 
Aircraft can be used to treat some large areas of general 
infestation. Large area treatments may prove hazardous 
to wildlife. Do not treat unless necessary to protect 
humans from ticks and the diseases they carry. 
Using Repellents 
The mosquito repellents deet (diethyltoluamide), di- 
methyl phthalate, and ethylhexanediol. applied as clothing 
impregnants, will provide some protection against wood 
ticks. If you wear socks. shirt. and trousers impregnated 
with one of these materials. you can expect about 75- 
percent protection from ticks. 
Better protection can be obtained with another repellent, 
Indalone, but it is not widely available. 
Use the selected repellent in a solution or an emulsion. 
A 5-percent solution or emulsion will provide an effective 
deposit on ordinary cotton khaki, denim, or light wool 
clothing. About 3 pints of solution or emulsion will 
impregnate an outfit of socks. shirt. and trousers. 
You can make a 5-percent solution by mixing a repel- 
lent with acetone or a dry-cleaning solvent at the rate of 
1 ounce of repellent to 1 pint of acetone or solvent. 
You can make a 5-percent emulsion by mixing 1 ounce 
of repellent with 1 pint of water and 2 ounces of an 
Spraying vegetation to kill American dog ticks. 
The applicator is a compressed-air sprayer. 
emulsifier such as Tween 80 or Triton X—100 or 1 ounce 
of laundry soap. 
Dissolve the emulsifier or soap in the water and add the 
repellent slowly while stirring the mixture vigorously. 
(Synthetic household detergents are not suitable for mak- 
ing emulsions but most laundry soaps are satisfactory.) 
Dip the clothing into the repellent mixture or pour the 
mixture over the clothing. Then wring out the clothing 
by hand. Let it dry thoroughly before wearing it. The 
repellent will remain effective for about a week unless the 
clothing gets wet. Wash and re-treat clothing at weekly 
intervals. 
Do not treat rayon and nylon fabrics with repellent 
solutions or emulsions. Nylon is nonabsorbent and will 
not retain enough repellent to be effective. Some types of 
rayon may be damaged by the repellents. 
Ticks in Homes 
Although wood ticks seldom occur in homes in numbers 
that make control measures necessary, other ticks. chiefly 
the brown dog tick (Rhipicephalus sanguineus ). will infest 
homes and other buildings if dogs are present. 
The brown dog tick passes through the same stages as 
the wood ticks. In homes, the eggs and engorged ticks 
may be found in cracks. behind curtains. and under 
furniture or rugs. The tick will survive the winter out of 
doors in the most southerly States. but in most of the 
country it survives only in heated buildings. It seldom 
bites people. 
Soft ticks belonging to the genus Ornithodoros some- 
times occur in homes in the Western and Southwestern 
States. They are extremely painful biters and several 
species transmit the germs of relapsing fever. 
