to control northern fowl 
mites and depluming mites 
In trying to relieve the irritation, fowls pull out 
their feathers until they are almost naked. 
Control 
Use the sulfur dip recommended for northern 
fowl mite control. A second treatment in 3 or 
4 weeks may be necessary. 
CHIGGERS 
Chiggers that attack poultry are the same tiny 
red mites that attack man. They attach them- 
selves to the skin of poultry in clusters under 
the wings and on the back and neck. Injury is 
most severe among young fowls. 
Infested fowls become droopy and emaciated, 
and refuse to eat. Abscesses and extensive 
avons of inflammation arecommon. Many birds 
ie. 
Control 
Rub one of the following substances on in- 
fested fowls to kill the chiggers: Sulfur oint- 
ment, kerosene, lard, mineral oil, or vaseline. 
Use a good disinfectant, such as a 4-percent 
carbolic acid solution, on areas that contain pus. 
If there is no practicable way to keep poultry 
out of places where chiggers are likely to be— 
to control northern fowl 
mites 
such as meadows, patches of weeds or berries, 
orchards, and woodland—spray or dust the 
places with toxaphene, chlordane, or lindane. 
Remove fowls and livestock from the area to be 
treated. Keep them out of the area at least 2 
days after completing the treatment; confine 
fowls in the poultry house and animals in barn- 
yards if necessary. 
SPRAYING 
Apply toxaphene or chlordane at the rate of 
2 pounds per acre, or lindane at the rate of 14 
pound per acre. To prepare a spray, mix an 
emulsifiable concentrate or wettable powder 
with water. The amount of concentrate or 
powder that you must use to obtain the required 
dosage depends on the percentage of actual 
insecticide in the product you buy. A chart on 
page 8 shows the percentages most commonly 
found in retail products and, for each product, 
the amount needed in a spray mixture prepared 
for treating 1 acre or for treating 1,000 square 
feet. 
The amount of water needed depends on the 
density of the vegetation to be treated, ranging 
from 25 gallons per acre (for sparse vegetation) 
to 50 gallons per acre. From 1% to 1 gallon is 
needed to treat 1,000 square feet. 
Spray treatments will usually prevent rein- 
festation for 4 weeks or longer. 
