A CALENDAR OF LIVESTOCK PARASITES 9 
SEPTEMBER 
Dip livestock for lice, ticks, and mange mites 
while weather is still warm. 
Obtain bulletins which tell how to combat these 
pests. 
Now is the time to dip your livestock for lice (fig. 15), sheep 
ticks, true ticks, and mange. Later it will be too cold to do more 
than apply palliative measures to keep down these pests. Do it now 
while the weather is still warm and save yourself trouble later, as 
these pests are more troublesome in cold weather. Consult Farmers’ 
Bulletins Nos. 1330 (8) (sheep parasites), 1493 (17) (lice, mange, and 
Fig. 15.—Biting Fic. 16.—Two pigs of the same age. The large one is normal; the 
Steen. jouses female, other was stunted by worms and other hog-lot infections 
enlarge 
ticks of horses), 1085 (16) (hog lice and hog mange), 1017 (15) 
(cattle scab), 980 (1/4) (ear ticks), 909 (13) (cattle lice), 798 (12) 
(sheep ticks), and 713 (11) (sheep scab). Clean up lice on poultry. 
See Farmers’ Bulletins Nos. 1337 (7) and 801 (6). 
In your fall farrowing of pigs plan to use the swine-sanitation 
system as modified for farrowing on pasture in the fall. Note the 
contrast as shown in Figure 16 between a healthy pig and one stunted 
by parasites. Consult United States Department of Agriculture 
Leaflet No. 5 (18). 
A mud wallow for pigs provides a breeding ground for worm eggs 
and helps to load pigs with roundworms and kidney worms. At one 
packing plant in the South kidney worms and thornheaded worms 
cause an annual loss of $80,000. The use of a concrete wallow is an 
aid in keeping down worm infestations, provided it is properly con- 
structed and used. See Farmers’ Bulletin No. 1085 (16) for direc- 
tions for constructing and using concrete wallows. 
In regions where parasites interfere with sheep raising, breed ewes 
in time to lamb early, if you have the equipment, and market before 
the worms share your profits. Early lambs come before the parasites 
wake up from their winter sleep. 
