liquid protein hydrolysate bait or 3 level 
tablespoons of dry protein hydrolysate 
of yeast to 10 gallons of water. 
Walnut Caterpillar 
Description.—The walnut caterpillar 
is the larva of a brown moth. The 
full-sized larva is 2 inches long, black, 
and has white hairs. It distinctively 
raises both ends of the body when dis- 
turbed. In the North, there is a single 
generation in late summer. In the 
South, there may be two generations, 
one in early July and the other in early 
September. 
Damage—tThe caterpillars can en- 
tirely defoliate black walnut trees. 
After hatching from masses of 200 to 
300 eggs laid on the undersides of 
leaflets, they feed in groups on the 
leaves. 
Control_—Apply insecticide spray to 
foliage when caterpillars are first seen. 
Trees 15 to 25 feet tall will need 5 to 
10 gallons apiece. For the spray, mix 
114 cups of 50-percent DDT wettable 
powder with 10 gallons of water. 
Fall Webworm 
Description—tThe fall webworm is 
the larva of a white moth. The larva 
reaches | inch in length, has black and 
orange spots, and is hairy. Its presence 
is indicated by distinctive gray webs 
that enclose branch tips and leaves. 
There may be early summer and fall 
generations. 
Damage—The webworms can de- 
foliate black walnut trees. They feed 
in groups on leaves inside the webs, 
enlarging the webs as they need more 
leaves. 
Control.—Apply insecticide spray to 
foliage when webworms are first seen. 
Trees 15 to 25 feet tall will need 5 to 
10 gallons apiece. For the spray, mix 
Washington, D.C. 
114 cups of 50-percent DDT wettable 
powder with 10 gallons of water. The 
worms can also be controlled by prun- 
ing off the infested branch tips. 
PRECAUTIONS 
Pesticides used improperly can be injuri- 
ous to man, animals, and plants. Follow the 
directions and heed all precautions on the 
labels. 
Store pesticides in original containers— 
out of reach of children and pets—and away 
from foodstuff. 
Apply pesticides selectively and carefully. 
Do not apply a pesticide when there is danger 
of drift to other areas. Avoid prolonged in- 
halation of a pesticide spray or dust. When 
applying a pesticide it is advisable that you 
be fully clothed. 
After handling a pesticide, do not eat, 
drink, or smoke until you have washed. In 
case a pesticide is swallowed or gets in the 
eyes, follow the first aid treatment given 
on the label, and get prompt medical at- 
tention. If a pesticide is spilled on your skin 
or clothing, remove clothing immediately and 
wash skin thoroughly. 
Dispose of empty pesticide containers by 
wrapping them in several layers of newspaper 
and placing them in your trash can. 
Do not allow dairy animals or meat ani- 
mals being finished for slaughter to feed on 
DDT-contaminated foliage beneath or near 
the treated trees. 
It is difficult to remove all traces of a 
herbicide (weed killer) from equipment. 
Therefore, to prevent injury to desirable 
plants do not use the same equipment for 
insecticides and fungicides that you use for 
a herbicide. 
NOTE: Registrations of pesticides are 
under constant review by the U.S. Depart- 
ment of Agriculture. Use only pesticides that 
bear the USDA registration number and carry 
directions for home and garden use. 
FOLLOW THE LABEL 
U.S. DEPARTMENT OF AGRICULTURE 
Issued December 1963 
lightly revised December 1969 
For sale by the Superintendent of Documents, U.S. Government Printing Office 
Washington, D.C. 20402 - Price 10 cents 
U.S. GOVERNMENT PRINTING OFFICE: 1969 O-——-361-671 
