
T CONTROL 
Deets Bol SJ eur CREE 
CORN EAR WORM 
The corn ear worm is a green to brown, nearly smooth caterpillar, often mistaken for a cutworm when 
found within the buds or on the open flowers, 
INJURY. It is very destructive to the opening buds, for it feeds on their petals and other parts, 
deforming if not entirely ruining the flowers. 
CONTROL. If the attacked plants are blooming, spraying is out of the question, but thorough treat- 
ment with sulfur-lead dust is recommended. After they have worked their way into the buds and 
are found to be feeding on the open flowers, hand-picking is the only remedy. It has been 
reported ‘that D. D. T. will control the corn ear worm, 
CUTWORMS 
The larva is dull-colored from one to more than two inches in length. They are most active at night, 
and usually spend the day coiled up just under the surface of the soil at the base of the plant. They 
should not be confused with the corn ear worm which cannot be controlled by poison baits, 
INJURY. Cutworms obtain their food by biting out sections of the leaf, stem or bud. Various species 
attack different parts of the plant. The one that is most damaging climbs to the top of the stem 
and eats into the flower buds. 
CONTROL. Those cutworms that feed on the foliage can best be controlled with arsenate of lead 
spray using |!/> pounds to 50 gallons of water plus !/. pound of caseinate spreader. Cutworms 
are also controlled with a poison bran bait which should be distributed very thinly over the bench 
several consecutive nights. Poison bait formula consists of 5 pounds of wheat bran, enough water 
to moisten mash, 4 ounces of Paris Green, | pint of molasses and one finely chopped lemon. 
D. D. T. when used properly will kill cutworms. 
GREENHOUSE LEAF TYER 
It gets its name from its habit of spinning light webs inclosing two or more leaves or tying together 
the parts of a single leaf. This caterpillar is very active, and when disturbed will wriggle off the leaf, 
often backwards, lowering itself on a silk-like strand. 
INJURY. When first hatched, the larvae eat out shallow holes on the under side of the leaves. As 
they grow, they enlarge these holes but usually do not cut through to the upper surface. The result 
is that the leaves become skeletonized. 
CONTROL. The best poison to control the larvae is arsenate of lead, either in the form of a dust or 
a spray. For liquid spray use I'/> pounds of arsenate of lead to 50 gallons of water plus '/y pound 
of caseinate spreader, Leaf tyers can also be controlled with tartar emetic. Add two pounds of 
tartar emetic, 4 pounds of sugar to 100 gallons of water. Spray the plants thoroughly so that the 
entire plant is covered. Pyrethrum sprays such as EVERGREEN, RED ARROW SPECIAL, and 
LIBERSOL will kill the worms and not discolor the foliage. D. D. T., that powerful insecticide, will 
give good control either when used separately or when combined with other sprays. 
Corn Ear Worm Damage Leaf Tyer 

