Hemispherical Scale

See Citrus.


See Citrus.

Coleus. Mealy-Bug

See Citrus.

Orthezia Insignis

Ocherous to dark green scale insect covered with a white waxy secretion extending posteriorly into a broad plate.


Contact insecticides.


See Tomato.

Corn. Army-Worm (Leucania Unipuncta)

A cut-worm-like caterpillar, which normally feeds on grass. When this food-supply is exhausted, they migrate in numbers to other fields and attack corn, wheat, and similar crops.


To stop the advance of the "army," plow deep furrows so the dirt is thrown toward the colony; in the bottom of the furrows dig post-holes into which the caterpillars will fall and where they may be killed with kerosene.

Chinch-Bug (Blissus Leucopterus)

A red or white and black sucking bug, three-twentieths of an inch long. Attacks wheat and corn in great numbers.


Clean farming to destroy suitable hibernating shelter. Stop the migration of the bugs from the wheat-fields into corn by maintaining along the field a dust strip 10 feet wide in which a furrow and post-hole barrier has been constructed. This may be supplemented by a coal-tar barrier.

Angoumois Grain Moth (Sitoiroga Cerealella)

A small caterpillar living in the grains. The adult is a small grayish brown moth. Most destructive in storage.


Fumigate with carbon bisulfid, five pounds to 1,000 cubic feet. Make bins perfectly tight and sprinkle over grain, covering with gas-proof tarpaulin. Fumigate at least twenty-four hours. This should be done when temperature is not below 65° F. In steam-heated mills, the most practicable method of destroying grain-infesting insects is by holding temperature from 118° to 122° for several hours.

Catalogue of Insects, continued.

Corn Ear-Worm (Heliothis Armiger)

A green or brownish striped caterpillar feeding on the corn beneath the husk. Three to six generations yearly.


Plant as early as possible, and still avoid a "set-back" to the crop.

Corn-Root Aphis (Aphis Maidiradicis)

A bluish green aphis infesting the roots.


A short rotation period in corn, especially in dry years. Deep and thorough and repeated stirring of old corn ground in fall and spring as a preparation for corn-planting. Maintenance and increase of the fertility of the soil.

Cutworms (Agrotis, Hadena, Etc.)

Soft-bodied caterpillars eating and cutting off the young plants.


Early fall plowing of grass lands intended for corn; pasturing by pigs of grass or clover land intended for corn; distributing a line of poisoned bran by means of a seed-drill. To prevent the caterpillars entering from a neighboring grass field, destroy them with a line of poisoned vegetable bait.