. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. 398 ECONOMIC KNTOMOlOllY (A) Special Crops.—Such crops have been found advantageous in the control of Hessian fly, army worms, squash Ijugs, cucumber beetles, and asparagus beetles. In the case of the Hessian tly narrow strips arc planted early so that the flies may deposit their eggs on the wheat before the regular planting of the field. These tra
. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. 398 ECONOMIC KNTOMOlOllY (A) Special Crops.—Such crops have been found advantageous in the control of Hessian fly, army worms, squash Ijugs, cucumber beetles, and asparagus beetles. In the case of the Hessian tly narrow strips arc planted early so that the flies may deposit their eggs on the wheat before the regular planting of the field. These trap strips are then destroyed. With the army worm, a similar narrow strip on the border of the field may be poisoned with an arsenical spray. With cucumber beetles and asparagus beetles, a few plants may be set apart to trap the early beetles nd then destroyed. (f) Poison Bails.—Such are very effective against grasshoppers, cutworms and other insects. The Criddle Mixture, made by thoroughly i lb. of Paris green or white arsenic, i lb. of salt (dis- solved in water), and 15 gal., by measure, of fresh horse droppings, with sufficient water to make the. Fig. 252.—Wood form for cutting hexagonal disks for the cabbage-root maggot. (After Britlon.) Fir,. 25J.—Tuol for cutting cards of tarred building paper. {After Slingertand.) whole mass moist but not soggy, is used in the West against grass- hoppers. When the mixture is scattered about grass lands and the edges of grain fields in hot, sunny weather the grasshoppers are readily poisoned. Another bait, first used in Kansas against grasshoppers, is now usually employed against cutworms, army worms and grasshoppers. The formula is: i lb. Paris green, 20 lb. wheat bran, 2 qt. of cheap molasses, the juice and pulp of 3 oranges or lemons, and 2 to 2'2 ga'- water. The bait, sown broadcast in early morning, will show results in a few Please note that these images are extracted from scanned page images that may have been
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectentomology, bookyear1
