Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 262.—Currant-worm, o, FIG. 263.—Saw-fly or adult currant-worm, a, male; b, female. (To face page 217.) INSECTS BENEFICIAL TO AGRICULTURE. 217 The Currant-worm (Nematus ventricosus Klug).—Thissaw-fly larva or false caterpillar is far more destructive thanall other insects combined to currant and gooseberry shrubs,since the voracious larvae appear in successive female, without having paired with the male, depositsher whitish cylindrical eggs along the under side of the mid-rib
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . FIG. 262.—Currant-worm, o, FIG. 263.—Saw-fly or adult currant-worm, a, male; b, female. (To face page 217.) INSECTS BENEFICIAL TO AGRICULTURE. 217 The Currant-worm (Nematus ventricosus Klug).—Thissaw-fly larva or false caterpillar is far more destructive thanall other insects combined to currant and gooseberry shrubs,since the voracious larvae appear in successive female, without having paired with the male, depositsher whitish cylindrical eggs along the under side of the mid-ribs. In four days the worms hatch, and eight days afterbecome fully fed, burrow into the ground, remaining inthe pupa state about a fortnight. REMEDIES.—Powdered hellebore or pyrethrurn mixed with four orfive times its bulk of cheap flour will, if constantly applied, save thecrop. INSECTS BENEFICIAL TO AGRICULTURE. In a great variety of ways certain insects are helpful toman, and are especially efficacious either in ensuring hiscrops or in destroying those insects which would otherwisedevour them. Fertilizers of Fruit-tre
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
