Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . larva? of nearly all ages almostany time during the season. The second brood isusually much more numerous than the first, andconsequently the injury is most noticeable in Sep-tember and October. INJURING THE FRUIT. 51 Remedies.—Like so many other orchard insects,this pest may be destroyed by spraying with thearsenites—three or four ounces of Paris green, orLondon purple, to fifty gallons of water. INJURING THE FRUIT. The Codling Moth or Apple Worm. Carpocapsa pomonella. This is
Insects and insecticidesA practical manual concerning noxious insects and the methods of preventing their injuries . larva? of nearly all ages almostany time during the season. The second brood isusually much more numerous than the first, andconsequently the injury is most noticeable in Sep-tember and October. INJURING THE FRUIT. 51 Remedies.—Like so many other orchard insects,this pest may be destroyed by spraying with thearsenites—three or four ounces of Paris green, orLondon purple, to fifty gallons of water. INJURING THE FRUIT. The Codling Moth or Apple Worm. Carpocapsa pomonella. This is the most generally injurious apple insect, and is probably known wherever the fruit is grown. The small, chocolate moth (Fig. 20, g,f) deposits its eggs in spring in the blossom end of the young apple (b) before thelatter has turneddown on its stem. From the egg therehatches a minuteworm or caterpil-lar, which nibblesat the skin of thefruit and eats itsway toward thecore. Here it con-tinues feeding asthe apple develops,increasing in sizeuntil at the end ofthree or four weeks it is about three-fourths of an. Fig. 20. Codling Moth: a, injured apple:b, place where egg is laid ; e, larva; d, pupa :i, cocoon ; g,f, moth; h, head of larva. 52 INSECTS AFFECTING THE APPLE. inch long, and appears as represented at e. It hasnow finished its caterpillar growth, and, leaving theapple, finds some crevice in the bark where it spinsa rather slight silken cocoon in which it changes toa pupa. It remains in this condition about a fort-night, when it emerges as a moth like the one bywhich the original egg was laid. Thus the life cycleis completed. There are at least two broods in aseason. Remedy.—The best remedy for this insect is thatof spraying with the arsenites—Paris green or Lon-don purple—in spring, soon after the blossoms havefallen off, when the apples are from the size of a peato that of a hickory nut, and before they have turneddownward on their stems. A second application, te
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