The practical fruit grower . w wagon anddriving among the trees. If the trees are thoroughly sprayedand no rain follows for several days, one application is generallyeffectual, but sometimes a second or third syringing is principal objection to this remedy is in the danger, to bothman and animals, in the use of so dangerous a poison. A safe and equally as effectual a remedy is found in the Pyrethrumor Persian insect powder. If used in the same way as the parisgreen, it will destroy the larva? while young, and will paralyze thelarger ones so that they will fall at once to the groun
The practical fruit grower . w wagon anddriving among the trees. If the trees are thoroughly sprayedand no rain follows for several days, one application is generallyeffectual, but sometimes a second or third syringing is principal objection to this remedy is in the danger, to bothman and animals, in the use of so dangerous a poison. A safe and equally as effectual a remedy is found in the Pyrethrumor Persian insect powder. If used in the same way as the parisgreen, it will destroy the larva? while young, and will paralyze thelarger ones so that they will fall at once to the ground. As themore mature larvse will attempt to crawl back to the tree, a singleapplication only of the band of ink is necessary to catch anddestroy them. This powder is perfectly harmless to man or ani-mals, is as effectual as the paris green, and should be used inpreference to that deadly arsenical preparation. The Apple Aphis or Plant-louse (Aphis mail).—This is asmall, green fly (Fig- 39) (very similar to the common plant-. Fig. 39. louse which attacks house plants), that often appears m largenumbers upon the young shoots, injuring them by sucking outtheir juices. It is destroyed by the application of a strongsolution of whale-oil soap and tobaccdwater, or by the application f the pyictlu-uin powder just at night. THE CODLIN MOTH. 41 The Codlin Moth (Carpocapsa pomonella).—Fig. 40 is anApple injured by the codlin moth; e, larvae escaping; f, moth at ar-
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Keywords: ., bookcentury1800, bookdecade1880, bookidp, booksubjectfruitculture
