. Manual of fruit insects. the fruit of the Wild Crab (Pyrus fusca)but it has now become thoroughly established on the culti-vated apple. In England and Scandinavia it has been foundinfesting the cherry. The injury is caused by the pinkish white larva, about finch in length, which burrows in all directions through thefruit during July, August and September. The tissue around APPLE INSECTS 27 the burrows turns brown, decay ensues and the apple is parent moth (Fig. 23) has a spread of nearly | inch; thefront wings are iridescent purplish gray mottled with brownish ;on the front margin
. Manual of fruit insects. the fruit of the Wild Crab (Pyrus fusca)but it has now become thoroughly established on the culti-vated apple. In England and Scandinavia it has been foundinfesting the cherry. The injury is caused by the pinkish white larva, about finch in length, which burrows in all directions through thefruit during July, August and September. The tissue around APPLE INSECTS 27 the burrows turns brown, decay ensues and the apple is parent moth (Fig. 23) has a spread of nearly | inch; thefront wings are iridescent purplish gray mottled with brownish ;on the front margin is a row of minute white and brown dotsand a larger oblique white mark occurs near the apex; on thehind margin is a broad creamy-white band interrupted near themiddle by a brownish spot. The moths appear in May andJune. The eggs are unknown. The young larvae enter the fruit at the side and on becomingfull-grown leave the apple and seek shelter under the bark onthe trunk or under leaves on the ground. The winter is passed. Fig. 23. — The apple fruit-miner moth (X 7§). in the pupal state in white cocoons, the outer layers of which areloose and have the threads arranged so as to form a beautifulopenwork pattern. Remedial measures. Satisfactory methods of control have not yet been devised, butseveral thorough sprayings with arsenate of lead, so appliedas to keep the fruit coated with-the poison, would doubtless domuch to lessen the injury. References Kept. Exp. Farms Ottawa 1896, pp. 258-262, Exp. Farms Ottawa 1897, pp. 201-202, , Prakt. Ratg. Obst- und Gartenbau, XXII, pp. 452, 453. 1907. 28 FRUIT INSECTS The Apple Red Bugs Heterocordylus malinus Reuter, and Lygidea mendax Reuter These two native sucking plant-bugs have in recent yearscaused considerable injury in certain orchards in New York and New Jersey bypuncturing theyoungapples during Mayand early of the punc-tured apples fall tothe ground, othersdry up on the tree,while the remaindermature
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbenefic, bookyear1915