[Fruit culture] . Fig. 22 APPLE PESTS AND INJURIES 37. Fig. 23 34. Apple Curculio.—In Fig. 23 (a) is shown the adultform of the apple curculio and in (b) the larval form. Thisinsect is about J inch long and on the wing covers are fourprominent humps. These insects lay their eggs in the applesfor about 2 months afterthe blossoms fall. A scaron the fruit similar to thatshown at a in Fig. 24 iscaused by the insect deposit-ing an egg. The maturebeetle eats sparingly of theapple and the scar caused*by its feeding is shown at eggs hatch within a week after being laid and the larvasdevelop in a
[Fruit culture] . Fig. 22 APPLE PESTS AND INJURIES 37. Fig. 23 34. Apple Curculio.—In Fig. 23 (a) is shown the adultform of the apple curculio and in (b) the larval form. Thisinsect is about J inch long and on the wing covers are fourprominent humps. These insects lay their eggs in the applesfor about 2 months afterthe blossoms fall. A scaron the fruit similar to thatshown at a in Fig. 24 iscaused by the insect deposit-ing an egg. The maturebeetle eats sparingly of theapple and the scar caused*by its feeding is shown at eggs hatch within a week after being laid and the larvasdevelop in about 3 weeks and pupate within the apple. Themature insects emerge in about 1 week after the larvas insects eat very sparingly of the apples, hibernate during the winter among rubbish,grass, or leaves, and depositeggs the following year. The methods of controllingthe apple curculio are thesame as those suggested forthe plum curculio. However,the apple curculios eat so littleof the apples that the spray-ing with arsenical poisons isprac
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Keywords: ., bookcentury1900, bookdecad, booksubjectfruitculture, bookyear1912
