Annual report of the Board of Agriculture for the year ending June 30th (1883) (14767996612)

Identifier: annualreportofbo8188verm (find matches)

Title: Annual report ... of the Board of Agriculture for the year ending June 30th ..

Year: 1872 (1870s)

Authors: Vermont. State Board of Agriculture Vermont. State Board of Agriculture, Manufactures and Mining

Subjects: Agriculture

Publisher: Montpelier, The Board

Contributing Library: University of Illinois Urbana-Champaign

Digitizing Sponsor: University of Illinois Urbana-Champaign

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peta po-moneUa) just described I found associated with it two kinds of smallerand more slender maggots, which, so far as my observations go, feedonly on the decaying part of the apple, following the Apple Maggotin its work of destruction. As these maggots are the young of Hies which in all stages are verycommon about the refuse of cider-mills and fermenting vats of grapepomace, I have called them Pomace-Flies. And I have distinguishedthe two species studied by prefixing to that name in each case a trans-lation of the specific name. Thus, one which bears the technicalname Drosophila ampelophila may be known as the Vine-LovingPomace-Fly ; and the other, which is Diosophila amcena, may becalled the Pretty Pomace-Fly. I have preferred the term Pomace-Flyto a translation of the generic name, as being both shorter and morecharacteristic than moisture-loving flies. Although, under ordinary circumstances, the Pomace-Flies feedonly on decaying fruit in an orchard, and cannot on this account be

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Plat e VI. INSECTS. 265 considered as pests of the apple, there are cases in which the)becomequite noxious. They are, therefore, worth)* of consideration in thisplace. Moreover, it is important that the Pomace-Flies should bedescribed in connection with the Apple Maggot, as they are veryliable to be mistaken for it; and a mistake of this kind might cause afruit-grower a great deal of unnecessary trouble. Mistakes of this kind in regard to these very insects have beenmade by entomologists of extended experience. I have, therefore,taken much pains to work out the specific characters of the differentlarvae. The Pomace-Flies may be found in an)-orchard during the autumn,flying about the rotten apples. And their larvae may usually be seenfeeding in great numbers in the decayed fruit. They go through theirtransformations very rapidly, so that there are several generations ina single season. This rapidity of multiplication greatly increases the seriousness ofthe evil where this insect is a p

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1883

University of Illinois Urbana-Champaign

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