. Economic entomology for the farmer and fruit-grower . The Hessian-fly, Cecidomyia destructor.—Ox\ the left a healthy stalk of wheat, and on the right one infested at h by Hessian-fly, showing the galls, a, egg; b, larva; c, " flaxseed ;" d, pupa, all very much enlarged ; e, fly ovipositing on leaf, natural size ; /, female, and g, male Hessian-fly, much enlarged ; i, the parasite, Mcrisus destructor, much enlarged. 22 Ji7

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbenefic, bookyear1906