. Insect pests of farm, garden and orchard . a week. The Barred-winged Onion-maggot * The adult flies of this species may freciuently be found uponcorn and are readily recognized by the l)anded wings. They aresimilar in size to the last species, but the back is metallic l)Iue-greenexcept the head, which is mostly hoary, with brownish-l^lack maggots have been recorded as injurious to corn and sugar-cane and have been recently noted in Michigan associated withthe common onion-maggot, destroying The maggotsare similar to the onion-maggot but the posterior end is morerounded and
. Insect pests of farm, garden and orchard . a week. The Barred-winged Onion-maggot * The adult flies of this species may freciuently be found uponcorn and are readily recognized by the l)anded wings. They aresimilar in size to the last species, but the back is metallic l)Iue-greenexcept the head, which is mostly hoary, with brownish-l^lack maggots have been recorded as injurious to corn and sugar-cane and have been recently noted in Michigan associated withthe common onion-maggot, destroying The maggotsare similar to the onion-maggot but the posterior end is morerounded and may be distinguished from the illustrations. Thewinter is passed in the puparium as far as observed. Remedies.—In addition to the measures advocated for the last * Choetopsis aenea Wied. Family Anthomyidoe. t See Pettit, Bulletin 200, Mich. Agr. Exp. Sta., p. 200. 424 INSECT PESTS OF FARM, GARDEN AND ORCHARD species, the destruction of the affected onions and the thoroughplowing of affected land in the fall is of prime importance. Stored. au. Fig. 304.—The barred-winged onion-maggot {Chatopsis cenea Wied.): a,larva, with spiracular opening highly magnified at left; h, puparium;c, adult fly—all enlarged. (After Riley and_Howard, U. S. Dept. Agr.) onions which prove infested may be fumigated with carbon bisul-fide to destroy the maggots and puparia and prevent the emergenceof the adults. The Asparagus-beetle * This is a well-known pest of asparagus in Europe and was firstobserved in Queens County, New York, in 18G2, where it threatenedto destroy the asparagus, one of the most valued crops of the LongIsland truckers. Since then it has gi-adually spread northward tosouthern New Hampshiie, south to North Carolina, and west toIllinois and Wisconsin, and has been found at two points in Cali-fornia. There seems no reason why it should not spread towherever asparagus is grown, at least in the Northern States. The beetle is a handsome little creature about one-quarterinch long, blu
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