“horn fly”的意思、由来-百科全书

horn fly

insect

(Haematobia irritans), insect of the family Muscidae (order Diptera) and a serious cattle pest. Adult horn flies cluster at the base of horns and on the neck and rump of cattle and suck blood. Their attacks cause loss of weight and milk production in affected cattle.

The horn fly, about half the size of the housefly, breeds only in fresh cow dung; the life cycle requires 10 to 12 days. It was carried from Europe to North America in about 1887. Control methods include the use of chemical sprays and the addition of chemicals to the cows' diet to discourage horn flies from breeding in their dung.

词条	horn fly
释义	horn fly insect (Haematobia irritans), insect of the family Muscidae (order Diptera) and a serious cattle pest. Adult horn flies cluster at the base of horns and on the neck and rump of cattle and suck blood. Their attacks cause loss of weight and milk production in affected cattle. The horn fly, about half the size of the housefly, breeds only in fresh cow dung; the life cycle requires 10 to 12 days. It was carried from Europe to North America in about 1887. Control methods include the use of chemical sprays and the addition of chemicals to the cows' diet to discourage horn flies from breeding in their dung.
随便看	Kocaeli Koch Kochanowski, Jan Kocharian, Robert Koch Bihar Koch, C.J. Kocher, Emil Theodor Kocheril Raman Narayanan Koch, Frederick Henry Kochi Koch, Ilsa Koch, Kenneth Koch, Marita Koch, Martin Koch, Niels Fabian Helge von Kochno, Boris Kochowski, Wespazjan Koch, Robert Koch, Rudolf Kock, Paul de Kodaikanal Kodaira Kodaira Kunihiko Kodama Gentarō Kodiak