THE OX WARBLE FLY.

Manawatu Herald, Volume XXVII, Issue 3527, 27 May 1905, Page 4

THE OX WARBLE FLY.

Beat and Most Eillclcnt Way to Gel Bid of the Beat S« to Destroy ' t!u- .tiKKU'Ot. The warble or swelling on the back of cattle 1h caused by I lie larva of a fiy which attaches ib- lo 110- ImirVu the legs, Hanks and neck of the smmal. These hatch and the larvae establish themselves under the skin, usually on cither side of the backbone. Here they feed upon the animal Juices until ready to pupate, causing the swelling or warble. When growth is completed the grub leaves the warble, drops to the ground, crawls under the’ most con-

SECTION OP WARBLE, venient shelter, such as a piece of board, log, etc, and here transforms into ,the fiy or adult stage. There Is a difference of opinion as to l ow the grub gets under the skin. Home entomologists claim that the egg is taken into the stomach by the animals licking themselves, hatch there, adhering to the walls, then the grubs gradually work their way toward the surface, where they remain until fully grown. Others hold that the eggs hatch where they are laid and the young larvae buiy themselves at- once

DIFFERENT STAGES OF PUPA AND ADULT FLY. under the skin. Whatever method is employed the results are the same. The bcr.i . ay tc get rid of the pest is to kill the maggot. This may be clone by squeezing them out. I‘lace the thumbs near the base of the swelling and press Jinnly until] the grub is forced out. To prevent the attacks of the fly in summer, a mixture of four ounces flowers of sulphur, one gill ofspirits of tar with a quart of train oil rubbed along the spine, loins and ribs is useful. Train oil can be used alone. As the fly does not move about from place to place freely, its eradication on individual farms depends almost completely upon the owner.— Orange Judd Farmer.