THE OX WARBLE FLY.

Manawatu Herald, Volume XXVIII, Issue 3580, 3 October 1905, Page 4

THE OX WARBLE FLY.

Beit and Moat Evident Way to 0«t Rid ot the Pent I» to Destroy the Maffgrot. Tin; warble or swelling on the back of cattle is caused by the larva of a fly which attaches its eggs to the hair on the legs, flanks and ..ock of the animal. These hatch and the lu,rrae establish themselves under the skin, usually on either side of the backbone. Here they feed upon the animal juices until ready to pupalc, causing the swelling or warble. When growth is completed the grub leaves the warble, drops to the ■ - a. /■ • under the most con-

venient sir cl ter, such as a piece of board, log, etc, and here transforms into the fly or adult stage. There is a difference of opinion as to how the grub gets unflertheskiin Some entomologists claim that the eg'i; is taken into the stomach by the animals licking themselves, hatch the : dhcring to the walls, then the grubs gradually work their way towar d the surface, where they remain until fully grown. Others hold that the eggs hatch where they are laid and the young larvae bury themselves at once

under the skin. Whatever method is employed t he results are the same. Tie. ; ; way to get rid of the pest is • . hh . . a -.; 7frol. h . ' h ' done I-’ll .... '.he ... r ... v . .•. . ......ckg of the liy in summer, a mixture of four '■uncos dowers of sulphur, one gill of spirits of tar with a quart of train oil rubbed along 1 the spine, loin* and ribs is useful. Train oil can be used alone. As the 11,y does not move about from place to place freely, it« eradication on individual farms depends almost completely upon the owner. — Orange Judd Farmer.