Show Cattle Grubs and I 1 Means of Control Young Stock Show v High Higher i. i Degree of Infestation Prepared by th tho United ura States Statu ee Department of Agriculture Few people connect the cattle grubs found under the skin on the backs of cattle with the adult insects known as heel beel flies or warble files Hies These insects Insects Insects In In- sects which are responsible for considerable considerable con con- loss because of reduced milk flow and grubby hides cause great annoyance to cattle particular particular- particularly ly when laying their eggs on the the legs of the animals From this point the larvae lanse which are hatched in from two and a half to six days burrow into the leg After a Journey of several months up the leg and through the bod body they reach a situation just underneath underneath underneath un un- the skin skill on the back from which the they emerge as fully matured grubs These grubs after burrowing into the soil boll or under loose material some thirty to sixty days dars later de develop devel- devel elop el- el op into flies files The foregoing facts are brought out In Department Bulletin No D 1360 The Cattle Grub or O Ox Warbles Their and Suggestions for Control Just Issued b by the United States Department of ture rhe The extent of infestation varies with the age of cattle young stock particularly animals from one to three showing a years old almost always s 's higher degree of infestation than mature mature ma- ma ture turu animals Different breeds show v no difference In susceptibility Housing of tire the ln l rd during the periods periods periods pe pe- of fly activity has been known greatly to reduce the Infestations The bulletin gives detailed Information informs informs- tion relative to this Insect its distribution distri effect upon cattle and man economic Importance control and possibilities of eradication Any Anyone one Interested In the subject may obtain free as long longas a a copy of the publication as the supply lasts by writing to th the United States Department of Agriculture Agriculture D D. D C. C ture Washington |