Circular 371
June 1964
GET RID
OF CATTLE GRUBS
IN BEEF CATTLE
FLY
PUPA
Published and distributed in furtherance of the Acts
of Congress of May 8 and June 30,1914, by the Cooperative
Extension Service of New Mexico State University, Philip
J. Leyendecker, director, and the United States Department of Agriculture cooperating.
Cooperative Extension Service
New Mexico State University
Get Rid
of Cattle Grubs
in Beef Cattle
Stanley Coppock
Extension Entomologis
The Problem
The common cattle grub, Hypoderma lineatuni,
is one of the worst livestock pests in New Mexico.
It causes a loss of hundreds of thousands of dollars a year. In its adult stage, as the heel fly,
the pest frightens cattle, making them restless and
causing them to lose weight. Much more serious,
however, is the damage done by the insect in its
grub stage- Then it reduces the value of the carcass for meat and makes holes throughout the
hide.
Life History and Habits
Ranchers notice cattle grubs most often as
warbles in the backs of cattle. The adult insect,
seldom seen by man, is a large bumble-bee like
fly. It darts quickly from animal to animal and
lays eggs on the hair of the legs, near the heels.
Upon hatching, the grubs work their way through
the skin and burrow through the muscles and tissues for 8 to 10 months before they appear as
warbles in the backs of the animals. In late fall,
the grubs cut holes in the hide and emerge
through these during the winter.
The grubs begin to emerge from the backs of
cattle in late November in the vicinity of Las
Cruces and in December around Clayton.
NMSU Cooperative Extension Service and Agricultural Experiment Station Publications
Digital Identifier
UAAPc0CI3710001
Is Part Of
Get rid of cattle grubs in beef cattle
Type
Text;
Format
image/tiff;
Language
eng
OCR
Circular 371
June 1964
GET RID
OF CATTLE GRUBS
IN BEEF CATTLE
FLY
PUPA
Published and distributed in furtherance of the Acts
of Congress of May 8 and June 30,1914, by the Cooperative
Extension Service of New Mexico State University, Philip
J. Leyendecker, director, and the United States Department of Agriculture cooperating.
Cooperative Extension Service
New Mexico State University
Get Rid
of Cattle Grubs
in Beef Cattle
Stanley Coppock
Extension Entomologis
The Problem
The common cattle grub, Hypoderma lineatuni,
is one of the worst livestock pests in New Mexico.
It causes a loss of hundreds of thousands of dollars a year. In its adult stage, as the heel fly,
the pest frightens cattle, making them restless and
causing them to lose weight. Much more serious,
however, is the damage done by the insect in its
grub stage- Then it reduces the value of the carcass for meat and makes holes throughout the
hide.
Life History and Habits
Ranchers notice cattle grubs most often as
warbles in the backs of cattle. The adult insect,
seldom seen by man, is a large bumble-bee like
fly. It darts quickly from animal to animal and
lays eggs on the hair of the legs, near the heels.
Upon hatching, the grubs work their way through
the skin and burrow through the muscles and tissues for 8 to 10 months before they appear as
warbles in the backs of the animals. In late fall,
the grubs cut holes in the hide and emerge
through these during the winter.
The grubs begin to emerge from the backs of
cattle in late November in the vicinity of Las
Cruces and in December around Clayton.
