Individual animals can show
toxicity to certain pesticides and
other materials in pesticide formula-
tions. Sensitive animals should not
be treated or should be treated only
with pesticide formulations non-toxic
to the animal. Brahman beef cattle
can show sensitivity to some organic
phosphate insecticides. For this
reason, organic phosphate pesticides
should not be applied to these
animals if so indicated on the pesti-
cide label. Pesticides should not be
applied in combination with other
pesticides unless so stated on the
label.

 The skin of some horses is
extremely sensitive to various pesti-
cide formulations. Before treating
horses, it is recommended that a
small patch of skin on each animal be
treated with pesticide formulation
approximately 24 hours before the
entire animal is treated.

 RESIDUE POTENTIAL

 Follow closely the label re-
commendations for time intervals
between application of pesticides
and slaughter or marketing. Failure
to do this can result in illegal
residues. The animals may be con-
fiscated and you could be prosecuted.

 PESTICIDE FORMULATIONS

 Consider the pesticide formulation
when treating animals. Sprays are
generally suited for treating most
animals. Do not let oil sprays
penetrate the hair to the animal's
skin.

 PESTICIDE APPLICATION

 When using contact insecticides


for external parasites, be sure the
insecticides reach the pest. When
treating for lice, mites and ticks,
use 100-200 pounds of pressure. As
the pesticides normally kill only
the adults and not the eggs, retreatment
is usually needed to kill the newly
hatched pests. In grub spray
treatments, the skin of the animal
and not just the hair must be
thoroughly wetted. Spray pressures
of 200-400 psi are recommended
depending upon the thickness of the
animal's coat.

 For applying liquid contact
insecticides use:
- power sprayers
- knapsack sprayers
- compressed air sprayers
- rubbing devices (back and face
 rubbers)

 Dust may be applied in the same
way or applied by hand. Systemic
insecticides are picked up and trans-
ported throughout the animal's
system. They can be applied by:
- pour-ons
- spot-ons
- sprays
- feed additives
- dipping vats and spray dip
 machines

 PESTS OF AGRICULTURAL ANIMALS

 Agricultural animals are attacked
 by mites, ticks, flies, lice, and
 other insects, as well as vertebrate
 pests. These pests affect animal
 productivity by:
 - killing animals
 - spreading disease agents
 - causing diseases
 - causing loss of blood
 - causing anemia
 - reducing weight gains