Cattle grub

Famphur is not now applied to forests or crops but is used almost exclusively as a veterinary chemical (Smith 1987). A single treatment controls cattle grubs and reduces cattle-lice infestations... 

Adult rations contained equivalent of 5 mg famphur/kg BW daily Adults given equivalent of 5 mg famphur/kg BW daily Adults given equivalent of 5 mg/kg BW daily for 10 days, administered as a 33%-feed premix Intramuscular injection 15 mg/kg BW Hereford steers and calves, Angus cows to control cattle grubs (Hypoderma lineatum,... 

After 24 h, mean residue of famphur in subcutaneous fat was 1.8 mg/kg FW, maximum was 2.46 mg/kg FW 87% effective in controlling cattle grubs in calves 100% effective in cows and steers... 

Campbell, J.B., F.W. Knapp, E.C. Loomis, DJ. Boxler, F. Herald, and L.L. Dunning. 1987. Efficacy of levamisole/famphur paste for control of cattle grubs (diptera oestridae) and gastrointestinal worms (nematoda trichostrongylidae). Jour. Econ. Entomol. 80 1028-1030. 

Khan, M.A. and G.C. Kozub. 1981. Systemic control of cattle grubs (Hypoderma spp.) in steers treated with Warbex and weight gains associated with grub control. Canad. Jour. Comp. Med. 45 15-19. 

Loomis, E.C. and R.C. Schock. 1978. Comparison of famphur (Warbex) pour-on and intramuscular injectable formulations for cattle grub control, California, 1975-1976. Jour. Med. Entomol. 14 649-651. 

Rotenone-containing insecticides have been used as dusts of ground roots, dispersible powders, and emulsive extracts. Their principal uses have been for application to edible produce just prior to harvest and for the control of animal ectoparasites and cattle grubs. 

Uses Technical coumaphos is a tan crystalline solid with a slight sulfur odor. The USEPA has grouped it under GUP. Coumaphos is extensively used for the control of a wide variety of livestock insects, including cattle grubs, screw worms, lice, scabies, flies, and ticks. It is used against ectoparasites, which are insects that live on the outside of host animals (e.g., sheep, goats, horses, pigs, poultry). 

Uses Trichlorfon is a pale, clear, white, or yellow crystalline solid with an ethyl ether odor. It is a solid at room temperature. Trichlorfon is grouped by the USEPA under GUP. Trichlorfon is used for the control of a variety of insect pests, (e.g., cockroaches, crickets, silverfish, bedbugs, fleas, cattle grubs, flies, ticks, leafminers, leafhoppers). It has extensive use in agriculture, applied to vegetable, fruit, and field crops. 

Hypoderma bovis (cattle grubs), which enter the hide anti cause annual losses of about S330 million in ihe USA, and considerably more in other major cattle-producing countries, can be controlled in nonlactating cattle by insecticide applications in sprays, pour-ons and spot-ons. 

The liquid products used to treat parasites topically are typically called pour-ons. Example products include ivermectin (Ivomec Pour-on for Cattle Top Line ) that can treat gastrointestinal roundworms, lungworms, cattle grubs, mites, lice, and horn flies. These are administered with special squeeze bottles that have dose-metering cups or application guns and are applied in a narrow line from the withers to the tail head in cattle. 

Some organophosphorus insecticides can be used to control animal ectoparasites by systanic action. They are sprayed on or fed to animals, after which they kill the insects (e.g. cattle grub) without harming the host. Compounds useful for this purpose include (12.109). Phosmet, bromofos and trichlorphon are also effective. 

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