African trypanosomiasis in cattle represents a major constraint to agricultural and socio-economic development in vast areas of Africa. The disease is caused principally by three species of trypanosome (Trypanosoma congolense, T. vivax a... WI Morrison,M Murray,WIM Mcintyre - Springer Netherlands 被...
sprayingAn account is given of an attempt made on a farm in Britain to control warble flies (Hypoderma) by spraying the oviposition sites on cattle repeatedly with BHC (benzene hexachloride) to kill either the adult fly, the egg or the. newly hatched larva. One application of DDT had been...
beef cattle 2 beehive 1 beer 9 bees 6 bells 1 below 2 belt 2 belts 2 bench 3 bend 1 beret 1 Berkshire 2 berries 36 berry 22 Bessastadir 1 better 2 Betula 1 Betulaceae 1 Between Mountains 1 beverage 64 bi 5 bicycle 70 bicycle race 1 bicycles 11 ...
Holroyd RG, Hirst DJ, Merrifield AW, Toleman MA. The effect of spraying for buffalo fly (Haematobia irritans exigua) on infestations, growth rate and lesion development on Bos indicus x B Taurus cattle in the dry tropics of north Queensland. Aust J Agric Res 1984;35:595-608....