Influence of some plant products on the development of pig mange mites (Sarcoptes scabiei var. suis)
2000
Maegi, E. | Kaarma, A. (Estonian Agricultural Univ., Tartu (Estonia). Faculty of Veterinary Medicine)
In order to work out a theoretical basis of swine sarcoptosis control, the possibilities for the use of several plant products as natural pesticides were investigated. Eight preparations containing antiparasitic poisonous substances were applied in our trials. Farm tests on the viability of swine sarcoptic mange mites were carried out. Our investigations were made on the effect of tea tree, black pepper, juniper, garlic, cow parsley, mugwort, nettle and calamus. According to the results, compared with the control variant, all the tested plant products proved to be more or less lethal to mange mites. The most effective preparation was tea tree oil - already after 1 week more than 70 per cent death rate of mites was registered. The treatment of pigs with cow parsley, calmus and garlic also proved to be effective against sarcoptic mange mites. The application of natural plant extracts containing poisonous, repellent or antijuvenile substances for arthropod parasites could diminish the number of parasites and their eggs by up to 10-20 per cent in four weeks. The dilutions of nettle and mugwort occurred to be less effective against the mites but they reduced markedly the clinical symptoms of sarcoptic mange
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