Veterinaaria Pig Mange Control with Different Local Preparations

The realisation that arthropod moulting and metamorphosis are controlled by juvenile hormones led researches to suggest that such chemicals might be used both against plant pests and animal parasites (Robbins, 1972; Connat, 1988; Dryden, Neal, Bennette, 1989). As the naturally occurring juvenile hormones are unstable compounds in the environment, hundreds of synthetic preparations are prepared in several countries. To control pest arthropods, about 500 juvenoids have been prepared at the Estonian Institute of Chemistry at the Academy of Sciences. Some compounds which have been reported to have juvenile hormone effects in some insect species were applied in our tests.