COMPARATIVE EFFICIENCY of FOUR INSECT GROWTH REGULATORS to HOUSE FLY ABUNDANCE in PRACTICE

Abstract:
An efficiency of diflubenzuron, cyromazin, pyriproxypfen and methopren on the house fly populations were verified on the abundance of flies over 10 weeks in a pig delivery rooms and a calf houses. The larvicidal effectiveness of diflubenzuron was in range of 35-96 %. Cyromazin caused marked reduction 34-74 % in fly populations. In field conditions methopren and pyriproxyfen reduced the flies populations by 49-67, respectively 9-41 %. Chitin inhibitors – diflubenzuron and cyromazin were more effective in controlling the house fly populations. It was positive finding because the fly populations were resistant to a number of conventional insecticides. They are likely to become increasingly important in control regimes and they are a good candidates for supplementing traditional insecticide treatments in pig and calf units.