Effects of the fungicide preparation Vitra 50 HR on the syrphid coenose (Diptera: Syrphidae)
Keywords:
Diptera, Syrphidae, fungicide, species composition, communityAbstract
This study examined the impact of the fungicide preparation Vitra 50 HR (with an active substance copper hydroxide (Cu (OH)2) with concentration of 87.7%, produced by Industrial Quimical del Valles, Spain) on the syrphid coenose in a potato agroecosystem. Preparation’s influence was tested on the species composition of the syrphid flies in quantitative and qualitative relation, density of populations of the different species, total average density, dominant structure and some basic characteristics of the species structure of the communities. The studied fungicide has relatively light impact upon the basic indices of the syrphid coenose only during the first one to three days after its application, which appears to be quickly surmounted.
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