Colonization of Languedoc vineyards by phytoseiid mites (Acari: Phytoseiidae): influence of wind and crop environment

摘要: A natural increase of phytoseiid mite populations (Kampimodromus aberrans, Typhlodromus pyri and Phytoseius plumifer) was observed in vineyards Languedoc, Burgundy Corsica under integrated pest management strategies. The aim the present study to characterize mechanisms this colonization space time Languedoc. abundance mites vegetation close three grape fields determined twice a year (May July). Aerial (funnels with water) soil (felt strip) traps were placed around fields, order assess potential provided by aerial dispersal ambulatory locomotion. crops studied month gain information on make up populations. species K. aberrans found largest quantities traps, crops. Predatory occurred essentially dependent wind intensity direction. Identical sex ratios migrant woody areas hedges. large proportion immatures move dispersal. (rapidity, regularity) directly associated phytoseiids proximity vegetation. deep, dense tall area containing suitable host plants for predatory constituted most stable source mites. Natural provides considerable that could be managed an agricultural landscape.