Influence of soil management on mite populations in a vineyard agroecosystem

Autor: R. Nannelli, Marisa Castagnoli, Marialivia Liguori
Rok vydání: 1999
Předmět:
Zdroj: Ecology and Evolution of the Acari ISBN: 9789048152001
DOI: 10.1007/978-94-017-1343-6_53
Popis: Studies were conducted in two selected Chianti vineyards (Tuscany) during spring and summer of 1993 and 1994 to determine the effect of two soil management techniques (spring-summer soil tillage versus no tillage with natural herbage cover) on mite populations inhabiting vine leaves and the ground vegetation. The number of mites found on the ground vegetation was similar in both vineyards (approximately 9850 specimens/m2/sample), whereas on vine leaves in the vineyard with no soil tillage slightly more mites were found than in the other (0.33 and 0.26 specimens/leaf/sample, respectively). The highest number of predatory mites and the lowest number of phytophagous mites were recorded on vine leaves and on ground cover of the vineyard where no tillage was practised. The greatest variety of mite species was observed when traditional tilling methods were used. Tetranychus urticae and the phytoseiid mite Typhlodromus exhilaratus were the most abundant species in both vineyards and vegetation types.
Databáze: OpenAIRE