6533b854fe1ef96bd12ade16

RESEARCH PRODUCT

Metarhizium anisopliae, a potential agent for the control of grape phylloxera

M. PortenL. HuberMartin KirchmairHermann StrasserJ. Rainer

subject

biologyInoculationfungiBiological pest controlfood and beveragesMetarhizium anisopliaeFungusPathogenic fungusbiology.organism_classificationHorticultureDry weightAnimal ecologyInsect ScienceBotanyAgronomy and Crop SciencePhylloxera

description

This investigation deals with the control effects of the insect pathogenic fungus Metarhizium anisopliae var. anisopliae on Daktulosphaira vitifoliae. In pot experiments, the soil surrounding phylloxera-infected grapes was inoculated with barley colonised with M. anisopliae. After thirty-two days, ineight of ten Metarhizium-applied pots nofresh phylloxera infections could be observed.In two of ten plants, a few fresh nodositiessingly occupied with phylloxera or phylloxeraeggs could be found. In all untreated plants,fresh nodosities with either single (two of sixplants) or multiple (four of six plants)occupation with phylloxera could be observed.M. anisopliae could be re-isolated in aconcentration of <1 × 103 CFU g$minus;1 soil dry weight from those pots with phylloxera-infected plants that had been treated with the fungus. The potential role of M. anisopliae in grape phylloxera management is discussed.

https://doi.org/10.1023/b:bico.0000025387.13747.74