Effect of Heating or Drying on Armillaria mellea or Trichoderma viride and the Relation to Survival of A. mellea in Soil

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Abstract
Sublethal heating of infested roots in soil reduced survival of A. mellea. Similar heat treatments did not produce measurable secondary effects on living peach [Prunus persica] or citrus [Citrus spp., Poncirus trifoliata] trees. Drying of infested root segments followed by burial in soil likewise decreased the survival of this fungus. On agar medium, A. mellea was more sensitive to increased temperature than was its antagonist, T. viride. In orchards, indirect control of A. mellea by heat treatment followed by action of fungal antagonists on the weakened pathogen may be possible.

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