Polypore of the pine

The polypore of the pine ( Heterobasidion annosum , synonymous Fomes annosum ), also called " old Amadouvier " or " Polypore ringed " , is a nonedible Champignon racinaire Parasite. It is responsible for the " Disease of the round " who has devastators effects on the Résineux (spruce, Maritime pine and Sapin of Vancouver in particular).

The economic impacts of this mushroom are such as research Génétique S are in hand to facilitate its eradication.

Description

Its sometimes tortuous forms and its contrasted colors do not pass unperceived.

Its hat in the shape of kidney can reach 20 cm in diameter. It is fixed by with dimensions at the base of a Tronc of tree living or on a stock (it becomes Saprophyte then). The top is zone châtain with brown black, the margin is white.

The lower part is made of tubes of white color to cream laid out in layers.

The flesh is yellowish with the aspect of Liege.

A pH of the ground higher than 6 facilitates its development.

Treatment

The only method of fight against the disease of the round is the white-washing of the fresh stocks with a solution of Perlurée (urea) to 37%, with a solution of Bore to 5% (trade name: POLYBOR or SOLUBOR) or an antagonistic mushroom such as Phlebiopsis gigantea (trade name: ROTSTOP) with 1g/l. The success of the treatment depends on the speed of its application after demolition. To be effective, the application must be carried out at once after demolition and renewed with each break (or routing) until the final cut included.

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