In the situation where the wood decay fungus is not in our PRO range or can not be identified on-site, we offer the isolation and identification of the fungus in our laboratory using the best DNA testing kits. To ensure this, we require samples of the fruiting body or rhizomorphs. Following the analysis, a tailor made Avengelus LAB product can be produced. By activating plant-derived antibodies, Avengelus LAB helps the trees defend themselves against wood decay fungi. In addition, the Trichoderma strain in the product competes with harmful fungi in the soil for space and food and can supplant these with its faster growth and parasitism.
Requirements for the sample
For the isolation procedure of the wood decay fungus, we require a fresh sample of the fungus for successful identification. Samples could be taken directly from the fruiting body, infected bark or rhizomorphs. For this, attention must be paid to disinfect hands and/or tools. Roots and decomposed wood are not suitable for analysis in our laboratory because they are partly soil and heavily contaminated with other bacteria or fungi. Attempts to reduce the amount of soil of the sample should be made to maximise the chances for successful identification of the harmful fungus. The fresh sample should then be carefully wrapped in newspaper and not stored in plastic bags. Plastic bags promote the development of mould, which additionally contaminate the sample. Samples are best stored in the refrigerator until the next possible shipping/transport (ideally on the same day as the collection).
NOTE: Insulation and identification of the pathogen can also be ordered separately – the cost per sample is CHF 770.- / EUR 700.-
Molecular biological determination
After receiving the sample and successfully isolating the wood decay fungus in the laboratory, dual culture tests are performed. In this way, different Trichoderma strains are tested against the wood decay fungus, from which a suitably conditioned product can be produced.
Revitalisation through tree treatment
Wood decay fungi grow and develop over years before loss of vitality becomes apparent. To compensate for the long stress period the tree is under and to keep the Trichoderma population at a high activity level, we recommend treatment over several years. Avengelus LAB products are applied 4 times a year at intervals of 4 weeks for a minimum of 4 years.