Scientists in Mexico discovered a wood-rotting fungus called Trametes hirsuta infecting avocado trees for the first time. The fungus causes white rot disease that damages tree wood and can kill trees within 3-5 years. Researchers found the fungus on 60% of avocado trees in Michoacán orchards and confirmed its destructive effects through laboratory tests. Treatment options include pruning infected areas and applying antifungal chemicals or biological control agents.