Disease: Wood decay

Optimization and antifungal efficacy against brown rot fungi of combined Salvia rosmarinus and Cedrus atlantica essential oils encapsulated in Gum Arabic

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Researchers have developed a natural product that protects wood from fungal decay by combining oils from rosemary and cedar trees and encapsulating them in Gum Arabic using specialized techniques. This nanoencapsulation process creates tiny protective particles that are much more stable and effective than the oils alone. When tested against wood-damaging fungi, this product showed remarkable antifungal power comparable to commercial fungicides. This innovation offers a safe, environmentally-friendly alternative to synthetic wood preservatives for building and construction applications.

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Controlled inoculation provides insight into western redcedar resistance to multiple root- and butt-rot pathogens

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Scientists tested western redcedar trees with eight different wood-decaying fungi to understand which ones cause disease and how resistant the trees are. They used two methods to infect young trees in a greenhouse and tracked disease development over 18 months. They discovered that while some fungi caused visible damage, others caused hidden infections that still harmed tree growth even without obvious symptoms. These findings can help tree breeders develop redcedar varieties that better resist these diseases.

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Epidemiology, Biotic Interactions and Biological Control of Armillarioids in the Northern Hemisphere

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This paper reviews how armillarioid fungi, particularly Armillaria species, cause root rot disease in forests and orchards across the Northern Hemisphere. These fungi spread through underground root-like structures called rhizomorphs and can kill trees and damage crops over large areas. The authors discuss how to identify these fungi using modern genetic methods and explore environmentally friendly biological control options using beneficial bacteria, fungi, and nematodes as alternatives to chemical treatments.

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First Report of Trametes hirsuta, Causal Agent White Rot in Avocado Trees Grown in the State of Michoacán, México

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Researchers discovered a wood-destroying fungus called Trametes hirsuta causing serious disease in avocado trees in Mexico’s main avocado-growing region. The fungus attacks tree trunks and branches, causing white rot that can kill trees within 3-5 years. The study confirmed this is a new threat to avocado orchards and suggests controlling it through pruning, chemical fungicides, or biological control methods.

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Controlled inoculation provides insight into western redcedar resistance to multiple root- and butt-rot pathogens

mycolabadmin

Western redcedar is an economically important tree species suffering from fungal diseases that cause wood decay and significant financial losses. Researchers developed controlled methods to test how resistant young redcedar trees are to eight different decay fungi, finding that some fungi are much more damaging than others. Importantly, they discovered that some infections remain hidden without visible symptoms but still harm tree growth, and these hidden infections can be detected using advanced DNA-based methods. This research will help forest managers and breeders develop redcedar varieties with better disease resistance.

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First Report of Trametes hirsuta, Causal Agent White Rot in Avocado Trees Grown in the State of Michoacán, México

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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.

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