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CyberneticPanda t1_jbcmmkj wrote

No the lichens dont hurt the trees. Lots of trees have fungal diseases called x canker. They develop a sore that leaks sap at the infection site.

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Winstonthewinstonian t1_jbcsnzr wrote

Woa, didn't know about that. Very interesting thank you.

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CyberneticPanda t1_jbcv80s wrote

Np. The various fungal pathogens that cause tree cankers and other plant diseases are mostly carried around the world by the nursery trade. Plant local grown native plants!

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