Walk softly through the forest

Fungi sense and respond to various stimuli such as light, chemicals, and touch. A relatively new discovery indicates they also have a connection to sound. Low frequency sounds seem to increase productivity of plants.
Sound waves can be used to stimulate growth of mycorrhizal fungi in the soil to enhance plant growth. ​It is the mycelium, those tiny white hairy tendrils, that responds to sound waves. 
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Research has shown that high frequencies of sound are capable of inhibiting growth of the mycelium, eerily similar to how high-pitched noises can deafen us.