[from occupied ga]

Trees do communicate. Squirrels are the enemy of pine trees in that large squirrel populations eat most of the seeds that pines need to reproduce. Pine trees have evolved a method to deal with squirrels - namely starvation. Periodically all the pine trees in a forest will not produce cones causing a massive crop failure and a precipitous drop in the squirrel population. It’s thought that the trees synchronize the timing of this is root grafts that occur naturally when pines are in close proximity.

[alexander_busek]

Scientists film plants ‘talking’ to each other

Squirrels are the enemy of pine trees [...]

Regards,

[Jamestown1630]

That’s interesting; it is thought that oak trees use a kind of reverse technique - periodic mast years.

https://www.woodlandtrust.org.uk/blog/2020/10/what-is-a-mast-year/