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Discuss some biotic causes of tree stress.


Sometimes I am asked, what do you mean "Biotic Stress is damaging my tree?" In order to answer that, it's important to understand that Biotic causes of tree stress are those related to living organisms.

It is common for a tree to be weakened by abiotic factors (things like rain, wind, temperature, altitude, soil, pollution, nutrients, pH, types of soil, and sunlight) and then to suffer from biotic factors (things like producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores).

For instance, a tree weakened by persistent drought is more susceptible to attacks by insects. Unless the underlying cause of the invasion is addressed, the problem will not be resolved. Many of the insects and diseases that attack deciduous trees focus on the leaves and are typically not fatal to the tree. However, if the tree's leaves are removed for several years in a row, then the tree will deplete its stored energy reserves.

Biotic factors are considerably more dangerous because they attack the tree's vascular system disrupting the transportation of nutrients and water. An insect that bores into the trunk of a tree may irreparably damage the vascular system...hence, Tree Stress.

Remember, if you have questions concerning your plants, trees, or "biotic or abiotic" issues...contact us today at 918-533-0063.

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