Natural Needle Drop on Conifers

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We are starting to see very noticeable natural needle drop on some evergreens such as arborvitea, pines and spruce. This is a process where 2- to 4-year-old interior needles turn yellow, then brown, and eventually drop off. Those who aren’t familiar with this process often are concerned about the health of the tree. This is a natural phenomenon that occurs every year and does not hurt the tree.  However, some years it is much more noticeable than others. Be sure to check that only the older needles are affected –the needles on the tips of the branches should look fine–and that there is no spotting or banding on the needles that are turning yellow. If spotting or banding is noted, take a sample to your local county extension office for diagnosis. You can find the location of your local office at http://www.ksre.k-state.edu/about/stateandareamaps.html(Ward Upham)

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