Once the nematodes have invested the pine tree, treatment is too late.
Do be concerned, however, if your tree is losing needles at the branch tips. These needles are young and have not out-lived their usefulness. The culprit is probably some type of disease or insect. So, if one-third to one-fourth of the needles on the inner parts of your evergreen tree are falling off, it is probably just a normal sign of aging. Jan 25, A tree that is still dropping green, healthy tips now is squirrel damage, as they stay active all winter.
If you have fresh samples now, you can submit them to MSU Diagnostic lab for an opinion. Include the submission form from the website, and pictures of the whole tree. This service is usually free, or sometimes has a small fee. Jan 31, Squirrels are notorious for biting the ends off of spruce branches. They will feed on spruce buds on the fallen branch tips. They don't chew through all the tips successfully and damaged ones fall off when the wind blows.
There is nothing you can do because squirrels move from tree to tree with property boundaries being of no consequence.
Q: I have short 6 to 8 inch pieces of my pine tree falling off. The ends look like they have been chewed through. I have over 24 of these section laying under the tree. The tree is large with a base of over 24 inches. What is happening? A: I crowd-sourced your question to my Georgia Gardener Facebook fan page: Post by Georgia Gardener. Dec 07, If your pine tree has browning or falling needles, you first need to identify the cause in order to help treat the issue.
The spores are then spread by the wind or rain and infect healthy needles throughout the growing season.
In an indoor pine tree, brown needles are typically a result of a lack of humidity or too low of a temperature. For an outdoor pine tree, browning needles are usually a sign of either waterlogged roots or a drought.