Ask a Question
Notify Me On Question Update
Email this Question
Why are my older pine and spruce trees dropping their needles?
Rate This FAQ
If the needles have turned yellow then brown or reddish in color and have fallen from the tip of the branches back to the trunk, it may be damage caused by drought, insects or winter injury. The dropping of older needles near the center of the tree is a natural process. During summer, water trees deeply and infrequently. In early fall and winter, apply adequate water as needed. Keep trees healthy. Borers and beetles attack trees in stress and may cause early death.
Submit Your Suggestion
Other Questions In This Topic
- How can I tell when my pears are ripe?
- I've noticed lots of caterpillars eating the leaves of my Birch trees--they look like inchworms. I've also seen them in neighbor's trees. Is there an infestation, and what can I do about it?
- I am an architect, working with a client who wants to hydroseed a 2.5 acre parcel for use as a softball field. The area is currently planted in alfalfa. There will be some regrading (both cut and fill) of the field that will be required. The client would still like to hydroseed this year, likely near the end of September. Do we need to call for the alfalfa to be treated with a herbicide? If so, what is the process, and what herbicide should be used? Is there a waiting period between application of the herbicide and the hydroseeding? Must the herbicide be applied to the above-grade plants, or can the site first be cleared, then the herbicide applied to the gound and roots?
- I have rings in my lawn that are about two feet wide. I suspect they are fairy ring, but the description for fairy ring doesn't quite fit. The inside of the circle is not lush and green, it looks the same as the rest of the lawn. There is just a semi-dead cirle surrounding good lawn. Do you have any help for me.
- Do you have tips on managing grasshoppers in my yard?
- What do the numbers on the fertilizer package mean?
- What is killing all the scrub oak and where can I find information on how to save the scrub oak I have that has not been affected by it yet?
- How late in the fall should I water trees and shrubs?