Ask a Question
Notify Me On Question Update
Email this Question
We have lost 2 pine trees and are now loosing our quaking aspen. It has black spots on leaves and trunk has back on it also. The leaves are falling off. Is there anything that can save the tree?
Rate This FAQ
Black spots on your Quaking aspen could be a fungal disease called aspen leaf spot. The symptoms of this disease start out with small dark brown spots with light centers. These spots will spread and eventually grow together and in severe cases the leaves may die and fall off. Most aspens will survive this disease but it can weaken them, making them susceptible to other problems.
Below are two links. One that has some pictures of what aspen leaf spot symptoms look like and one with more information on the disease.
Control of this disease isn't easy but there are some things that you can do to help your tree out. Make sure to pick up and discard any fallen leaves. This will help reduce the spread of the fungus. Also, when working around the tree make sure that the lawnmower and weed eater do not run into it and damage the trunk. And when watering the tree try to avoid getting water on the leaves. Below is a link with more information on watering trees.
You can also apply a protective fungicide spray at bud break and to the newly emerging foliage next spring. If you choose to use a fungicide make sure that aspen trees are specifically mentioned on the label. There are some recommendations on products that can be used included in the second link above.
If this does not look like the problem your tree is having bring a sample into our office. We will help to identify the problem. Our address is 2001 S. State Street #S1200.
Submit Your Suggestion
Other Questions In This Topic
- Can you tell me how to get rid of the Star of Israel that is in your lawn?
- We live in a suburb near the mountains and have a lot of deer wandering through our neighborhood eating our flowers and vegetable gardens. They are not afraid of people and walk through our backyard any time of day. What can we spray on the garden plants to stop them from eating them?
- Looks like my potted tomato plants have Fusarium Wilt and will soon die. 1)Any thing I can do to save the plants and soil? 2)Can I eat the tomatos?
- We have creeping mountain sorrel in our lawn and can't get rid of it. Do you have any recommendations on products that might kill it, or any other ways to get rid of it?
- Our neighbors have recently cut down a Globe Willow and A Lombardy Poplar. They did not remove the trunks and the roots are not popping up in our lawn. Is there anyway for us to stop this from happening? These people are not the fastest movers and I have a feeling that the trunks will never be fully removed. These roots have already started to push up our concrete and have left runners down our lawn.
- I just moved to SLC from Phx,Az and many of the plants here are new to me. I have some flowers in my yard that resemble "Blue Dicks" closely but, the flowers do not cluster -- they each form on a single stem and have been flowering since the end of April. I also have some Violet-like flowers growing in my lawn at about the same height as the grass. I would like to know what they might be and where I might be able to purchase seed or bulbs of the same type so I can plant more
- Please suggest some good bush rose varieties (not reds)- 3-4'high and 4' wide for a border planting in front of my home. I live in Holladay. Also, will a variegated dogwood tree grow well here if not in full sun?
- I have a large, old walnut tree in my front yard. The bark on the east/northeast side of the tree is separating from the trunk. Is this a sign of disease or other problems? And can I peel the bark off the tree or will that hurt the tree?