Ask a Question
Notify Me On Question Update
Email this Question
I have tall thin Junipers in my backyard. They resemble a Hollywood Juniper but I am not sure of their species. They are 25 years old and have begun to look like they are dying, the needles are turning brown and falling off. Is there anything I can do to save them?
Rate This FAQ
Junipers are some of our most hardy landscape plants, but can develop problems when the weather is very hot (such as it has been this summer!) I suspect your junipers need more water. They are mature trees now,
and their root systems are probably quite extensive. Realize that they may have extended their roots outwards at least 25 feet (same as their height).So, if you have be watering only as much as usual, and these trees are
surrounded by lawn, they are probably heat stressed and need more water.
I usually recommend watering trees extra during the hot summer months, making sure to deliver the water over most of the root zone, applying the water slowly enough so that the soil is wet 12 to 18 inches deep. This deeper soil moisture will be available to the trees but not to the lawn grass, so you can be sure that the trees will be able to take it up. Soaker hoses are great for this purpose, since they emit water very slowly and the water can percolate down into the soil without running off down grade.
When junipers are stressed, they are very attractive to spidermites. You can check for spider mites by holding a white piece of paper under a branch, striking the branch sharply, and catching the "dust" onto the paper. Watch the dust a moment. If pieces of "dust" start crawling around, the tree is infested with spider mites. To control spider mites without significantly harming the beneficial mites and insects that prey on them, try spraying the trees with a sharp stream of water every few days. This, plus the extra water you will provide, will probably help the trees regain their vigor. A shot of nitrogen fertilizer over their root zone would probably help, too. Apply the fertilizer before doing the deep watering so that it reaches the deeper tree roots (and won't be "stolen" by the lawn grass).
Submit Your Suggestion
Other Questions In This Topic
- When is the best time of year to reseed my lawn? The weeds and spurge are out of control. Should I rototill the lawn to remove all the weeds first?
- What are the best cures for fungus type lawn diseases. We've tried infrequent deeper watering, which makes it worse, higher mowing in the hotter months, airation shoes, and everthing else suggested. We know we have clay under the topsoil.
- I live on 25 acres on the border of Summit and Wasatch Counties at an elevation of 7,000 ft. I need to add some trees to the landscape both evergreen and shade? What are good choices for my high and cold location?
- How and when can I transplant small, 6-12 inch and medium, 5 ft joshua trees? The latter is more important at this point since it would be a shame to lose 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 live in Riverton, and have areas in my lawn that are brown and sparse. I planted the lawn from seed, a Kentucky bluegrass blend I bought from a nursery, at least 10 years ago. It grows well in cooler weather, but by summer it looks dead in patches and is stiff, not soft lawn for the kids to play on. I would like to put down some patch seed, but don't know what kind to use and how is the best way to plant. Do I have to take out the old lawn or can I just sprinkle it on and cover with a little bit of soil. Also, is there any way to control the wide leaf weed that grows throughout my lawn as well as the entire neighborhood?
- We have thousands of little green worms/caterpillars hanging from webs in our trees, eating the leaves til they are bare. What can we do to get rid of them?
- Do you have tips on managing grasshoppers in my yard?