Ask a Question
Notify Me On Question Update
Email this Question
When do I spray my cherry tree to prevent worms?
Rate This FAQ
The best thing to do is to check the USU Fruit Tree IPM(Integrated Pest Management) Advisories that are emailed weekly to subscribers, or you can check online.
To check advisories go to http://utahpests.usu.edu/ipm/htm/advisories/treefruit
To subscribe go to http://utahpests.usu.edu/ipm/htm/subscriptions
As of May 6th advisory, the degree day accumulations in Salt Lake are 500 & 517. See next excerpt:
The timing of your spray depends on the development
of the fruit. We usually recommend starting applications at
1060 degree days after March 1 (base 41). However, the flies
cannot penetrate the skin of the cherry to lay eggs until the
cherry has developed a salmon-blush color. So use that guideline
for when to start spraying. Check the fruits at the top of
the tree and in the sunniest locations as these will color up
This excerpt came from last year (20080 advisory, go to http://utahpests.usu.edu/ipm/files/uploads/AdvisoryUpdates/Advisory08/Fruit-IPM-05-28-08.pdf to see photo of cherry fruit appearance for timing of spray.
So as temperatures go up and degree days accumulate, you'll want to spray at total of 1060, and advisories have that information weekly.
Submit Your Suggestion
Other Questions In This Topic
- i bought my house in november it had no grass just a huge goat head problem. I have burned, scraped, and sprayed a couple of times. Three weeks ago I planted grass seed, my lawn looks great thick and about 4 inches tall, but now I have goat heads growing all over. Do you think 2-4-D weed killer would work without hurting my lawn or do you have another suggestion?
- Two questions; I have an dwarf Honey Crisp apple tree that is about 5 years old. Last year it had a dozen apples. I didn't disturb the fruit spurs when I picked the fruit. This year there were no blossoms on the tree. I didn't prune it at all. What can I do to help it produce every year? Second question; I have peach borers in the main branches of my nectarine tree. The tree seems healthy other than the borers. What can I do about them at this point? Will it help to dig them out? Will it help to spray? Will they winter over to next year?
- I have some problems with native Juniper trees dying(25 ft average height). They start turning yellow (chlorosis has been ruled out) then brown on south side first, then slowly spread to north end of plant. I have cut down one and found no signs of insect damage or disease. Only trees located next to a dirt road(South of trees) are currently affected. They started changing in color last summer. The county does spray for russian thistle on road. Yet no other trees seem to be affected. Can you provide other possible reasons or someone that may be able to come and see them (test them)?
- I have built a terrace at the back of my garden and would like to start a grape arbor as a natural fence between my yard and my neighbor. What grapes would do well and how do I go about starting an arbor? What kind of fencing would I need?
- I live in Sanpete county. The winters are very cold and I frequently have winter kill of my roses, and perennials, especially on the South side of the house. Could you give me a basic "Yard & Home Winterization" list of things to do to prevent this and other winter issues?
- I think I have Johnsongrass invading my back lawn. I has sprayed the usual Crabgrass/lawn grassy weed killer on it and it is still taking over my entire lawn. What can I do?
- I live in East Murray, West Holaday, Salt Lake County. We have a large pine tree and want to plant some flowers under/near it. The plants would be along a fence that runs to the east of the tree. Some, very little west sun in the evening. Any suggestions? I would love some long lasting flowers.
- What trees, perrenials, shrubs etc... grow best in Utah (landscaping yard)?