Ask a Question
Notify Me On Question Update
Email this Question
My pear tree has dead stems that curl downward. What is happening?
Rate This FAQ
Your pear tree possibly has a bacterial disease called fire blight. Fire blight is one of the most destructive diseases of apple and pear trees. Cool wet springs are the ideal conditions for this pathogen to spread. Fire blight primarily infects blossoms in spring time, and is spread primarily by insects but also by wind and rain. Spring symptoms include blackening on leaves, petioles and stems. The summer symptom that you see show up as dead brown foliage on entire branches, with the tips curving downward forming a shephard’s hook. Eventually, the pathogen moves down into the branch and forms cankers, which are sunken, dead areas of bark. Bacteria can sometimes be seen oozing out of a canker, especially in spring.
Homeowners can manage this disease using cultural practices. In winter or early spring, prune out all dead wood and remove it from your property. Prune out infections 8-12 inches below the diseased tissue and sterilize your pruning equipment between each cut with a 10% bleach solution or alcohol. In spring, scout for symptoms and prune out infected twigs and flowers as early as possible. If necessary, apply a copper spray when at ½” green tip. Follow the application guidelines on the pesticide label.
Submit Your Suggestion
Other Questions In This Topic
- What can I do now to prevent weeds in my lawn?
- I've neglected to do my "last mow" up to this point. We've already had several nights of light frost. My grass is long but I worry about causing even more damage by mowing at this late juncture, mid-November. Are there any risks to mowing grass after the first few frosts?
- What trees are recommended for West Jordan (clay soil).
- 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?
- How do I know when to pick my fruit?
- I have a son that lives in west Eagle Mt. We Put in sod for a lawn about two years ago and for two seasons it did great. Half of it is now dead and the other half is struggling. Prior to putting down sod, the ground was thoroughly tilled and lots of compost material was added (the kind that is made available in some green recycling yards and mixed with treated effluent from the sewage treatment plant.) Nitrogen was also added to the soil and the lawn was watered regularly. What has happened and what can I do to get a good lawn here?
- Is it healthy for Kentucky Bluegrass to be kept at a cutting height of 2 inches if a reel mower (as opposed to a mower with rotary blades) is used?
- Reveille grass seed. How good is this type of seed for the West Jordan area(Oquirrh shadows area)?