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
- I am actually in Colorado, I am interested in the zone(s) in Eden. I am designing a landscape there and want to plant accordingly. I, also, am interested in a list of noxious plants, I'd like to avoid them. Thank You!
- I notice groups of about 4 or 5 pine needles buried into the flower beds and am wondering what type of bug is pulling them into the ground in the fall. They do not get ther naturally because of the way they are sticking out of the ground. Half buried. I am just wondering what creature this might be and do I need to do something about it?
- How do I get rid of wild morning glory?
- What is anthracnose?
- I have a large Pinion pine that we trimmed back the lower branches on last fall, The grass is not doing well there due to limited light, could I add a flower bed there instead, and if so what type of plants would do well in my VERY clay soil. Also isnt' there something about not planting flowers over/next to a tree trunk? thanks
- Why are my older pine and spruce trees dropping their needles?
- I want to make a portion of my yard a 0scape environment. How do I prepare the area so that the grass/weeds to not take over? What tools will I need to make the soil acceptable? What time of year is best to plant new plants for this area?
- Our scrub oak is taking over our view, but efforts to trim have resulted in visible cuts and dead branches near the cuts. Do we need a professional, or can it be done well by a lay person?