|I have a large flower bed in my front yard with about 20 Lenten roses planted around the perimeter. About 2 weeks ago, the one closest to the walkway just died. I mean, it turned brown and crubly split in the center and fell to the ground. Now the second one is starting to do the same thing. What could the problem be? These LR's have been planted for probably 5-6 years, but about 2 1/2 months ago the 50ft bradford pear that was in the center of the bed collapsed and fell. We have since replanted 3 15ft. red maples in it's place, but it isn't as quite as shady. could that be the cause or do you think they have some sort of disease?|
A sudden change in light intensity has detrimental effects in many cases. It changes not only light levels but also temperature and water use. So that could be the cause. However based on the symptoms you might also consider soggy wet soil conditions or some type of root rot. Your County Extension Office can assist you with diagnosing root rot on plants. Call them to see if you need to bring a sample in or just send it to the state lab and to find out any charges or paperwork that might be required.
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