Posts Tagged ‘disease’

Zoysia – Control Rust in Fall

Q: If rust is observed on zoysiagrass in fall is it worthwhile to treat with a fungicide or is it better to wait until spring and then apply the fungicide? Does rust have activity during winter cold season? What fungicide...

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St. Augustine Grass – SAD Virus

Q: My St. Augustine grass has pretty much disappeared since last year. What do you know about the SAD virus that might have caused this? A: As you might be asked in rural areas “You’re not from around here, are...

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Brown Patch – Not Spread by Mowers

Q: My son has a neighborhood lawn mowing service. Could he be spreading the brown patch fungus to our lawn on his mower blade? Should we be wiping the blade with alcohol each night? A: Your question makes good sense...

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Brown Patch – Causes

Q: My fescue lawn looked great until a few weeks ago. Now there are big yellow spots that seem to get bigger each day. Is this “Brown Patch”? A: Many homeowners blame any turf dead spots on a disease called...

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Hypoxylon Canker – Identification

Q: Could you please look at this problem with our white oak? In the last two months the bark has come off, leaving a brownish-gray powdery substance. I can scrap it off to the wood below. The gray stuff repels...

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Houseplant – Leaf Tips turning brown

Q: I have a Zebra plant and a Peace Lily that have leaves that seem to be dying and turning brown from the tips of the leaves. Eventually the leave turns brown about half-way up the leaf. The whole leaf...

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Pecan – Scab Disease

Q: I have two eight-year old pecan trees. The nuts turn black, sort of like mildew on the hulls. Is there anything special I can do to correct this. A: I’ll bet your trees have scab, a common disease of...

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Leaf Spot – On Poplar, Maple, Sweetgum

Q: I have a sweetgum tree in my back yard that appears to be dying. The leaves have all turned color as though it was fall and they have black spots on them. What is this? A: I’ve seen similar...

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Bean – Anthracnose

Q: My mother, who lives in Kentucky, is about to quit growing green beans due to some type of fungus that appears on them. My wife, who is a “Georgia Master Gardener”, identified this as being caused by saving the...

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Peach Trees – Pepper spots on Fruit

Q: My peach tree has hundreds of peaches not quite the size of tennis balls. The problem is half of the skin is perfect but the other half is sprinkled with black pepper-like spots. I began spraying the trees after...

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Leyland Cypress – Poor Watering

Q: I planted 4 Leyland Cyress trees last spring. By late summer one had turned pale green with droopy branches. The branches eventually turned brown and died. The landscaper who planted the trees replaced the tree in late fall. The...

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Lawn Maintenance – Doing it Yourself

Q: I’ve been paying more than two hundred dollars a year for a lawn service to fertilize and maintain the weeds in my bermudagrass. In order to save money I’ve chosen to do it on my own. Everyone tells me...

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Maple – Clawed by Cat

Q: I wonder if you could help me determine what is wrong with my Japanese maple. About 2 months ago, I noticed that the upper portion of the trunk looked like it had been clawed. At first I thought it...

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Kousa Dogwood – Fruit

Q: I would love to know the name of this tree. I took this picture at Stone Mountain Park near the Plantation parking lot. A: It’s a kousa dogwood. The fruit you noticed has been particularly prominent this year. I...

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Cherry – Canker

Q: I have a cherry tree on which I noticed a place oozing sap about halfway up the main trunk. I looked it up in a reference book and it diagnosed it as bacterial canker. The book says to prune...

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Zoysiagrass – Late to Green Up

Q: Why is zoysiagrass so late to green up each year? Our lawn looks like it isn’t coming in well.   A: Yes – in some years zoysiagrass won’t be completely green until June. It might be caused by several...

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Maple Eyespot Gall

Q: Can you tell me what this is on my maple tree? It seems to be on much of the lower foliage. Your advice on this strange phenomenon will be appreciated. A: You have maple eyespot gall. Although it looks...

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Rose Mosaic Virus

Q: Last year I purchased a climbing ‘Constance Spry’ rose which really grew quite large, over 15 feet, in one season. This year I have noticed that many of the leaves have yellow speckling and the very, very few flowers...

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