[IBC] Acer mould!! Help!
Hi.
I have just noticed that some of my acers have a light white/grey mould in dots on some of the leaves. any ideas on which fungicide or bacterialcide I could use to get rid of this mould? You probably should ID what it is first. I don't think the UK has such things as Agricultural Extension Agents, but if you can find a plant disease expert you'd do well to take some leaves in to him or her. Maybe a nursery could help. Meanwhile, try not to water the trees from the top -- wetting the leaves. Alcohol on a swab and wiped on the leaves can get rid of a light infection (TEST a leaf first to see if damage occurs after a day passes!). Move the trees into full sun, at least for a while. Jim Lewis - - Tallahassee, FL - Only where people have learned to appreciate and cherish the landscape and its living cover will they treat it with the care and respect it should have - Paul Bigelow Sears. ************************************************** ****************************** ++++Sponsored, in part, by John Quinn++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
[IBC] Acer mould!! Help!
I have just noticed that some of my acers have a light white/grey
mould in dots on some of the leaves. any ideas on which fungicide or bacterialcide I could use to get rid of this mould? Doesn't sound like bacteria, so scratch that off the list. Are you sure it isn't a mineral deposit? Even highly trained plant pathologists can mistake a crysalline mineral deposit for powdery mildew. Examine with a handlens; if that doesn't clarify thi ngs, wet with water and rub gently; if the spot returns in a day, it's not a mineral deposit. And if it's not a mineral deposit, you need to find out what it is, and THEN figure out what treatment to use. If it's powdery mildew, better air circulation may be the solution. --- Nina Shishkoff, highly trained plant pathologist. ************************************************** ****************************** ++++Sponsored, in part, by John Quinn++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
[IBC] Acer mould!! Help!
At 08:34 AM 6/8/04 -0400, Nina Shishkoff wrote:
Doesn't sound like bacteria, so scratch that off the list. Are you sure it isn't a mineral deposit? Even highly trained plant pathologists can mistake a crysalline mineral deposit for powdery mildew. ... How true. Nina will appreciate this. Last year, during my annual Ag inspection, the inspector brought one of the hotshots from the state with him to see the nursery. They did all the usual stuff, found a few interesting plants, a few bugs, a few small spots of disease. Just before they left, the hotshot discovers a small bit of whitish fuzz on the stem of a Japanese maple. He gets all excited, calls over me and the inspector. Gets out his hand lens and stares intently at it. Being me usual rotten self, I let him ponder awhile. Finally he says "what IS this stuff". It's spun polyester that has wrapped around the branch from the Remay crop cover. Brent in Northern California Evergreen Gardenworks USDA Zone 8 Sunset Zone 14 http://www.EvergreenGardenworks.com ************************************************** ****************************** ++++Sponsored, in part, by John Quinn++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
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