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#1
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I thought virburum`s were tough :-(
About two months ago I planted a Viburnum sargentii Onondaga, looking
at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese kate |
#2
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I thought virburum`s were tough :-(
"Kate Morgan" wrote in message ... About two months ago I planted a Viburnum sargentii Onondaga, looking at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese Could just be stressed by heat and drought, another possibility (hope I'm wrong) could just be be 'Sudden Oak Death' Viburnum seems to be one of the more susceptible genera to the fungus Phytophthora ramorum, a relatively newly discovered member of the Phytophthora group of fungi. This particular species is causing damage mainly to Oaks in the USA atm but has been found in the UK on ornamentals. Phytophthora species include many very damaging diseases (Potato Blight amongst others) of food crops, trees and ornamentals. That's about all I know on the subject atm but a web search should yield much more if you need to know. Rod |
#3
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I thought virburum`s were tough :-(
"Kate Morgan" wrote in message ... About two months ago I planted a Viburnum sargentii Onondaga, looking at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese Could just be stressed by heat and drought, another possibility (hope I'm wrong) could just be be 'Sudden Oak Death' Viburnum seems to be one of the more susceptible genera to the fungus Phytophthora ramorum, a relatively newly discovered member of the Phytophthora group of fungi. This particular species is causing damage mainly to Oaks in the USA atm but has been found in the UK on ornamentals. Phytophthora species include many very damaging diseases (Potato Blight amongst others) of food crops, trees and ornamentals. That's about all I know on the subject atm but a web search should yield much more if you need to know. Rod |
#4
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I thought virburum`s were tough :-(
About two months ago I planted a Viburnum sargentii Onondaga, looking at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese Could just be stressed by heat and drought, another possibility (hope I'm wrong) could just be be 'Sudden Oak Death' Viburnum seems to be one of the more susceptible genera to the fungus Phytophthora ramorum, a relatively newly discovered member of the Phytophthora group of fungi. This particular species is causing damage mainly to Oaks in the USA atm but has been found in the UK on ornamentals. Phytophthora species include many very damaging diseases (Potato Blight amongst others) of food crops, trees and ornamentals. That's about all I know on the subject atm but a web search should yield much more if you need to know. Rod I did wonder about that Rod, I will go off and do a search. kate |
#5
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I thought virburum`s were tough :-(
On Sun, 20 Jul 2003 13:57:04 +0100, Kate Morgan wrote:
About two months ago I planted a Viburnum sargentii Onondaga, looking at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese My guess is that it hasn't had enough water. I believe that viburnums do not like to go dry at the root, which is a risk with newly planted shrubs. -- Rodger Whitlock Victoria, British Columbia, Canada |
#6
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I thought virburum`s were tough :-(
About two months ago I planted a Viburnum sargentii Onondaga, looking at it today I find that a number of leaves are brown and dry, it looks like when things get cold but it can hardly be that this year. I cannot see any bugs and have looked in books but still dont know the reason, any help plese My guess is that it hasn't had enough water. I believe that viburnums do not like to go dry at the root, which is a risk with newly planted shrubs. I think that you are right, I have had a good look at it and there are no bugs and there is no die back, just crinkly leaves. I have had the hose pipe on a gentle trickle most of the day so hopefully that will do the trick, thanks for interest kate |
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