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#1
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Odd marks on leaves
While I was weeding the plot this morning, I noticed sky blue marks on broad
bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta -- Pete C |
#2
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Odd marks on leaves
On 2013-06-03 15:09:24 +0100, Pete C said:
While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta Has someone been using Bordeaux mixture near your plants? -- Sacha www.hillhousenursery.com South Devon www.helpforheroes.org.uk |
#3
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Odd marks on leaves
"Sacha" wrote in message ... On 2013-06-03 15:09:24 +0100, Pete C said: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta Has someone been using Bordeaux mixture near your plants? Nope, but good guess -- Pete C |
#4
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Odd marks on leaves
"Pete C" wrote in
o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Baz |
#5
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Odd marks on leaves
"Baz" wrote in message ... "Pete C" wrote in o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Thanks Baz. Not keen on sprays if I can help. Will wipe all the leaves clean tomorrow and see what happens. -- Pete C |
#6
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Odd marks on leaves
On 03/06/2013 20:22, Pete C wrote:
"Baz" wrote in message ... "Pete C" wrote in o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Thanks Baz. Not keen on sprays if I can help. Will wipe all the leaves clean tomorrow and see what happens. Why spray with an insecticide? |
#7
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Odd marks on leaves
"Pete C" wrote in message o.uk... While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta Up here we are in a jet aircraft training zone and spotting of leaves is a regular occurence from excess jet fuel ejection. The spots start off as irridescent blue on wet leaves, but after a day or so the spots turn black. Gardeners locally have lost all their vegetables after a particularly bad event and even when analysis has shown jet fuel to be the culprit, the RAF have denied all knowledge. Phil Northern Highlands of Scotland (Area 14 training zone) |
#8
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Quote:
It's almost certainly the result of someone spilling something on the leaves, and the aviation fuel theory sounds the most likely. Not something I'd ever heard of, so good to know about it. The wiping off with wet finger suggests the best thing to do would be to chuck a bucket of soapy water over the whole lot and try to get rid of the stuff before it can do any damage.
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#9
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Odd marks on leaves
David Hill wrote in
: On 03/06/2013 20:22, Pete C wrote: "Baz" wrote in message ... "Pete C" wrote in o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Thanks Baz. Not keen on sprays if I can help. Will wipe all the leaves clean tomorrow and see what happens. Why spray with an insecticide? Why not? Do you have a better idea? I have found that a dose of Provado Ultimate Bug Killer does the job in most cases where the cause/pest/parasite/fungi is not known. So if it works for ME, it should work for others. Baz |
#10
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Odd marks on leaves
On 04/06/2013 13:03, Baz wrote:
David Hill wrote in : On 03/06/2013 20:22, Pete C wrote: "Baz" wrote in message ... "Pete C" wrote in o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Thanks Baz. Not keen on sprays if I can help. Will wipe all the leaves clean tomorrow and see what happens. Why spray with an insecticide? Why not? Do you have a better idea? I have found that a dose of Provado Ultimate Bug Killer does the job in most cases where the cause/pest/parasite/fungi is not known. So if it works for ME, it should work for others. Baz if the blue spots wipe off then I'd just dose the plants with a soapy wash in the first instance.]In all my years I have never come across an insect leaving blue spots on a plant, and as you yourself say Provado is not friendly. I use sprays as a method of last resort. Gone are the days where plants were sprayed with fungicide one week and insecticide the next every fortnight through the growing season. Strange thing is that in those days bees thrived. David @ the sunny side of Swansea Bay |
#11
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Odd marks on leaves
David Hill wrote in
: On 04/06/2013 13:03, Baz wrote: David Hill wrote in : On 03/06/2013 20:22, Pete C wrote: "Baz" wrote in message ... "Pete C" wrote in o.uk: While I was weeding the plot this morning, I noticed sky blue marks on broad bean leaves. On further inspection, I found the same on French beans and peas. Some just spots, others about 5p size. It wipes off with a wet finger. Any ideas as to what this could be? Ta I have no idea what this can be. BUT I would spray them with Provado Ultimate Bug Killer. Yes I know that it is not friendly. But what else can you do? Catch 22 situation. Beans or no beans? I hate these decisions, but usualy spray if my plants are threatened. Thanks Baz. Not keen on sprays if I can help. Will wipe all the leaves clean tomorrow and see what happens. Why spray with an insecticide? Why not? Do you have a better idea? I have found that a dose of Provado Ultimate Bug Killer does the job in most cases where the cause/pest/parasite/fungi is not known. So if it works for ME, it should work for others. Baz if the blue spots wipe off then I'd just dose the plants with a soapy wash in the first instance.]In all my years I have never come across an insect leaving blue spots on a plant, and as you yourself say Provado is not friendly. I use sprays as a method of last resort. Gone are the days where plants were sprayed with fungicide one week and insecticide the next every fortnight through the growing season. Strange thing is that in those days bees thrived. David @ the sunny side of Swansea Bay I understand and respect your point of view. My veg. garden will survive come what may. If I use chemicals I feel that, OK, I might not be the greenest gardener in the world, but not the worst. My sprayer is the only tool between having a crop and not having one in some cases. Baz |
#12
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Odd marks on leaves
UPDATE
On further inspection today, I found it on swede and strawberries too. It all washed off with a watering can. I checked half a dozen plots either side....nothing. Then I realised the affected beds are all adjacent to paths. Getting paranoid now....who have I upset? -- Pete C |
#13
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Odd marks on leaves
"Pete C" wrote in
: UPDATE On further inspection today, I found it on swede and strawberries too. It all washed off with a watering can. I checked half a dozen plots either side....nothing. Then I realised the affected beds are all adjacent to paths. Getting paranoid now....who have I upset? I doubt that you have upset anyone. It IS puzzling though. Let's see what happens in the next day or two. Eh? Could it be as Sacha said, Bordeaux mixture near your plants? Baz |
#14
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Odd marks on leaves
"Baz" wrote in message ... "Pete C" wrote in : UPDATE On further inspection today, I found it on swede and strawberries too. It all washed off with a watering can. I checked half a dozen plots either side....nothing. Then I realised the affected beds are all adjacent to paths. Getting paranoid now....who have I upset? I doubt that you have upset anyone. It IS puzzling though. Let's see what happens in the next day or two. Eh? Could it be as Sacha said, Bordeaux mixture near your plants? No, def. not Bordeaux. It's only a small site, AFAIK, I'm the only one who uses it.....and no Smith period this year. Hey ho -- Pete C |
#15
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Odd marks on leaves
On 04/06/2013 19:36, Pete C wrote:
"Baz" wrote in message ... "Pete C" wrote in : UPDATE On further inspection today, I found it on swede and strawberries too. It all washed off with a watering can. I checked half a dozen plots either side....nothing. Then I realised the affected beds are all adjacent to paths. Getting paranoid now....who have I upset? I doubt that you have upset anyone. It IS puzzling though. Let's see what happens in the next day or two. Eh? Could it be as Sacha said, Bordeaux mixture near your plants? No, def. not Bordeaux. It's only a small site, AFAIK, I'm the only one who uses it.....and no Smith period this year. Hey ho I don't suppose you have been watering with water from your washing machine? specks of blue colourant from washing powder? |
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