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Old 04-06-2013, 02:58 PM posted to uk.rec.gardening
Baz[_3_] Baz[_3_] is offline
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First recorded activity by GardenBanter: Oct 2010
Posts: 1,775
Default 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