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#1
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Concord not up yet
It is June and both my Concord grape stands ( 2 plants one, four
plants another, separated by 300 ft) have not leafed out yet. They have few shoots and a few leaves that are brown, have many holes, and have shrivelled. Now due to a series of circumstances I ended up pruning them in early march, so they bled, and a hard frost in late april killed whatever was coming up. But the kiwis got the same treatment, bled much more, and are as rampant as ever. I inspected the woods and saw less grapevines and some with similar symptoms. It has to be a disease. Any idea? They have always been strong, healthy plants. |
#2
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Concord not up yet
That sounds troubling. Something certainly is wrong! The bleeding
shouldn't be a factor. They say it causes no harm and I have no reason to believe other wise. I always prune mine in the fall though, because I don't like to see all that sap flowing out. You mention holes. Do you have grape flea beetles there? This is the first year I can remember NOT seeing them. Maybe they all went to your house. I've seen them so bad that they caused some new growth to turn brown and die. Never the whole vine but I suppose it could happen. I don't know of a fungus or other disease that can cause that kind of trouble, but I'm no expert on grape diseases either. I believe I could put you in touch with someone who is an expert if you need it. Damage to the trunk could kill the vine that way but what are the chances of ALL your vines being damaged all at once? About zero, that's what. Your vines may save themselves by pushing out growth later. If they manage to do that, you will get no grapes this year. Steve simy1 wrote: It is June and both my Concord grape stands ( 2 plants one, four plants another, separated by 300 ft) have not leafed out yet. They have few shoots and a few leaves that are brown, have many holes, and have shrivelled. Now due to a series of circumstances I ended up pruning them in early march, so they bled, and a hard frost in late april killed whatever was coming up. But the kiwis got the same treatment, bled much more, and are as rampant as ever. I inspected the woods and saw less grapevines and some with similar symptoms. It has to be a disease. Any idea? They have always been strong, healthy plants. |
#3
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Concord not up yet
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#4
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Concord not up yet
Janice wrote in message . ..
Don't know where you are.. because I have NO memory.. sorry about that. My grapes are growing madly, but I have noticed that the first leaves on my canadice out front were all speckled brown, but the leaves that have grown since look ok so far anyway. Thanks to both of you. I usually prune in November, with no bleeding whatsoever (and that's the proper way. Apples need february pruning). I live 45 miles W of Detroit MI. And yes, the holes could be miners. Grapes usually leaf out in early May around here. I will wait a bit more... |
#5
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Concord not up yet
Janice wrote: ...................................I have noticed that the first leaves on my canadice out front were all speckled brown, but the leaves that have grown since look ok............................ Janice, how so you like that canadice grape? I had one for several years and was never thrilled with it. They tend to make clusters that are so tight that the interior can almost crush itself. The vine turned out to be prone to getting ugly cankers on the trunk. I was never impressed with the taste either so I took it out and planted something else. I live in an area that is pretty cool all summer and with a short growing season. I wonder if they do better elsewhere? I think my favorite grape right now is Reliance. It's a nice red seedless grape with a nice flavor. Vanessa is very similar with a slightly different taste. Steve in the Adirondacks of northern NY |
#6
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Concord not up yet
simy1 wrote:
Janice wrote in message . .. Don't know where you are.. because I have NO memory.. sorry about that. My grapes are growing madly, but I have noticed that the first leaves on my canadice out front were all speckled brown, but the leaves that have grown since look ok so far anyway. Thanks to both of you. I usually prune in November, with no bleeding whatsoever (and that's the proper way. Apples need february pruning). I live 45 miles W of Detroit MI. And yes, the holes could be miners. Grapes usually leaf out in early May around here. I will wait a bit more... I live in Detroit. My canadice is leafed out ... has been for weeks. Sorry. |
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