Do grape vines carry pathogens harmful to marijuana?

My outdoor grow is camouflaged with growing wild grape vines and every year I get a blight looking disease that attacks usually lower buds and results in stunted purple buds with coarse hairs that feel harder to the touch Grape vines are in close proximity and I do see a sort of powdery mildew or maybe downy mildew on newer growth of the vines which I trim and dispose of but not the dark purple stunted growth I get on my pot. I've read of a hop blight which is also a vine with bud flowers which can affect marijuana, any ideas?

Grape black rot is a beast of a fungus, not sure if it can spread to cannabis but on grapes it shows as a bumch of rust spots on leaves and of course rotting Grapes.

Some grape vines are very susceptible to powdery mildew, downy mildew, gray mold, etc...

A potassium silicate/sesame oil foliar spray in early spring followed by weekly spraying all around the area on all plants will have a significant positive effect preventing many plant diseases.

Don't spray any oil based sprays on cannabis plants during flower.

Yeah the "course" description, some thought it was just a purple strain by pics but they are dark purple, stunted buds but it doesn't seem to rise much up the plant

xtsho said:

Some grape vines are very susceptible to powdery mildew, downy mildew, gray mold, etc...

A potassium silicate/sesame oil foliar spray in early spring followed by weekly spraying all around the area on all plants will have a significant positive effect preventing many plant diseases.

Don't spray any oil based sprays on cannabis plants during flower.

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Thanks, I read diatomaceous earth is a good source of silica easily utilized by the plant, also I bought 1/2 gal. of pure crop1 foliar spray as a final weapon against my indoor PM.

Zinger59 said:

Thanks, I read diatomaceous earth is a good source of silica easily utilized by the plant, also I bought 1/2 gal. of pure crop1 foliar spray as a final weapon against my indoor PM.

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Purecrop is oil based and does work. It has citric acid to lower the pH while using something alkaline like potassium silicate raises the pH. Both work by either raising or lowering the pH to a level that creates an environment where the pathogen can't survive.

Root aphids would be my biggest concern. I'm not sure cannabis is susceptible to the same pathogens that attack grapes though.

I have never experienced root aphids nor want to by what I hear on here.

Without a pic its a guessing game.

Botrytis is one of the primary grape pathogens resulting in loss of yield.

Since wild grapes have taken over my fences I have PM to the point I won’t even try growing anything in the garden other than root vegetables and tomatoes

Just curious do you use the wild grapes for anything. Kinda wondering why you don’t chop and claim your stuff back

Herb & Suds said:

Since wild grapes have taken over my fences I have PM to the point I won’t even try growing anything in the garden other than root vegetables and tomatoes

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Has it ever jumped to your canna garden?

Zinger59 said:

I have never experienced root aphids nor want to by what I hear on here.

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There was a grower on here years ago that was infested with RAs. He had to rid his yard of all the wild grapes to finally beat them.

Do you have a pic of the stunted purple buds you're talking about? Or something close from Google?

Tangerine_ said:

Has it ever jumped to your canna garden?

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Not growing outdoors to risk it anymore
Acreage makes it hard to treat
Even a green house is a battle but it’s my own fault for letting the grapes grow

bam0813 said:

Just curious do you use the wild grapes for anything. Kinda wondering why you don’t chop and claim your stuff back

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We were making wine for a few years

Herb & Suds said:

Not growing outdoors to risk it anymore
Acreage makes it hard to treat
Even a green house is a battle but it’s my own fault for letting the grapes grow

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And they spread so damn fast. We've made wine out them too but I cant say I'm a fan.

Herb & Suds said:

Not growing outdoors to risk it anymore
Acreage makes it hard to treat
Even a green house is a battle but it’s my own fault for letting the grapes grow

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About the only things I’ve dealt with harder to get rid of than wild grapes are poison ivy and wild mint. Had Concord grapes at our old house that were a beetle magnet. Those little bastards start out as grubs and did great damage to the lawn before getting them under control.

Tangerine_ said:

And they spread so damn fast. We've made wine out them too but I cant say I'm a fan.

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My current “fermenter “ is made of copper
Whole different flavor profiles

C. Nesbitt said:

About the only things I’ve dealt with harder to get rid of than wild grapes are poison ivy and wild mint. Had Concord grapes at our old house that were a beetle magnet. Those little bastards start out as grubs and did great damage to the lawn before getting them under control.

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I fight poison ivy hand to hand usually on my knees under Lilac bushes
Grrrr
And of course I have a couple neighbors that bought maple species that attract box elders