Botritys on branches - Help!

[Dougs Nugs]

I removed several sections like this and even a large main center stem that had a cut infected...any treatment options welcome. Please help.

 

[MICHI-CAN]

Airflow or massive chemical assault. Sorry.

 

[HydoDan]

They're beautiful, But you need to do a lot of thinning, get some airflow..

 

[sirtalis]

Those are epic, amazing work.

I'd be pretty careful about heavy pruning right now. I've found that botrytis enters plants through pruning wounds.

That's a tough situation because they are way too close together but if you start thinning it will open up even more sites for botytis spore to enter.

I've been doing a lot of research lately and found that there isn't a botrytis cure after it's already inside the plant. Spraying H202 on already moldy branches is important though. You want to kill any visible spores before cutting, and judging by your picture you cut it out while dry, probably releasing all a lot.

Using Regalia and Potassium Silicate has slowed the spread for me though, no new branches are showing mold. Regalia is made of bacteria so it's organic. Potassium Silicate strengthens cell walls and leaves a high pH on the surface so botrytis spores can't penetrate.

Here's what I'd do:

-Use better cleanliness practices when removing moldy branches: spray the infected site with H202 first, killing the spores, then use sterilized scissors to cut. Sterilize again between cuts.
-After removing moldy sites, spray the site with potassium silicate so that the pH is too high for spores to enter
-Foliar Regalia every 2-3 days in the early morning
-Foliar Potassium Silicate every 3 days in the early morning

In all honesty, you're going to lose a portion of the crop no matter what, unless you can move the plants into better spacing. Next year you will need to thin earlier during veg, space them out better, and start much earlier on the mold prevention.

 

[Dougs Nugs]

Thanks for the in depth I sight, lots of what I researxhed / read had similar suggestions with potassium silicate -

So far it's minimal but I know I need to get ahead

 

[Dougs Nugs]

Thanks for the in depth I sight, lots of what I researxhed / read had similar suggestions with potassium silicate -

So far it's minimal but I know I need to get ahead

They're beautiful, But you need to do a lot of thinning, get some airflow..

Creating new wounds isn't ideal as spores will jump to new wound sites unless the plants are extremely healthy...avoiding any new open "wounds"

 

[HydoDan]

Thanks for the in depth I sight, lots of what I researxhed / read had similar suggestions with potassium silicate -

So far it's minimal but I know I need to get ahead

Creating new wounds isn't ideal as spores will jump to new wound sites unless the plants are extremely healthy...avoiding any new open "wounds"

I disagree but they're your plants.. Good luck when it rains..

 

[Dougs Nugs]

This is why I went to bean basement...have fun ladies

 

[thumper60]

I removed several sections like this and even a large main center stem that had a cut infected...any treatment options welcome. Please help.

That looks like a nightmare plants way to close, 3% peroxcide will help spray heavy before touching any mold spots an plucking sucker leafs does not cause a wound get at it thin that shit out.

 

[Herb & Suds]

This is why I went to bean basement...have fun ladies

You got this!

 

[xtsho]

You might only be finding a visible spot here or there but those plants are covered in mold spores. You better get on it before they're completely covered in mold and you lose the entire crop.

Good luck.