Hemp Canker/ S. sclerotioruin

[FatherEarth]

So Ive been having some troubles in my greenhouse with a few plants. I broke out the Hemp Diseases and Pests and got to doing some research. Im pretty sure this is what I have but I figured it couldnt hurt to ask before I purchase preventative measures (Contans WG). Had some troubles with branches breaking, now I have tops of plants wilting and fan leaves yellowing up the main stem only, while the rest of the plant is perfectly green. I got to looking at the sick ones and all of them have something similar to this....

 

[trichrider]

are you flossing regularly?

 

[Sat X RB]

neem may stop and clean up the 'decay' you show ... but what started it? some organism is/was INSIDE yr stem tissue to cause this ...

 

[FatherEarth]

Hemp Canker

Hemp Canker

Taken from "Hemp Pests and Diseases"

 

[FatherEarth]

Hope that answers your question. I think I originally got it from poor pruning practices ie. (not cleaning my pruning shears between cuts and allowing them to get soil on the blades)and also not tying up branches early ie. I had branches that broke off and ripped the outer stem layer, tearing it down to the ground. I didnt notice some of these branches until some had already begun to heal some days later.

 

[FatherEarth]

A microscope helped greatly in positively identifying the actual fungi I was dealing with along with the aforementioned book.