Shargo, a Burley - Oriental hybrid, mold rescue: Stringer No. 1
I am fortunate that I caught this infestation early. All mold was limited to the stems with minor lamina infection. All leaves were treated with a 75% solution of Hydrogen Peroxide. I also wipes down the metal stringer with 70% Isopropyl Alcohol.
Before we proceed with details of the operation, remember, YOU DID NOTHING WRONG to cause any contamination of your tobacco. Mold naturally occurs in nature. Just like wine making yeasts grow wild on grapes and the yeast & bacteria that make sourdough are ever present in our homes, the mold spore are already in/on your tobacco. Your only error - bad storage with too much moisture.
Now, on with the details...
My Shargo was in various stages of coloring and drying. Some stems were still yellow, some were drying nicely, and some were at the moist, mushy brown stage before drying out.
Nearly all of the leaves had the base of their stems dried out. This causes stem drying to slow down as the moisture can't wick up the stem for evaporation. The leaves are in a state of dehydration not unlike a large chunk of pork shoulder in a smoker - the eternity it takes for you roast to go from 165°F to 200°F.
Only 19 out of 58 leaves were actively showing fruiting bodies of mold - the fuzzy part we can observe. A 33% infection rate.
I topped up my half full, normal 50% Peroxide solution with fresh 2% Peroxide; yeilding ~75% solution. I sprayed the tops first and let the peroxide do its thing. While I waited, I restrung the 39 good leaves with 1/2 in space between each leaf.
Where there is fizz, ther is mold. I then wiped down the stems & affected lamina with a paper towel moistened with the peroxide solution. Note: the above leaf is NOT green, my red heat lamp altered the color balance.
To help the treated leaves come back down to low case, I left them layed out on the screen. I did not have time to wipe down the underside of the leaves, but I did spray them. I'll wipe them down when I can get back to it.
As an observation, there is a "safe" & undafe midrib state. A vibrant yellow stem (and lamina) is less likely to mold. After browning, stems and lamina are most at risk of molding in the presence of moisture. Remember: low case will not mold, medium case could mold under the right conditions, and high case or above will mold; so stay vigilant as you dry down your leaves.
Healthy yellow midrib
At risk, brown, mushy stem - browned, but not dried
A sample of NOT mold. These are the tiny hairs on you tobacco leaves
