Black Spots on Leaves & Stem

CFLbc

Well-Known Member
Hey,

Recently got some decent rain, like 30mm, and the plants are starting to show some black spots on the leaves and steams. I think this is black mold and was curious if you guys have a solution for it?

Edit: plants are outdoors
 

thumper60

Well-Known Member
Hey,

Recently got some decent rain, like 30mm, and the plants are starting to show some black spots on the leaves and steams. I think this is black mold and was curious if you guys have a solution for it?

Edit: plants are outdoors
copper has helped me in the past
 

CFLbc

Well-Known Member
copper has helped me in the past
im not too sure who that is, but i just phoned a local garden store and they said it sounds like blight, so i think I'm just gonna chop away at the parts that are infected and keep the rest that looks alright.
 

CFLbc

Well-Known Member
could be a potassium def or black spot disease as well
ye im not too worried for a potassium def cause they look ready to harvest soon and it would bring out color in the plant. i think im gonna try baking soda and water foilar spray first to see if it can help with the black spots.

it seems to be the spots are only affecting one plant.
 

CFLbc

Well-Known Member
update:

cut around 1/2 lb off the plant that was exhibiting the septoria disease about 2 days ago.
the rest of the plant is doing fine.
also molasses + water was fed to them and they seem to have taken fondly to the feeding.
the buds are starting to turn purple
the rest of the plant, that was infected with septoria, should produce another 1lb or so
any remaining leaves with septoria were pruned and this action has artificially sped up flowering, by tricking the plant that Fall is coming sooner than its internal response expected

the baking soda + water foilar spray appears to have worked, in combination with the warmer sunny days after the 30mm rainfall

edit:

miscellaneous spots of powdery mildew were also spotted, and i am contemplating a foilar spray of milk + water to mitigate any further potential festering. the powdery mildew probably was isolated to <0.005% of the overall surface area of the plants leaves.

furthermore, there was 2 isolated cases of bud rot where it was immediately removed from the plant. these 2 isolated locations account for approximately 3g of bud or about 0.002% of the plant (based on an estimated 1.5lb harvest off of the infested plant)

current actions are to closely monitor the potential for powdery mildew and to continuously scan the nodes for bud rot.
 
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