Seeing this stuff is quite disappointing. I noticed it about a week ago on my outdoor plants. First thing I did was remove a bunch of lower branches and infected leaves then wipe down each leaf with a cloth soaked in peroxide then spray the plant with a 1:4 peroxide to water solution.
The PM started appearing a few days later but not as bad.
This time I tried spraying some compost tea, thinking the bacteria would stop the mildew, it helped a bit but it keeps coming back. since then I'm simply pulling infected leaves off and disposing of them far away.
What can I do next? I'm not sure if I should just keep pulling leaves off or spray something stronger. The buds are forming nicely and I would love not to have to spray any chems on there.
From reading about PM, seems like I could spray with peroxide or baking soda solution.
Any help on the subject would be appreciated.
pic
Today I have removed a whole bunch of lower branches and as many infected leaves as I could spot as well as a lot of large overlapping fan leaves. I have sprayed a peroxide solution again.
Would it be a good idea to get some Potassium bicarbonate to spray with?
I definitely need to figure out how it happened in the first place.
Everything was going fine in veg.
This is an outdoor grow done in a diy green house.
1.) I did not prune enough
2.) lack of airflow due to not pruning
3.) something else I noticed today. See Pic
I noticed a tree that is about 10 ft away from the plants is covered in the mildew stuff. could the spores have come from that tree?
Here are some pictures of the greenhouse and plants. The left side wall is not normally on, we had a storm with high winds last night.
pic 1 ( normally like this with the window on the bottom screwed in place.)
pic 2 and pic 3 ( trimmed a bunch of lower branches today.)
The PM started appearing a few days later but not as bad.
This time I tried spraying some compost tea, thinking the bacteria would stop the mildew, it helped a bit but it keeps coming back. since then I'm simply pulling infected leaves off and disposing of them far away.
What can I do next? I'm not sure if I should just keep pulling leaves off or spray something stronger. The buds are forming nicely and I would love not to have to spray any chems on there.
From reading about PM, seems like I could spray with peroxide or baking soda solution.
Any help on the subject would be appreciated.
pic
Today I have removed a whole bunch of lower branches and as many infected leaves as I could spot as well as a lot of large overlapping fan leaves. I have sprayed a peroxide solution again.
Would it be a good idea to get some Potassium bicarbonate to spray with?
I definitely need to figure out how it happened in the first place.
Everything was going fine in veg.
This is an outdoor grow done in a diy green house.
1.) I did not prune enough
2.) lack of airflow due to not pruning
3.) something else I noticed today. See Pic
I noticed a tree that is about 10 ft away from the plants is covered in the mildew stuff. could the spores have come from that tree?
Here are some pictures of the greenhouse and plants. The left side wall is not normally on, we had a storm with high winds last night.
pic 1 ( normally like this with the window on the bottom screwed in place.)
pic 2 and pic 3 ( trimmed a bunch of lower branches today.)