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Using citric acid to treat random pests on a plant with leaf septoria. Is this OK? Per usual I've received several severely different answers. Thanks
masterofsmeagolstarted grow question 22d ago
I am treating leaf septoria with plant doctor root drench. It is keeping it suppressed amazingly. Local "pro grower dispensary owner" said not to spray ANYTHING on canna that has leaf septoria as it spreads it. Wouldn't the citric acid eat it? TIA to OUTDOOR EXPERIENCE grower
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00110001001001111Oanswered grow question 22d ago
It's a fungus, so it'll probably just spread it around more than it kills it. Citric acid is not an effective antifungal. Even the commercial grade shit farms buy is only ~33% effective. Fungus is not something we really have any useful tools to fight...
any acid that could kill it effectively will also kill your plant.
"UV" is showing promise -- google/duckduckgo search "winery UV powdery mildew" - different fungus but also mostly ineffective options out there with bold promises that severely under-deliver - milk is useless, 'cornell formula' is useless etc etc.. the holistic stuff is trash in regard to fungal control. neem is useless.
you just end up dripping spores all over your plant so it spreads faster, lol.
don't need to be an outdoor grower to recognize "magic".
cut it out, hope for the best... if it's a large garden i'd remove an entire plant if you catch it early on for the sake of the rest. context matters.
Todzillaanswered grow question 21d ago
Hey, I can’t see your plants up close, but I assume that you have the spots.
It’s a fungus that usually starts from old rotten plant material.
First cut out all of the affected leaves gently so it doesn’t spread. Then clean up the grow area. I find it common in tomatoes so I grow tomatoes separate from my other plants. If a plant gets totally infected bag it and trash it quickly.
Best of luck on your grow.
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Ultravioletanswered grow question 21d ago
It will slow and possibly contain the spread in concentrations above 0.3% but it won't cure or heal the existing damage.
Can be a helpful tool, it's not a complete replacement for fungicides. In severe cases, fungicides like chlorothalonil or mancozeb may be necessary to control the spread of Septoria.
Citric acid can be absorbed into the leaf and for the most part is beneficial up to a point. Citric acid is used during cellular respiration to produce energy but it won't do much to stop the septoria and could potentially cause toxicity if over applied.
UV-B at night is more for powdery mildew, it can help prevent septoria likewise but not as effective. UV-B radiation damages the DNA of fungi, disrupting their ability to germinate, infect plants, and reproduce.l UV-B radiation offers a promising, sustainable, and potentially cost-effective way to control powdery mildew and other fungal diseases, but careful consideration of dosage, wavelength, and application methods is crucial for success.
More hassle than it's worth. Being outside doesn't help.
Fire always works Muahahhaahha *evil laugh*
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m0useanswered grow question 22d ago
it will alter its PH and maybe make it less contagious but eating it. no. no digestive enzymes or nothing like it. If you got it. best thing to do is kill the plant. and don't grow that plant in the same bed of soil again for a few years or its likely to comeback.
leaf septoria is a fungal thing on the leaves so treatment of the root zone seems off to me unless its just a shit ton of silica or thing to stress the plant to make it harder for septoria to establish itself. If so. its not treating it just a preventive. and the problem and it still exists. need to remove all affected leaves and burn them. not compost. peroxide should help kill it but it will need to be done at dawn or dusk to avoid light burn.
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