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White spots

BrediniGreeny
BrediniGreenystarted grow question 9mo ago
Hey Growmies, i got some unusual white spots on the leaves. Young leaves, old leaves doesn't matter. Also on not so many leaves. I checked with the digital microscope also because i thought thrips but can't find any. Any ideeas? 💚🍀🙂💪
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Leaves. Other
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yan420
yan420answered grow question 9mo ago
Hey growmie, sieht für mich nach frühen Thrips-Spuren aus. Diese weißen Flecken und Schabstellen machen die mofos echt gern, saugen sich schön den saft raus. Manchmal erwischt man sie halt nicht direkt, die sind klein, schnell und oft nur abends richtig aktiv. Schau mal speziell unter den Blättern kurz vor Licht aus, wenn da nix krabbelt, Gelbtafeln rein, dann weißt du es schnell. Falls es Thrips sind: Neem Öl drauf oder Spinosad, das regelt das Problem eigentlich ganz gut. Erde oben ruhig mit checken, die legen da auch gern Eier ab. Kann theoretisch auch was anderes sein, aber vom Schadbild her schreit nach Thrips. Drück dir die Daumen growmie 🤞🍀♥️
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Pyramid_Seeds
Pyramid_Seedsanswered grow question 9mo ago
You’re totally on the right track, those white spots do look like thrip damage, even if you didn’t catch them under the microscope. They’re sneaky little guys, and the white marks are usually their feeding scars: tiny punctures where they’ve sucked out the cell contents. Try checking the undersides of the leaves, especially during lights-off or early morning, that’s when they’re most active. For treatment, you can: • Use neem oil or an insecticidal soap (apply during lights off to avoid burning) • Try a product like Spinosad or Beneficial insects (like predatory mites) if you’re into organic methods • Keep humidity and airflow under control, and remove affected leaves if it’s not widespread Hope you get them under control fast :)
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Seashell
Seashellanswered grow question 9mo ago
bruh what a gathering of plant doctors here one dude guessing light burn like its 2003 one dude screaming leaf miners like its pokemon my man tru-tra-wikipedia writing a novel while the thrips doing the cha-cha on the leaf rn and yan402 giving grandma organic recipes in german like its a cooking forum respect tho its early thrips damage 100% silvering spots sucks juice out the leaves check undersides with light off yellow sticky traps neem or spinosad spray cry later also clean your grow tools once in a lifetime maybe idk stay safe kings but fr sometimes less typing more looking at plants works wonders brotherman good luck
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Ninjabuds
Ninjabudsanswered grow question 9mo ago
Looks like light damage or lack of nut
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TruTraTri
TruTraTrianswered grow question 9mo ago
Doesn't look like powdery or downy mildew. There’s no fuzzy coating, no grey or violet underside, and no oily lesions—so fungal causes are very unlikely here. Someone mentioned leaf miner larvae or fly damage, but these don’t resemble typical miner trails. Leaf miners usually leave winding tunnels within the leaf tissue. Your spots are isolated, surface-level, and not patterned like insect paths. Early thrips damage usually shows as silvery streaks, scraped patches, or tiny black specks (feces), especially on newer leaves—but your photos don’t match that either. Try a simple test: gently wipe a spot with a damp Q-tip. — If it comes off or smears: it's likely residue (spray, minerals, etc.). — If it stays and the leaf surface feels intact: then it’s likely superficial damage or environmental stress, not pests or mildew. Bottom line: no clear signs of pests or disease. Keep airflow good, avoid spraying under lights, and just monitor for changes. Looks stable for now.
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RealGrowDiary
RealGrowDiaryanswered grow question 9mo ago
They are leaf miners, they work inside that leaf they eat everything and comes out when the grow up , get predatory mites or neemoil and u get rif of it :)
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