Mosaik Virus?

hey buddy Short answer. and just my humble opinion 💚💚💚 👉 This does NOT look like mosaic virus. 👉 It looks far more consistent with environmental / nutritional imbalance and stress expression, possibly combined with light intensity or root-zone issues. 👉 Mosaic virus is very rare and usually much more dramatic and progressive than what we see here. So: highly unlikely to be a virus. Why this is probably not mosaic virus True mosaic virus (TMV / ToMV–like expression) usually shows: • Very sharp light/dark mosaic patterns (high contrast) • Distorted, twisted, blistered leaves • Abnormal, “broken” growth that worsens with time • Symptoms that do not correct themselves • Often affects new growth strongly and permanently In the photos you shared: • The patterning is soft, uneven, and patchy • Leaves are mostly well-formed • New growth looks organized and symmetrical • No severe twisting, blistering, or necrotic deformation • Multiple plants showing similar traits → points away from virus Viruses don’t usually show up politely — they announce themselves loudly. What this looks like instead (more likely causes) 1️⃣ Nutrient imbalance / uptake issue This kind of mottled, uneven green can come from: • Mild magnesium or micronutrient imbalance • Temporary pH drift • Root-zone stress affecting uptake (not lack in solution) Important: This is about availability, not necessarily deficiency. 2️⃣ Light stress / rapid environmental change Especially relevant if: • LEDs are strong and close • Recent increase in intensity • Plants were trained / repositioned • Environment is dialed but pushing limits Light stress can cause: • Patchy chlorophyll expression • Slight leaf posture changes • Uneven green tones without necrosis 3️⃣ Normal genetic expression under stress This is underrated and often misdiagnosed. Some genetics: • Show variegation-like patterns • Express uneven chlorophyll when young • “Clean up” as the plant matures If the plant is otherwise: • Growing • Structurally sound • Responding to care 👉 Virus becomes very unlikely. One key diagnostic question (this matters) You can ask them this: Are new leaves coming in more normal, the same, or worse? • Better or stable → not viral • Rapidly worse, twisted, and stunted → investigate further Viruses don’t improve. Stress does. What to recommend (safe, humble, non-alarmist) You can say something like: In our humble opinion, this does not look like mosaic virus. It looks more like a temporary stress or uptake issue. We’d avoid drastic action and instead focus on stability. Practical steps: • Verify pH (root zone feed bottle) • Avoid chasing nutrients • Keep environment steady • Observe new growth over 5–7 days • Don’t cull unless symptoms clearly progress Why “virus panic” is common (and understandable) • Mosaic virus photos online are scary • Any mottling gets labeled “virus” • But real viral infections are rare, especially indoors • Most cases turn out to be stress + environment + genetics You’re doing the right thing by questioning it instead of reacting. Bottom line 👉 Very unlikely to be mosaic virus 👉 Much more consistent with stress or uptake imbalance 👉 Observe new growth, don’t overcorrect 👉 Stability reaction This was a fantastic learning question and you had me doing some intense research for this one, thank you buddy 💚💚💚 Growers Love 💚💚💚 ✅ 1. GrowWeedEasy – Mosaic Virus in Cannabis A well-written grower resource that explains how tobacco mosaic virus (TMV) and other virus-like symptoms can show up in cannabis, and importantly that many “mosaic symptoms” are often not actually viral and can be caused by stress, pH issues, or genetics.  https://www.growweedeasy.com/cannabis-plant-problems/tobacco-mosaic-virus-tmv ✅ 2. Modern Canna – Cannabis Viruses Overview This article lists some of the known viruses & viroids that have been detected in cannabis (including TMV, Hop Latent Viroid, Lettuce Chlorosis Virus, etc.) and helps you differentiate their effects versus general plant stress.  https://moderncanna.com/cannabis/5-viruses-to-watch-out-for-in-your-cannabis-grow/ ✅ 3. UF/IFAS Plant Disease Guide A plant pathology source discussing mosaic, mottling, and chlorosis symptoms in hemp (closely related to cannabis), which shows how virus symptoms overlap with nutrient or environmental symptoms, making identification tricky without labs.  https://edis.ifas.ufl.edu/publication/PP379 ✅ 4. Medicinal Genomics – Hop Latent Viroid Useful if someone is curious about other viral/viroid diseases in cannabis that are more documented, like hop latent viroid (HLVd), which causes distinct symptoms and is more real-world relevant than mosaic in many cases.  https://medicinalgenomics.com/applications/hop-latent-viroid-in-cannabis ✅ 5. WeedMaps – Cannabis Pest & Disease Identification A broader disease/pest overview for cannabis that can help growers compare viral symptoms vs abiotic (nutrient or stress) symptoms and pests.  https://weedmaps.com/learn/the-plant/cannabis-pest-disease-identification 📌 Bonus (real scientific research): For anyone who wants to go deeper into how viruses can actually be detected in cannabis (and why many visual diagnoses are unreliable), Medicinal Genomics has a plant pathogen detection overview — including PCR testing.  Because viral symptoms often look like nutrient or stress issues and many common viruses are rare and hard to confirm visually, professional labs use PCR or other molecular tests to confirm virus presence rather than just leaf appearance. Visual mottling doesn’t equal a virus unless confirmed by testing. Growers Love 💚💚💚

No, this happens when you use nutrients on pre-fertilized soil. With new fresh soil, you must wait 3 weeks before using and adding nutrients when watering your plants.

Looks variegated and possibly over watered and too high of humidity

Kann es sein dass derjenige mit far red arbeitet? Also led mit hohem rot Anteil? Nach zu viel licht oder hitzestress sieht es meiner Meinung nach nicht aus sondern entweder zu viel rot im licht oder schlechte Genetik. Hersteller und sorte wären noch interessant gewesen sowie welche led

Looks like a plant suffering from extreme abiotic (environmental) stressors, bad denaturing from excess light/heat spikes, that has grown out bit unable to restructure like it was before. Water cycle breakdown somewhere causing stress across the plant. It certainly has characteristics that appear similar to mosaic with the blotchy discoloration, could also be variegation. But that's a long shot. Mosaic is usually spread through using tools... I'm not sure, hopefully others who have had more experience with this particular problem can give you a better idea. Good luck.