White dots

sciurcavaliere
sciurcavalierestarted grow question 6y ago
I have added a not too strong light, to speed up the growth. Also white dot's have started to appear? Could it be related to and excess of nutrients? (Oxblood)
Open
Week 4
Leaves. White powder
Setup. Lighting
Feeding. Deficiencies
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CRiSPrGrow
CRiSPrGrowanswered grow question 6y ago
hey there, sorry to say but you have spider mites my friend , you can see this from the sharp bite marks on the leafs. if you turn the leafs upsidedown you can see microscopic black dots. These are very small and very dangerous for the grow, they can really kill a plant and they are very difficult to remove. I prefer to use bacilus thuriengiensis to control the infestation because it's natural and not really that dangerous to humans. The only other way i tried that actually works is by using one of those "gas grenade" style pesticides. Just make sure you get the one that is safe to use for humans. Some of them it's okay to use even 2 weeks before harvest. Just explain to the shop keeper than you have some spider mites on your herb garden and you want to eat some thing when it's ready, they should help you find the right thing. Hope this helps ! 🚀
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labifle
labifleanswered grow question 6y ago
Hey gardener! I think you have insects like red spiders under your leaves, so check underneath, and if you see any bugs, you still have time to treat it without it being too difficult since you're not in flower. So normally you spray a solution of 90% water and 10% soap, or the same thing but with neem oil, and definitely don’t use chemical pesticides; I did that once with my roommate and we were coughing with every puff. Good luck to you, bella ciao!
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MadeInGermany
MadeInGermanyanswered grow question 6y ago
Can you use your microscope to examine your spots for scuff marks? But I don't hope so. :-)
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ijustdontgiveaf
ijustdontgiveafanswered grow question 6y ago
can you make a picture of it in regular light? this burple light makes the color of the leaves and spots difficult to see, so it's tricky to give a good evaluation whether it could be a deficiency or an excess of nutrients..
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Promi
Promianswered grow question 6y ago
I had white dots on some outdoor Wonder Woman this season. Problem is, I changed two things ^^ so can't tell which one sorted the issue. I sprayed my plants with borehole water. The fine sediment left a brighter spot, leaf below died. I changed to filtered water. You don't spray.. good on this one, otherwise, check your water. Second guess was Calcium. I added some CalMag to the feeding and reduced my N to compensate for the N inside CalMag. After those two changes my leaves grew perfect green again. The spots will never disappear.. so you are good when the new leaves are solid green again.
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