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I noticed this silvery spots on the fan leaves mai...

Tentsneggs
Tentsneggsstarted grow question 6 years ago
I noticed this silvery spots on the fan leaves mainly of one plant. I am growing in coco and alternating nutrient solution and Ph’d water. The most recent picture is from a recently removed fan leaf.
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Week 3
Techniques. Defoliation
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Athos
Athosanswered grow question 6 years ago
Look at the leaf real close, from what I can see, more than silver patches, up close they look like it's missing the top layer in several places and they have curled edges. They look like nutrient burn. How much EC/PPM are you feeding?
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Selected By The Grower
FlavoursUk
FlavoursUkanswered grow question 6 years ago
Hi, Thrips are small, fast-moving insects and can come in many forms, from pale wormy looking things to dark winged insects, depending on the stage of life and where you live. They pierce cannabis leaves with their mouths and suck out all the good stuff, leaving shiny (sometimes people thing it looks slimy), silver or bronze spots wherever the leaves were bitten. The spots are bigger and more irregularly shaped than the bites left from spider mites. If it goes on too long the affected leaves may start dying. solution: Fatty acid salts or insecticidal soaps can be a good choice against thrips. They weaken the outer shell of thrips but are safe to use on your plants and they don’t leave much of a residue. OR Neem oil. Pay close attention for pests in your garden. Hope this helps.
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