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Grow QuestionsBrown spots on leaf, Fungas Gnats?

Brown spots on leaf, Fungas Gnats?

Ice_Rstarted grow question 4 years ago

Could these brow spots be from Fungus Gnat or maybe a nutrient deficiency? Only 2 out of the 4 plants affected in the last couple of days (about 7 leaves). And what to do about it?

Ice_R

Ice_R

Ice_R

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Leaves. Other

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Ice_Ranswered grow question 4 years ago

I didnt´mean the fungus gnats eati9ng the leaves, but i understood the larves in the soil also eat the roots and this can create this symptom (at least thats what ive read)

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Ice_Ranswered grow question 4 years ago

Anybody any idea?

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Chucky324answered grow question 4 years ago

Hello. That is not normal fungus gnat damage. They bite the leaf starting along the edge of the leaf at the vein and working towards the center along the vein. To me it looks like a potassium deficiency Good Luck. Chuck.

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