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Upwards curled leafs with brown spots

HighZenBerg
HighZenBergstarted grow question 4 years ago
The leafs on one plant curl upwards with brown spots. all leafs more or less show these signs. Does anyone know, what it can be? Also the developement of the flowers is slower in comparison with the other 2 plants
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Leaves. Curl up
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horsemouth
horsemouthanswered grow question 4 years ago
hi, your plant has at least 2 problems: too much ligh and calcium def. cheers
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smoke24
smoke24answered grow question 4 years ago
Move your light to 22 inches above the canopy, you have a good case of light stress. Happy growing.
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Fruitgrower
Fruitgroweranswered grow question 4 years ago
This particular plant might be in a hot-spot in your tent. If the lights are powerful and the airflow isn't adequate, there will be points in your grow area that retain heat. This could be the issue.
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MomoCookie
MomoCookieanswered grow question 4 years ago
To much light!! Try 15-20% less light if your light is Dimmable otherwise put your light 10-20 cm higher
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Mikewithgreenthumbs420
Mikewithgreenthumbs420answered grow question 4 years ago
https://www.growweedeasy.com/cannabis-plant-problems/heat-light-stress go to this site has all plant problems hope this helps
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