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Spots on yellowing leaves
yinandyangstarted grow question 4 years ago
Brown spots on dying yellow leaves. This has happened on most of my plants after budding so thinking it may be a soil problem. My guess is boron, manganese or phosphorus as the stems on some plants are red.
It starts low and eventually ends affecting buds too so I chop.
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Nicblackkanswered grow question 4 years ago
Las manchas de color marrón en las hojas durante la floración pueden ser falta de Magnesio o de Calcio. Para saber diferenciarlo bien hay que fijarse en la mancha; si las manchas son marrones y están rodeadas por un borde de color marrón fuerte se trata de Calcio (da apariencia de quemado), si las manchas simplemente son marrones y se visualizan manchas amarillentas entre las venas, se trata de Magnesio.
Aunque el color de las hojas es más amarillo del normal (parece una falta de riego), haciendo zoom se puede observar que la zona de los nervios sí adquiere una tonalidad más amarillenta.
Por tanto, parece falta de Magnesio.
Aún así trata de darles un aporte mayor de agua a ver si mejora el color de las hojas superiores.
Espero que te sirva de ayuda :)
The8thChevronanswered grow question 4 years ago
If the stems are only red on the parts closest to the light, but still green on the underside, then it's only a sunburn and not a problem. If the stems are red all the way around, it likely a P issue.
I really doubt boron or manganese. Its possible but these are pretty rare in soil. Calmag would be more likely if it's not a P issue.
Where it gets complicated is you may be giving them calmag but an over abundance of P and K is keeping them from using it.
Always start at basics and make sure your pH and EC are good in the runoff before doing anything else.
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Burmeseanswered grow question 4 years ago
Hi friend,In my opinion, According to your bud sizes and looks, I don’t think you will have serious problems on your final yield.It’s ok to show deficiencies at this stage.But you will have to focus on your temp, humidity and water pH until harvest.Happy growing.. ✌️
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