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Yellow spotted leaves?

Are yellow leaves with brown spots something to be alarmed about?  If so, what should I do?

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Replies (11)
    • have you checked it for possible spider mites i had them once and the spots on the green leaves looked like that.

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      • hard to tell from pic...but yea do a close inspection for critters...shouldn't be too hard to see...something is def. going on...

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        • I see a lot of white specks on the fan leaves and that is usually a sign of spider mites and it also looks like a K deficiency. https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency

          Are you feeding it any kind of bud booster? 

          I fought spider mites for a year and the only thing that works is NPK's Mighty, it kills the spider mites and their larva, nothing else on the market does that and you can spray a week or two before harvest and there is no health risk or bad taste.

          1500 or 3000 lady bugs got their asses kicked by spider mites in my grow room, they ended up huddling on a light and dying a slow ugly death from shame.   

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          • you didnt release them with the lights on did you?

             

            oh-~nevermind!

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            • I dont remember actually, I bought 3 rounds of them so I think I swept up 4500 of them total. I think they would work if you caught the little bastards early enough, but I think the lady bugs were outnumbered 4 to one when I starting turning them loose. 

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            • Get all the dead or dying foliage out with your pruners.  This will promote airflow and help prevent bud rot .Calcium and magnesium will help some.

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              • It could also be leaf septoria, but you're so close to harvest there's nothing you can do but pull off the affected leaves. Usually septoria onset is in July, when it starts to get hot. Septoria is very common with cannabis . Peace

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                • I grow outside every year an chubby is right, you do got some mold man i'd listen to his advise on what to do.

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                  • Thanks, everyone!  After further inspection, I found worms.  The worms I could see were removed and the yellow leaves and brown areas removed.

                    I sprayed the plants with BT.  Should they be sprayed again in a week?

                    It has been humid all summer.  Would you spray them with a potassium bicarbonate mixture to kill the bud rot? 

                    I hate the idea of losing everything and want to do the right thing to get something useable for my time and efforts.

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                    • You may just have to harvest its to big a plant to keep up with the bud worms if you saw 1 there are more that maybe did not even hatch yet   Deep in the buds there going to eat your plant from from the inside out the rot you see is from them eating 
                      With my amnesia haze every day I was checking her inside out finding little white eggs some rot I would pick it out and finally I found the little worm 🐛 now I know what the problem was 

                      save what you can!!! 

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                      • My friend as many already commented, chop that lady down and salvage as much as you can, that lady is far from the point of being saved…but i am sure you will still have some very enjoyable smoke!

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