I have one plant that's pretty bad and another starting to head that direction. I looked at the quick and dirty post but didn't really see my problem please help. Plants are 2 or 3 weeks into flower. They are in soil and they are outside. Soil is a simple mix of pearlite, worm castings potting soil, peat moss. I feed them ones a week with 3/4 strength nutrients. In 3 gallon smart pots. I am currently growing lots of autos right now in same setup with no issues, There is obviously some sort of deficiency going on Thanks for the help
sick autoflower plant... professional advise please
- Thread starter bhg
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I'm not 100% sure. It may be a calcium magnesium deficiency. I have been using General Hydroponics Calimagic on mine as a preventive since I'm growing under LED. Amazon carries it.
Also I would cut back to half strength nuts for a couple of weeks, it could be too much nitrogen. Usually you see the tips of the leaves turn down. If you look at them from the side, are the tips of the leaves turning down? It doesn't really look that way in the photos.
Also I would cut back to half strength nuts for a couple of weeks, it could be too much nitrogen. Usually you see the tips of the leaves turn down. If you look at them from the side, are the tips of the leaves turning down? It doesn't really look that way in the photos.
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BHG- ...got your PM bro',... This is a weird combo of symptoms! That curling/wrinkling of upper (newer) leaves tells me this is not solely a defc. issue; the necrotic patches might me Ca defc., but it's a secondary symptom, and the curl/wrinkle thing is not part of Ca defc. symptoms... most likely, you have some sort of trouble at the roots..this screws with water and nutrient transport, which causes deformations in tissues as they try to grow and expand,... here's a pic from another site:
....overwatering/poor drainage is a common cause, but pests and other physical damage on the roots could be as well,... Do you have pH readings? always wise to look at that...... Now another possibility, more remote, has recently been shown to me by a Master OD grower: a scourge called Russet mites; they are super tiny, look kinda like a maggot, and will cover leaf portions so densely that they take on the russet color...again, this is rare, but since you're OD's,... best check it out with a strong magnifier, 10x should work well enough,... from the look of the discolored areas, I really don't think that's the case here, but better to be sure,... As for the root damage, nothing to be done but let her steer out of the skid by growing new roots... you can help by foliar feeding, and using B1 or better yet, Superthrive,....
....overwatering/poor drainage is a common cause, but pests and other physical damage on the roots could be as well,... Do you have pH readings? always wise to look at that...... Now another possibility, more remote, has recently been shown to me by a Master OD grower: a scourge called Russet mites; they are super tiny, look kinda like a maggot, and will cover leaf portions so densely that they take on the russet color...again, this is rare, but since you're OD's,... best check it out with a strong magnifier, 10x should work well enough,... from the look of the discolored areas, I really don't think that's the case here, but better to be sure,... As for the root damage, nothing to be done but let her steer out of the skid by growing new roots... you can help by foliar feeding, and using B1 or better yet, Superthrive,....
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