This problem crept up today pretty much out of no where. I have rust spots on my leaves heavy enough that i clipped a branch today because i didnt think she was going to make it. I also wanted some close up pics. here's the info... 400W HPS and a 200W CFL running my flower room in soil, MG organic (not time release) 20% perlite nutes - i have only nuted twice with 1/2 strength bloom nutes (15-30-15), nutes were given 2 waterings in a row, the last time was roughly 1.5 weeks ago. I only need to water once a week, so the last watering was a few days ago and i only gave them ph'd water. I have some yellowing leaves so today i gave them some organic veg nutes (9-4-4) at half strength to try and stop the yellowing. ph is fine 6.5 all the way around ill include some excerpts from my journal what do you guys think?
Wow! It looks as though I am in the early stages of what you have with your plants. Mine look the same... just not quite as bad... and they just started to show. I have done some research and think that it may be due to pH lockout, Boron Def,, or Manganese Def. It is very hard to distinguish. Anyone have an answer to this? Please help out... two People with the same prob needing some serious guidance! Thanks, -Pen
Have you checked the run off for ph and ppm? Do you know what the ppm of your nutrient solution is going in?
ph is fine. 6.5 all the way around. I do not know my ppm. I have ferted twice before i noticed this issue. both times with less than 1/2 strength. I'm leaning towards a def since i've been so afraid of burning them and barely nuted to this point.
I'd check my run off, both ph and ppm. Purple leafs generally are an indication of cold temps, but more than likely a nute deficiency. What brand of nutes are you using?
runoff PH is 6.5, I have no way of checking PPM i've been running MG bloom booster that runs 15-30-15. I saw yellowing leaves on a few plants and nuted yesterday with Alaska organic 9-4-4. I've only ever fed at half strength.
Seems as tho you have the ph under control - good job there I do have some concern with Alaska Organic, because IMHO it is not what I would consider an organic nute to be. Organic to me, means something that will not hurt me, because I'm the one who is gonna smoke the stuff. Seeing that I'm not familiar with the product I did a bit of checking and this is what I came up with. With a list of stuff like Arsenic, Cadmium Colbalt, Mercury... it makes my skin creep. I would suggest something less harmful to the body that these chemicals / carcinogens. See attached. Finally, I think the problem is with your nutes.
whoa, wtf? it doesnt say anything about that on the label. good looking out and rep for that. Ill also need to check that that is not common for organic nutes, but i dont like the sound of it either. i read the ingredients in the alaska and everything is organic. bloodmeal, worm castings and what not. to answer your nute statement. these issues started before i applied the alaska nutes. I just did them for the first time yesterday and my issues have stalled. which makes me believe even stronger that this was a deficiency. i wanted to wait for the pots to dry out but i think im going to give em full strength MG bloom tommorow (15-30-15). If i overwater it will be fine, i just need to cut the issues off right now.
I'd hit 'em with the Alaksa stuff, at least you know what's in there versus the MG which is playing with fire. Don't worry too much about the Alaska stuff since you are probably going to flush the plants at the end of the cycle. IMHO, anything is better than MG*. *This is my opinion and I could be wrong. Hope this helps. Post some porn and let's see what they look like.
tomorrow i will have pics, on my journal of course. however i will be hitting them with the MG nutes. they are much more suited for flowering. I got the alaska because it was organic and i liked the numbers. I will do some more research on it, regardless of what is in it i am doubting plant will take them up in the same form. It's like trying to feed your plant with bong water, there is thc in it, but it will never transfer into the plant. I think im pretty set on nuting tomorrow, better to fix the issues and risk overwatering than to continue any leaf issues. dont you think?
Man, I can't speak to the N-P-K values (meaning I don't want to bull shit you faking like I know something I don't). What I do know is that for bloom, you want to back off on the N and move towards the P. That said, I generally stay with the N and add P during the first 2 weeks of bloom - the plants really like and use the N (voice of experience talking). I judge when to stop with the N when the stretch slows. It's hard to tell from the pictures if you have the 'claw' (leaf tips curling downward-sign of overwatering) So, go ahead and make up a gallon of nutes. You don't have to feed the whole gallon, why not give it like a quart and see what happens? Hope this helps
grrower, any word on your plants progress? Similar prob w/mine. Thursday: Check my DWC pH, notice that the reservoir is only 1/2 full. The pH turns out to be fine, 5.8. Roots are healthy, tops are baby beautiful. Monday night: Notice some serious greenish browning on one Fan leaf, notice darker green parts on some of the other Fan leaves. Immediately check the pH, 4.6. Flush with pH 8.0 tap water. 1.5 gallons/plant. Get on here, try and figure my issue out. This site has an amazing amount of material. Maybe a more plentiful/detailed pull down menu would be awesome here. Eventually stumble upon this thread.... here I am. Tuesday morning: Leaves are about the same, Check pH again, 4.9. Tuesday night: Leaves that had shown the dark green are now showing the browning as well. Only Fan Leaves. It starts in between the middle of the leaf and the edge of the leaf. Dark green, and moves/spreads out in all directions. Then the leaf curls up from the tip.... wilting. I flush them each again with pH 8.0 water, 1 gallon/plant. Wednesday morning: Check the pH, 5.2...... sigh of relief. Rinse it with another 1gallon/plant. Will check it again tonight. Hopefully rinsing them again with a little bit of diluted nute water. I am using dyna-gro bloom. Question: Will adding nutrients make the pH decrease, then as the plants consume the nutes, the pH rises? This is the assumption I had from day 1. Then would that mean, if it is a P deficiency, that my plant was on Nute Lock?...... considering the pH was 4.6, meaning that the pH was that high because of the nutes? Hope that you have the answer to all of my plant problems...... then we can start to tackle my real issues..... like my lack of motivation to study!!!!
well im not in hydro so i dont know your specific problem. sounds like lockout though. im pretty certain my problem was a nute def. I watered yesterday with full strength bloom nutes, at the risk of overwatering. luckily they dont show signs of being overwatered and the leaf issues have stalled. Another good sign is that the smell is back and stronger than ever. Ill need to give them a few days to make sure that the issue is fixed.
Kewl, and yes... the leaves do not smell as fragrant as they did, the stems are basically all that stank. Thanks.
if you organic nutrient are not OMRI certified (organic materials review institute) by U.S standards it is not organic....