Need some help with a solution please. 4 plants total, 2 are not with the program and look like different problems the other 2 seem to be okay. This is progressing very quickly.
Media fox farms happy frog with added chunky perlite. In 2 gallon fabric pots. Using ff trio and cal-mag following directions, occasional epsom salts. Between 5- 6 weeks flower. Did a soil slurry ph test with distilled water tested at 7 ph, and run off test over the course of 3 days. Slurry =6.5 ph, runoff =6.2 ph. I let them dry between watering/feeding. Had a few leaf hoppers about a month ago but wiped them out with DE after thorough investigation.
Romulan x Korean Skunk: large brown sort of gray patches, crispy leaves.
This won’t help but I’ve been dealing with this same problem in this same soil. I haven’t been doing anything with PH and assumed that it was the issue. I feed Epsom salt and it worked good in veg but about week 5 of flower they started getting worse. I’m going to mix a little lime in my next run and see what happens. Good luck.
There are a bunch if things that can cause what I am seeing on your leaves from PH levels to nutrient deficiencies to lack of air flow to temperature to improper watering or pests.
The bottom line as I see it is that the two plants affected are not showing it in the newest leaves.
These plants are also not that far from finishing so limp them along and you should be fine until it’s time to harvest them.
Im leaning toward some sort of lockout/imbalance. Different strokes for different folks plants included. my ph inputs have been consistent, temp and humidity are pretty on point with controls temp 72-82f, humidity at 50% +/- 5% at leat says my aci controller, good circulation inside with fans good exhaust and intake. Maybe ec will tell, definitely pushing to the end, not much further to go.
I would ditch the epsom salt , it’s easy to over do it and some plants are more sensitive than others .
Too much will burn roots and can lock out nutrients causing that exact look.
Here is a link to a good visual guide , I’d vote phosphorus deficiency caused by lack of uptake not lack of its availability.
Also be careful with epsom salts because some is actualy sodium chloride not magnesium sulphate
Look at this bs
Could very well be calcium deficiency… When you start adding Epsom salt, you greatly increase the magnesium thus drowning out the calcium. Calcium and magnesium must be in proper portions or they easily lock out the other. I generally do not add magnesium, unless you were already adding calcium and notice a magnesium deficiency. Rarely, would you have a magnesium deficiency unless you were already previously adding calcium that created the deficiency of magnesium. You should review your feed or nutrients for a Cal deficiency or too much magnesium. This could be corrected with flushing and adjusting the feed for the correct ratios. Every plant is different even clones from the same mother some will be Cal Mag hungry others not so much. Just always assume you’re going to use more calcium than magnesium. Just my 2 cents Cheers !!!
Yes it does look like calcium plus nitrogen deficiency combined, if the nutrients are there would point to lock out or root damage , luckily they are far along , I would inspect the roots and soil once they are chopped for signs of problems
A report from the 1980s by the National Academy of Sciences pointed out some vital facts: Up to 95 percent of chemicals used in synthetic fragrances are derived from petroleum (crude oil). They include benzene derivatives (carcinogenic), aldehydes, toluene and many other known toxic chemicals linked to cancer, birth defects, central nervous system disorders and allergic reactions, including a fragrance sensitivity allergy.
Unfortunately, 40 years later, toxic ingredients continue turn up in products we use and breathe in on a daily basis.
@breadwinner I used to love the new car smell until I figured out what it actually is… now I roll down the windows. I’m pretty sure it’s taking years off my life lol … Cheers !!!
This is JUST what I do–and is by NO MEANS a ‘pro tip’…but works well!
Next go around- if still using Happy Frog, amend it!
The pearlite was a good start, but adding something inert, like coco and a good granular organic such as ‘Espoma Flower Tone Bloom Booster’ and ‘Poppa’s Perfect Poop’ really helps. Then for the 1st part of the grow, all you do is water with pH adjusted water (6.0-6.5 preferred)
I go 70/30 Happy Frog to Coco-- then about 30% pearlite in ratio to the whole mix.
I then add 1 tsp Espoma and 1/2 tsp Pappa’s to a 3 gallon pot of soil mix.
This should get you through until you go 12/12-- then feed with a LIGHT feeding of organic Bloom Nutes once a week–less if not needed!
Now that we are just using Coco, I don’t use this anymore- but it always worked really well for us!
Also- some powdered beneficial microbes really help!
Just mix it into the soil…and refresh once in a while by mixing into the water.
Won’t help your current grow-- but looks like you are in the home stretch…
So try flushing the hell out of them with pH adjusted water, and after they drain overnight- give them a feeding of bloom nutes at about 1/2 rate. Just keep them ladies alive to harvest! Good Luck Hun!
Late day at work, but checked the ppm and did the math for ec. Definitely overfed, particularly the Romulan cross at 2.4 no wonder it was gettin crispy, the Blueberry cross not so much at 1.7 but still kinda high. I also found that my primary meter is a POS, even after calibration. I had 3 other ppm testers that were all within 3-4 units and im trusting those. Also had some of the ph test drops to help confirm the demise of my cheapo meter. Ph was running slightly high at about 7. Did not do another slurry, day was overly long.
Flushed them well with distilled water then one last flush with source (filtered tap) water all ph’d until runoff was 6.5 ish. Will feed phd 1/2 strength trio nutes +microbe brew. Will ride it out. Thanks all for input, and chuckles.
Good Luck Hun!