Need advice with my plant

Hey, so i've been growing this autoflower bud for around 55 days. A while back, I realized some symptoms of the nutrient burn, but also some other symptoms that looks more like a set deficiency.

The plant always looks droopy (under-watered) and quite often top stems start bending down, even after the plant has been watered.
Lots of leaves, as well as future flowers, turned yellow – mostly the ones below the top-most green layer.

Here are some photos, please help me identify. My best guesses are: 1. root problems, 2. severe nutrient burn, 3. nutrient deficiency
photo_2020-05-12_09-14-07.jpgphoto_2020-05-12_09-14-13.jpgphoto_2020-05-12_09-14-23.jpgphoto_2020-05-12_09-14-26.jpg
 

CannaCountry

Well-Known Member
Don't guess at your plants...especially if one guess is too much fert, and the other is not enough (deficient)...

Provide details of your grow...be specific. Also, full plant pics under white light would be better than the close ups.

Your plant is not suffering from nutrient burn, but it is suffering.
 
Here are some extra photos - not close-ups.
photo_2020-05-12_13-18-44.jpgphoto_2020-05-12_13-19-13.jpgphoto_2020-05-12_13-19-19.jpgphoto_2020-05-12_13-19-23.jpgphoto_2020-05-12_13-19-26.jpg
  • So, I've been using BioBizz All mix soil and the biobizz nutrients as indicated on the instructions paper. Most recently, switched to 1/2 and now to zero nutrients - worried that it might be a nutrient burn
  • Besides this, I was using at first a 250w MH/HPS, and now transferred to a quantum board 200w
  • For the past two weeks or so, growth has been very slow - only about 5 to 10 cm growth (if not less)
  • The plant is on the day 55
  • I water the plant every 2 to 3 days when the growing bag gets quite light
  • For the past two weeks humidity has been consistent at 40% and temperature from 23 to 27
 

Bukvičák

Well-Known Member
I am not sure, but I have seen a similar pictures and grower had the same issue. Problem was: root aphids
 

CannaCountry

Well-Known Member
Your girl looks short on Mg and she looks hungry. Have you tried to up her watering frequency? What pH are you running?
 

TreeFarmerCharlie

Well-Known Member
When the branches stay up, and the leaves hang, then that is usually a sign of the plant being thirsty. When the branches and the leaves hang that it usually a sign of over watering. I've only been growing for a little over 2 years, so take this for what it's worth, but I think those plants look over watered and are deficient in N from either under feeding or from lockout due to over feeding. Your upper leaves would have burned and dead tips if they were suffering from nutrient burn. To me, it looks like the plants are pulling the nitrogen out of the old leaves to feed the new leaves.
 

Bukvičák

Well-Known Member
These “well-know” members are talking about nute def for obvious reason (appearance of the plant) but important is, why is this happening...? Food is provided as said. Seems to me as root aphids! Check the net for the symptoms and please let us know, what was the problem (If you will find it out)...
 
Thank you all

Bukvičák. Yeah, it does look like a Root Aphid. Perhaps it came with the soil I bought.

CannaCountry could be the case. I do not run any Ph tests these days; so, unfortunately, I can't really tell. I will try purchasing a Ph meter, I'm sure it will help.

TreeFarmerCharlie i can see it being the case; perhaps that is a deficiency was caused by a lockout – plant simply is not capable to get the food it needs. Alternatively, I shall just give it more food. Ph meter could have come handy for this one :)
 

Werp

Well-Known Member
My guess is root aphids, Had them in an outdoor grow and sheen of the leaves appears to be the same. They turn almost a slight milky green.
 

Bukvičák

Well-Known Member
BTW I am being really sorry of your plant, she looks like she wants to give you half kilo of buds... dont be sad, keep your head up! I know that feeling bro ;-)
 

Bukvičák

Well-Known Member
Anyone help me out with my autos! I switched them to an 20/4 light schedule and checked on them in the morning and seen only two of my leaves droopy? It’s not due to over water
At first I must say that the light is crap. With this light you will always run into some kind of problem. It is also not good visible so it is difficult to say if it is overwatered. Plants usually “drops” when the lights turn off, when they are cold or overwatered...
 
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