Lower&Mid Fan leaves going dark and crisp??

My lemon og plant is about 40 days into veg.
And lower fan leaves are starting to turn "dark". Not necessarily brown. Starts from the tips moving inward. They get crisp and eventually fall off or are very easily plucked.. leaflets also start to fold together.. here's a pic. Any opinions or if you have seen this before please leave some input. Thanks for reading.

Soil.
Heavy16 veg a b
Super thrive
OG biowar root pack
Molasses
Pure essentials zym

Welcome to RIU, and the wonderful world of cultivating the world's most misunderstood and feared medicines!!!

The only 'advice' I can give you or anyone is to read and learn and then apply what you have read and learned to your garden and you cannot fail. Anyways, remember the search tool is your friend...Lots of folks here willing to help a new farmer get up and growing. But at the end of the day your grow will be only as good as the knowledge and work you put into it.

It is always great to ask questions but do not take anyone's advice or opinions and follow blindly. Do your own research, you will be much happier knowing you have done it for yourself and by yourself. The first buzz you get from your own budz...is by far the BEST high you will ever have!

As for your current issue...I would start here and do more research...http://www.growweedeasy.com/nitrogen-toxicity-cannabis


Good Luck and Great Growz!!!

IMO opinion. I'd say under watered, not enough humidity. And a little too much nitrogen. But ijm not a botanist

There can be a good number of possible reasons for this.. but here's what I observed:
the leaves resemble that of a plant in early root rot stages; They're clearly wilting. Disease is very possible.
What was stated in post above is also a good input
Extreme nitrogen toxicity/nute burn combined with very dry conditions can also be considered


Noticed any leaf yellowing before these symptoms came up?
Water schedule? Has plant's water consumption reduced?
max/min temps/humidity?
Pics of full plant?

As post #2 has kindly explained, others can offer you possibilities based on their own experiences and knowledge, but you will learn the truth eventually of what the problem was as you retain more and more info on this plant's wonderful biology
I'm a new member here, but certainly experienced none the less. Take my input not with certainty but with a means to null out potential variables.

Good luck

Thanks people. I appreciate you guys.

itchyB said:

There can be a good number of possible reasons for this.. but here's what I observed:
the leaves resemble that of a plant in early root rot stages; They're clearly wilting. Disease is very possible.
What was stated in post above is also a good input
Extreme nitrogen toxicity/nute burn combined with very dry conditions can also be considered


Noticed any leaf yellowing before these symptoms came up?
Water schedule? Has plant's water consumption reduced?
max/min temps/humidity?
Pics of full plant?

Click to expand...

No yellowing.
I Nute every feed. I'm planning on doing a flush today. They are thirsty.
I feed them about twice a week untill runoff.
Runoff is rather quick with Bush doctor soil.
I havent noticed a change in water consumption either.
Rh is 54/51
Temps are 72/70

*3rd pic you can see 3 more infected fan leaves

itchyB said:

Take my input not with certainty but with a means to null out potential variables.

Click to expand...

Yes this what im looking for thanks RIU.

$bkbbudz$ said:

As for your current issue...I would start here and do more research...http://www.growweedeasy.com/nitrogen-toxicity-cannabis


Good Luck and Great Growz!!!

Click to expand...

Thank you my man. That was some good info to know.

Someone posted these for me 3 years ago.
Trial and error and lots of reading is how I got to be an "ok" grower.
I still have lots to learn.
Good Luck and enjoy the hobby.
Bless,
DZ

Nice post dogenzengi, should be on every grower's wall

I inspected the root mass. And the roots seem to be thriving. They look healthy white. Almost root bound. But As I was observing for about a minute. I seen one little tiny white insect. Only one. I tried to get him but he got away.

roundplanet said:

Nice post dogenzengi, should be on every grower's wall

Click to expand...

Thank You Roundplanet
DZ

If you are feeding it nutes every watering then I would certainly suggest that you hold off on the nutes for a few days to a week after flushing. You will see a difference in the plant after doing this, good or bad; likely good. If good, then you may have found your source
What's your light and what's the distance to plant?

After I flushed today. The soil ph was between 6 and 7. I will look for improvement .I might of went a little overboard last feed
I have a 32 watt t8 and a 50watt led. About 6 inches away.