Notifications
Clear all

Sick Plant :RE opinions and solutions please

11 Posts
4 Users
288 Likes
1,113 Views
100 Post Likes
250 Post Likes
50 Posts Bling
Posts: 70
Forum Member
Topic starter
(@austin15)
Eucalipto
Joined: 4 years ago

My mother's have just started yellowing the tips and getting these brown spots I've seen a few pics of possibilities but would like more of an opinion.

These are generally feed as and when I see they need to be this yellowing of the tops came on quite quickly after lst and opening up the plant. The plants that haven't got the brown spots are nice green

20211204 141801
20211204 141804
20211204 141808
20211204 141812

 

Grow Medium
Grow Light
Temperature C/F : (Light on/off)
Humidity
Picture of Problem
1638581094-20211204_141812.jpg
Nutrients

Nitrosol original and Goliath

pH Level
EC / PPM / TDS of Feed

0.4 usally. Last feed 0.7 ec

Reply
10 Replies
Shonuff
250 Post Likes
Active Grow Diary Bling
100 Post Likes
5 Complete Grow Diaries
1 Plant of the Month Win
5k Post Likes
500 Post Likes
1K Post Likes
2.5K Post Likes
2 Plant of the Month Wins
10k Post Likes
1k Posts Bling
500 Posts Bling
250 Posts Bling
100 Posts Bling
50 Posts Bling
Posts: 1116
Respected User
(@shonuff)
Limonene
Joined: 3 years ago

Looks to be calcium or manganese difficiency there with those spots.  It could be locking out nutrients or just used all that was in the soil up.  Check PH and EC of your soil with a slurry test or by checking runnoff and act based on that is my best suggestion.  Hope this helps, those brown spots are unfortunately very familiar to me.  Haha

Reply
BubbleHok
Patreon Bling
Active Grow Diary Bling
1 Plant of the Month Win
The High Council Award
5 Complete Grow Diaries
3 Plant of the Month Wins
Discord Member
50k Post Likes
2.5k Posts Bling
Cali Cowboy Grow Off Bling
Member for 2 Years
Posts: 3704
Respected User VIP
(@bubblehok)
Valencene
Joined: 3 years ago

Yeah could be the start of a lockout or a CalMag deficiency, since your feed is fairly light I would be leaning more towards a deficiency, have you got any epsom salts? if so a foliar spray might be the way to go here. One of the soil lads may have a better idea but considering your under LEDs they do tent to increase the need for calmag a bit, well in my experience they have anyway. Being in soil you want that PH to be a little closer to the 6.5-6.8 mark from memory, I run coco so I shoot for around 5.8-6.0. So 6.4 isnt far off and you are feeding lower nutrient levels, It looks more like a calcium deficiency than a mag deficiency though. 

Reply
100 Post Likes
250 Post Likes
50 Posts Bling
Posts: 70
Forum Member
Topic starter
(@austin15)
Eucalipto
Joined: 4 years ago

Awsome thankyou for your replies ill test the soil and it was as I expected mag or calcium I couldn't decide.......ill mix up some Epsom salts I think As I'm not sure where u get a calcium feed for em any more opinions I'm open to anything cheers

Reply
BubbleHok
Respected User VIP
(@bubblehok)
Joined: 3 years ago

Patreon Bling
Active Grow Diary Bling
1 Plant of the Month Win
The High Council Award
5 Complete Grow Diaries
3 Plant of the Month Wins
Discord Member
50k Post Likes
2.5k Posts Bling
Cali Cowboy Grow Off Bling
Member for 2 Years
Valencene
Posts: 3704

@austin15 you can use gypsum, agricutural lime or bone meal as a top dress to correct calcium deficiency's but in this case I would give them a spray with epsom and see how they fare, then you can go down the route of the top dressing if needs be.

Reply
Forum Member
(@austin15)
Joined: 4 years ago

100 Post Likes
250 Post Likes
50 Posts Bling
Eucalipto
Posts: 70

@bubblehok oh ok cool thanks I've done it once before and it seemed to burn the leaves at what dilution would you recommend?

Reply
BubbleHok
Respected User VIP
(@bubblehok)
Joined: 3 years ago

Patreon Bling
Active Grow Diary Bling
1 Plant of the Month Win
The High Council Award
5 Complete Grow Diaries
3 Plant of the Month Wins
Discord Member
50k Post Likes
2.5k Posts Bling
Cali Cowboy Grow Off Bling
Member for 2 Years
Valencene
Posts: 3704

@austin15 I use 1.5 tablespoons to about 5 litres of water, you can go heavier dilution but I find less is more with epsom salts. Can always spray again if it needs more but cant undo a heavy dilution once its on the leaves.

Reply
100 Post Likes
250 Post Likes
50 Posts Bling
Posts: 70
Forum Member
Topic starter
(@austin15)
Eucalipto
Joined: 4 years ago

@bubblehok cool ill do that now thankyou

Reply
BubbleHok
Respected User VIP
(@bubblehok)
Joined: 3 years ago

Patreon Bling
Active Grow Diary Bling
1 Plant of the Month Win
The High Council Award
5 Complete Grow Diaries
3 Plant of the Month Wins
Discord Member
50k Post Likes
2.5k Posts Bling
Cali Cowboy Grow Off Bling
Member for 2 Years
Valencene
Posts: 3704

@austin15 All good bro, try do it just before lights out man you don't want the lights to evaporate it too quickly.

Reply


100 Post Likes
250 Post Likes
50 Posts Bling
Posts: 70
Forum Member
Topic starter
(@austin15)
Eucalipto
Joined: 4 years ago

Well done what you guys suggested  and worked perfectly thanks heaps look mint now

Reply
Macky
Admin
(@macky)
Joined: 5 years ago

Patreon Bling
1 Complete Grow Diary Award
The High Council Award
Admin Bling
Discord Member
10k Posts Bling
100k Likes Bling
Member of the Year
Member for 4 Years
Alpha-Pinene
Posts: 12279

@austin15 Nice, well done everyone Smile

Reply

Our forum is free to join. We are an international cannabis forum that helps people all over the world grow their own personal supply of cannabis. Through our site you will find cannabis breeding forumscannabis deficiency forumsindoor cannabis growing forums, and much more. 

We are a home growers cannabis forum, and we only allow people who grow cannabis for personal use to be members. Our mission is to help you grow your own cannabis. We do not buy/sell/trade cannabis, or equipment for growing cannabis. Our site is strictly a cannabis smokers forum, cannabis growers forum and forum for medical cannabis users.

Use our guides on how to grow cannabis, cannabis grow diaries, and growers forum to find all the info you need to learn how to grow your own cannabis.

Any member who is suspected of growing cannabis for commercial gains will be banned immediately.

Please read our forum rules, and enjoy the site.

Find us on all social networks! Just search for Percys Grow Room