brown spots and curling leaves

halloweener

halloweener

Active Member
Sup guys,

My pineappe kush has a little problem that needs some attention.
Since a few days, the leaves are curling kinda funny and they have brown spots starting from the tip downwards.

Info:
temp: 21 degrees
rh: 74%
light soil mix, watering every other day
using B'cuzz 1 component bloom nutes every 2 days (the package says more often, keeping it safe though).
250w hps from a safe distance

Is there anyone who could help me? Would be much appreciated.

Cheers :)
 

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Steve1967

Well-Known Member
Looks like nuteburn in the second pic.
I grow hydro but the problems are the same so I would flush and feed with less.
 
cozz

cozz

Well-Known Member
hi im not up to scratch with your nutes but if your feeding every 2 days id be more worried that you've a build up of something that maybe causing the start of a lock out, also if your in bloom id try to get that humidity down a bit to be safe, just dosent look like burn to me also with the twists I think ive read too much n can do that, where abouts on the plant are the damaged leaves top/mid/bot? hows the run off ph, if you've recently flipped might be needing mag,
 
halloweener

halloweener

Active Member
cozz said:
hi im not up to scratch with your nutes but if your feeding every 2 days id be more worried that you've a build up of something that maybe causing the start of a lock out, also if your in bloom id try to get that humidity down a bit to be safe, just dosent look like burn to me also with the twists I think ive read too much n can do that, where abouts on the plant are the damaged leaves top/mid/bot? hows the run off ph, if you've recently flipped might be needing mag,
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I don't have any ph measuring tools mate :/ It's about 4 weeks in flowering now. I've flushed thoroughly yesterday but it's still going on today. I guess I'll have to wait till tomorrow to see if it gets any better.

What's your advice?
 
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az2000

Well-Known Member
The spots look a little dark/purpleish to me. I'm thinking early P def.

You need a ph pen. A lot of stuff is locked out if your ph is too low.
 
cozz

cozz

Well-Known Member
got to agree about the phosphorus especially as its in bud development and the curling leaves, I know you haven't got ph pen ect but for a couple of quid you can get a droplet test, if no hydro shop then a fish/aquatic shop will do them, if you've flushed without ph ing the water first and it does turn out to be a ph problem then nothing is gonna really change and no matter what you feed it will get worse, I reckon you really need to rule this out as its quite a important time for your plant and you don't want to be kicking yourself over a couple of quid when you've put all the work in alredy let us know how it goes
 
Arris

Arris

Well-Known Member
I see the "Claw" which is associated with too much "N"
here:
Code: 
http://www.growweedeasy.com/nitrogen-toxicity-cannabis
 
cozz

cozz

Well-Known Member
arris is in with a good shout, but clawing twisted leaves are also associated with p deficiency so this is why its important to rule your ph out as either will need a good flush with ph ed water to give you a good base to mend her
 
halloweener

halloweener

Active Member
cozz said:
got to agree about the phosphorus especially as its in bud development and the curling leaves, I know you haven't got ph pen ect but for a couple of quid you can get a droplet test, if no hydro shop then a fish/aquatic shop will do them, if you've flushed without ph ing the water first and it does turn out to be a ph problem then nothing is gonna really change and no matter what you feed it will get worse, I reckon you really need to rule this out as its quite a important time for your plant and you don't want to be kicking yourself over a couple of quid when you've put all the work in alredy let us know how it goes
Click to expand...
I think you're right, stupid of me to overlook it.
The weather here is becoming colder, at night too, so I think the dropping temps might be causing the P deficiency.

I'll try to keep her alive for another month, gonna start feeding again so she'll have the P available to absorb during the daytime (when it's a bit warmer).
Also, gonna try my best to up the temps in my basement a bit.

Thanks for the useful advice :)
 
cozz

cozz

Well-Known Member
and does it really say to feed every two days with your nutes?? if your doing that every other day along with watering id be sure youd be getting a salt build
 
halloweener

halloweener

Active Member
cozz said:
and does it really say to feed every two days with your nutes?? if your doing that every other day along with watering id be sure youd be getting a salt build
Click to expand...
funny thing is: is doesn't say how frequently to feed... it just says that I should water it without nutes once a week.
I guess i'll have to watch out with feeding my smaller plants...i'll just water them with nutes when they dry out while also watering (just water) once a week.

i've been a bit sloppy with the feeding shedule I must say :/
 
Arris

Arris

Well-Known Member
halloweener said:
funny thing is: is doesn't say how frequently to feed... it just says that I should water it without nutes once a week.
I guess i'll have to watch out with feeding my smaller plants...i'll just water them with nutes when they dry out while also watering (just water) once a week.

i've been a bit sloppy with the feeding shedule I must say :/
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When I grew in dirt I only fed the plants every second watering. Which was about twice a month. In dirt the nutes go a long way, in water a nute change can be eating in a few days if the plants are big. I run a 1500 PPM mix and in 5 days my plants take that down to 700PPM, In a week the water is no good. Good luck bro.
 
cozz

cozz

Well-Known Member
yeah id be looking more towards letting the plants tell ya what they need, soil is very forgiving like that, but just coz its gone dry doesent mean it needs feeding nutes, especially in flower they do seem to drink a lot more water, as arris says every second watering or so is good thats how i run in general, helps keep the roots ph normal, im of the school of thought that you feed the soil and let the plant take what it needs, then replace, not overloading with the nutes and ending up with lock out
do let us know how the original problems going though have you looked at the ph yet???
 
halloweener

halloweener

Active Member
Arris said:
When I grew in dirt I only fed the plants every second watering. Which was about twice a month. In dirt the nutes go a long way, in water a nute change can be eating in a few days if the plants are big. I run a 1500 PPM mix and in 5 days my plants take that down to 700PPM, In a week the water is no good. Good luck bro.
Click to expand...
Did you use half dose or something? So your advice is like: nutes, water, nutes water,... and in the meanwhile you let it dry out?
My autoflowers have about two-three weeks to go before I need to start flushing.
 
halloweener

halloweener

Active Member
cozz said:
yeah id be looking more towards letting the plants tell ya what they need, soil is very forgiving like that, but just coz its gone dry doesent mean it needs feeding nutes, especially in flower they do seem to drink a lot more water, as arris says every second watering or so is good thats how i run in general, helps keep the roots ph normal, im of the school of thought that you feed the soil and let the plant take what it needs, then replace, not overloading with the nutes and ending up with lock out
do let us know how the original problems going though have you looked at the ph yet???
Click to expand...
Didn't look at the ph yet, haven't had the time to go buy a testing kit. I'll go look for it perhaps tomorrow, I also have a bucket ready (which is corrently sitting in my room, planning to let it breathe for 24h). If my pineapple kush doesn't look better by tomorrow, I'll post whole pics of the plant and buy a ph kit.

I have learned though, the autoflower probably can go with a few feedings/month. They are relatively small too.

I have a 3.5 months old haze berry plant as well, and that bastard needs to be fed every watering with one liter of water (probably cuz it has sucked all the nutes from the soil by now).

Here's my grow journal for the curious ones among you (once more, it's the pineapple that has problems atm, my caramel is doing fine):

http://rollitup.org/t/haze-berry-grow-journal-road-to-a-gaint.840426/page-2#post-10968689
 
A

az2000

Well-Known Member
cozz said:
and does it really say to feed every two days with your nutes?? if your doing that every other day along with watering id be sure youd be getting a salt build
Click to expand...
I'm a little unclear on alternating feed and water only. If he feeds 1/2 tsp (for example) every feeding, wouldn't that be the same as feeding a tsp, then water only? He won't get salt build up if he's not feeding too much?

I've wondered about this for a while. The only reason I've heard to feed water only is to allow the beneficial microbes recover. Apparently they're impeded by synthetic nutes. But, if they're impeded only half as much all the time, it seems like that would be the same as impeding them twice as much -- half as often. :) So, I still don't understand the water-only thing.
 
cozz

cozz

Well-Known Member
az200 I see what your saying, but as were dealing with a live product we cant guarantee that the plant would take all the feed up even at half strength especially if the ph is out, as im sure you know the plant takes different amounts of nutes at different ph"s like the way hydro guys like to swing the range of ph to get a better administration of feed, but IF hes got a lock out I reckon it would be down to the amount of feeding/ph I totaly agree about the microbes, I still use blackstrap molasses for that myself, I think it comes down to not trying to force feed I mean I like to eat myself (im fat) but even I just need a drink sometimes:lol:
 
halloweener

halloweener

Active Member
az2000 said:
I'm a little unclear on alternating feed and water only. If he feeds 1/2 tsp (for example) every feeding, wouldn't that be the same as feeding a tsp, then water only? He won't get salt build up if he's not feeding too much?

I've wondered about this for a while. The only reason I've heard to feed water only is to allow the beneficial microbes recover. Apparently they're impeded by synthetic nutes. But, if they're impeded only half as much all the time, it seems like that would be the same as impeding them twice as much -- half as often. :) So, I still don't understand the water-only thing.
Click to expand...
He's talking about feeding/watering a few times a month, so I would think it's indeed benificial to feed and let that sit for a while... and then
rince it all out with pures water (for salts etc).

If you're feeding with nutes all the time, albeit at half dose, it builds more salts and hotspots than to alternate... correct? :p
 
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