Plants wilting and yellowing a little at the middle and bottom of the

[danieljtill]

Could anyone give me some advise please, my plants are now 6 weeks old, grown fine for the first 4 weeks from cuttings (rooted) however since transplanting them into larger pots (oh im using coco by the way), they have started to wilt, yellow a little and generally dont look as healthy as they previously did, i hand water using coco at 20ml of both a and b and i was ph'ing the water at 6.0, after i noticed the wilting and yellowing i flushed the plants with clean 6.0 ph water and tested the run off, of which 2 gallons of 6.0 water had become 6.4, does this mean that the medium is much higher than the 6.0 im looking for, i have also noticed that if i leave water in a reservoir after 2/3 days the ph rises from 6 to 6.5 or higher, anyway have started using 5.5 ph and still waiting to see if this helps, any one got any other ideas what the problem cud be i also foliar feed using nitrozym, and use rhizotonic in my feed, they're under 600w hps, temps at 25-28 during the day and 20 at night, theyre in 17 ltr polythene grow bags, if it will help i will get some pics up soon as i get a lead for my phone.

SAFE!!!

[pisspotgrower]

Hey ya man im a coco grower as well:) I find if yellowing and wilting there r 2 things.

 

1. Over water under fed or

2. under fed over watered.

 

Both under and overwatering can cause wilting and i usually find the yellowing is not enough nutes and or overwatering.

 

Put up some pics help alot more

 

and a proper flush is achieved with 3-5 times ya post size so ya lookin at least needing 60 liters, 2 gallons is about 10 i think which wont cut it

[danieljtill]

hey, ye i considered it may be overwatering as i have just potted to the new containers well about 4 weeks ago, and as the roots hadnt grown in yet its possible to overwater, have reduced the waterings, and only water when almost dry, however that does take 2/3 days for some of the plants, except my ak, which is sucking up 2 litres a day and thriving, except for one twisty top site. gonna get some pics up tomorrow, thanks for the reply much appreciated.

[Radic]

greetnz

 

seen all good advice from pisspot

it could be a root problem

100% correct flush is crucial, everytime

imho

in certain climates, pure coco grows can be troublesome

eg here in nimbin i find it better to keep the coco content under 30% of the potting mix

in my experance

coco needs microbes to really produce

after a correct flush

i would try a microbial supplement like worm juice

crucial

to use as a---> supplement <---means --->10% or less

seen

so add no more than 10% more to your recommended CF

seen

as you work pon the root zone try this

instant first aid for sick plants

 

anytime and everytime you suss a root problem

 

start folia feeding<---- asap

use a high K spray like liquid kelp or eco carb for shock

sieve shock can cause a plant to use up all it available K is 1hr

 

mix and spray as directed for folia spray

 

pluss a little P like liquid guano for her flowerz

same

mix and spray as directed for folia spray

usually safe at around 100:1 mix

make sure you read and follow the directions for folia [spray] feeding

 

warning major general warning

never spray under hot lights ,,,,ever

never spray in full direct sun light

 

this will cause the plants to transpire or sweat and actually lose water which will cause your plants to wilt

seen

irey guidance

[danieljtill]

Ok so what i should do is flush all the plants with around 50l of water, ph adjusted, then start a foliar feed reigieme, however if i supsect overwatering would the flush not do more harm than good right now? also im using chemical ferts so is it ok to use the worm juice and other organic supplements?

 

i was also using nitrozym and rhizotonic as a foliar spray once a day, maybe as i sprayed during midday lights at there hottest, that could have caused the problem?

 

also since changing the ph t 5.5 ive noticed no real change in health it has only been a few days though maybe 3/4 waterings.

 

thanks for the advise radic, much appreciatated

[Radic]

as i sprayed during midday lights at there hottest, that could have caused the problem?

right on

this will seal it

did the problem start after the first spray during full light??????????

imho

thats the cause right there

the problem is dehydration

the leaf is loosing water too fast due to transpiration

temps at 25-28 during the day

too hot

maintain the grow room air space at 24c for faster growth rates

if that is not possible than Co2 injection is a must

i supsect overwatering would the flush not do more harm than good right now?

maybe

is it due??????????

if it all seams to check right CF and PH and timing ect

than is may not be necessary

if the root are healthy a flush will be good

flushing can only cause a problem if the drainage is very poor

or if employed ina incorrect fashion

 

also since changing the ph t 5.5 ive noticed no real change in health it has only been a few days though maybe 3/4 waterings.

5.5 is too low

naworrie

coco will buff the PH to neutral which is 7PH

thats what it does

it is designed by mother nature to germinate and nurture a baby coco nut tree in sandy soil in high rain fall areas

coco will continually try to maintain 7ph, water and whatever nutrients it can soak up and hold for the coco nut seedlings roots

there certain microbes that coco favors too

if your using cannas coco nutrients that it is all in the mix already

and a supplement of worm juice will be irey

remember a sup is only a small boost around 10%

however most nutrient solutions will be compatible with beneficial microbes

check with the manufacturers recommendations at their web site

guidance

[danieljtill]

radic you genius i think you just pin pointed it, i remember now that it did start soon after i started using the nitrozym, in which i sprayed in full light, so dehydration you say? what would you recommend as the best way to sought it out?

 

I dont think i do need to flush they've only been in the new pots for around 5 weeks, and i keep the nutes at half strength, i will make sure to flush however before i start flowering which was planned for next sunday but im thinking i wanna get em healthy again before i switch.

 

The grow room temps a wierd one for me to answer, if i put the thermometer at the edge of the room it will say between 20-23 during the day but closer to the lights and it can go up to 30, i think i may need better air circulation as i got 2 x 5 inch fans out of the room through cf, and 2 x 4 inch in, 2 lights at the moment but gonna be going to 4 when i start to flower, all in a room 10' x 10'

 

I will return to the 6.0 ph level as im quite convinced now that the ph is not the problem

 

Another thing that may help is that the plants perk up after about an hour of the lights coming on and then say closer to third to half way through the 18 hour light cycle start drooping again until by night the leaves can sometimes be pointing to the floor, also with the leaves curling under.

 

once again thanks for the advise radic nothing worse than feeling completeley helpless when my babies are crying for help,

[Radic]

The grow room temps a wierd one for me to answer, if i put the thermometer at the edge of the room it will say between 20-23 during the day but closer to the lights and it can go up to 30, i think i may need better air circulation as i got 2 x 5 inch fans out of the room through cf, and 2 x 4 inch in, 2 lights at the moment but gonna be going to 4 when i start to flower, all in a room 10' x 10'

AC rulez everytime

 

Another thing that may help is that the plants perk up after about an hour of the lights coming on and then say closer to third to half way through the 18 hour light cycle start drooping again until by night the leaves can sometimes be pointing to the floor, also with the leaves curling under.

its the high temps that dause dat

temps at 25-28 during the day

more water will help at least 2 or 3 times every light cycle

as soon as you notice dem wilt like that

add co2 that will help deal with high grow room temps

guidance

[danieljtill]

I dont think i can water more often as the plants dont seem to suck the water up in the pots for 2/3 days, i did last night try doing a foliar feed lights off this time, just had a fluorescent on so i could see, however 2 hours after doing this the plants seemed at there worst, i just used nitrozym, 4ml/ltr, didnt ph the water standard 7.0 the tap pumps out, i have got a 12 inch fan i could use but dont have a carbon filter for it so dont really wanna risk the smell escaping, would pedestal fans in the room help at all, it doesnt seem that hot in the room to be honest only toward the lights but the plants are 2 feet at least from the plants, last night i put my thermometer under the lights on the floor so about 4 feet from the light, and the temperature maxed at 26 and went down to 18 at night.

 

could i use a spirit lamp (just a small lab one) to add c02 i read an article saying it was one of the best options, as money is a consideration. apparently for every fluid oz of spirit burnt 1/2 a lb of c02 is produced however heat may be an issue too

[Radic]

would pedestal fans in the room help at all,

yes

good air circulation is a must for max growth rates

 

it doesnt seem that hot in the room

30 sec room temp test

put your hand directly under the light at the same height as the top most plant

if after 30sec it starts to feel uncomfortabley hot or burn even

than it too hot

move the lights up

or

move them down till it feels warm and cosey very comfey

 

better still

a mean temp gauge is a must

hang it from the light pon a string to find the right height for your plants

 

could i use a spirit lamp

yes

you are the genius

i can see the light of that

co2 is heavy

so ideal is to mount your spirit lamp, high and outside the grow room

securely mount the spirit lamp inside a container like a bucket<--- with a hole in the bottom and a pipe attached to the hole so that you can capture and direct all the co2 produced by your spirit lamp down on to your plants from the top

just light the lamp and let gravity dowit all for yah

pure genius

gotta love dat

irey guidance