Day 38 and VERY yellow leaves. Green Crack, Blue Dream, THC Bomb, Pine

jonjoemurphy · Aug 10, 2014

seaslug · Aug 10, 2014

Buy the Hydrofarm pH drops. I have a pair of Hanna combo meters but the drops are always honest.
I think this is the same thing from ActiveAqua:

bongobongo · Aug 10, 2014

It's my habit to check my meter against the drops

jonjoemurphy · Aug 10, 2014

Ya I realise I fell into a bad habit with the PH.

I've put this post on another forum I frequent and someone has mentioned that it may be a magnesium deficiency. I have to say that when I started to look that up online it does look like it, any thoughts?

I have epsom salts here do you think I should try using them?

bongobongo · Aug 10, 2014

The two biggest things I've heard to keep ph in check is dolomite and Epsom salt

seaslug · Aug 10, 2014

You only have about two weeks to go until harvest? I'm thinking the Mg deficiency and yellowing is a symptom of lockout but I'm too sleepy to verify that thought.

jonjoemurphy · Aug 10, 2014

seaslug said:
You only have about two weeks to go until harvest? I'm thinking the Mg deficiency and yellowing is a symptom of lockout but I'm too sleepy to verify that thought.

Ha ha I know the feeling. End up becoming a vampire in this line of work ;)

Its prob more like 3 1/2 weeks to harvest.

I think ill do a bit of reading today on the epsom, ill be going out tonight they have had 3 days at the higher dosage of nutes so I'm praying ill see an improvement.

way2green · Aug 10, 2014

All of your issues should be resolved fairly easily. Change your reservoir and get the correct ph. Don't overcompensate on the nites. Treat for White fies immediately. The longer those flies eat your leaves the less chance u have to recover. Be careful with white fly deterrents. They can really put you under if the white flies have overly exposed the underside of those leaves

jonjoemurphy · Aug 10, 2014

way2green said:
All of your issues should be resolved fairly easily. Change your reservoir and get the correct ph. Don't overcompensate on the nites. Treat for White fies immediately. The longer those flies eat your leaves the less chance u have to recover. Be careful with white fly deterrents. They can really put you under if the white flies have overly exposed the underside of those leaves

I have ordered some oxyplus. I heard a diluted mix of h2o2 would get rid of them, what would you recommend. Do you think I should still use some Epsom salts ?

way2green · Aug 10, 2014

I have used epsom many times and had success on several types of plants. Much success on sago palms. I have heard really good things about h2o2. I have never tried it. I grow organic so soil is much more tolerant than other mediums. I honestly give them a light application of neem oil while in veg and another light application the first week of flower. I have never had much success getting rid of pests. I have had quite a bit of success at pteventing them. I just apply before there is a problem. I wished I could advise u on killing the critters. There are a thousand threads on those topics.
Good luck

jonjoemurphy · Aug 10, 2014

I've yet to have issues with spider mites I'm not sure that they are a huge issue in the country I'm living, is the the neem specifically for them or will it prevent against all pests?

I'm going to try 5ml of epsom per 5 litre of water tonight as per advice i got on another forum, hopefully that will sort it. I'll know more once my PH meter arrives next week.

The one Grow where I get consistently good temps and then I get this, there is always something :rolleyes:

Seamaiden · Aug 10, 2014

Upload photos directly to the farm if you'd like us to look at your plants. No hotlinking pix, please. :)

usstoner · Aug 10, 2014

Right on..we been seeing a lot of blue dream and thc bomb...both good smoke..

jonjoemurphy · Aug 10, 2014

Seamaiden said:
Upload photos directly to the farm if you'd like us to look at your plants. No hotlinking pix, please. :)

Apologies I had posted in a few forums I use and I just copied and pasted.

I'm on I'll upload in future.:snaphappy:

jonjoemurphy · Aug 10, 2014

usstoner said:
Right on..we been seeing a lot of blue dream and thc bomb...both good smoke..

Grown them both before teh THC Bomb looks like previous grows but the blue dream looks nothing like the ones I got previously which worries me as it was possibly some of the nicest stuff I've ever seen/grown. Smelt like Frys Peppermint cream.

jonjoemurphy · Aug 15, 2014

Thanks for the help lads.

So ph meter still didnt come so got a liquid tester from pet shop, PH is at around 6 and I'm assuming has been all along as I tested under my normal feed routine.

The plants that are yellowing all started at the bottom and worked its way up, Also a lot of them look very close to finish when I looked under a microscope one of the cracks is starting to shoe brown trichromes and the othe cracks and thc bombs are almost all milky. the blue dream & pinapple have yellowing but not to the degree od the other too There is no yellowing at all in the gigabud, delahaze or NL X Skunk. Maybe the fact i have short flower and long flower all on the same schedule means that I under or over fed the shorter flower plants?

Hopefully the meter will come on Monday as the test I got isnt the most exact but at least I know I'm not a million miles out with the ph. I know that 5.8 is better for hydro of course and ill bring it down to that once i have the meter.

straincreation · Aug 19, 2014

I also see thrip damage you say you have flyers. I want to look again but these hotlinks are annoying. From one pic I say I seen some thrip damage and poop From them. Other that semms your plantnis lacking or locked out of certain nutes. Get that ph in line imo but then again I dont grow coco. Not PHing in coco sounds scary man. You gotta be on top of that when running coco from what I read. Best of luck
Happy farmin:)

chuckchill · Oct 17, 2014

WEN EVER I GET SLUGISH,GROWTH. YELLOWING + IDK WHATS DOIN IT? I TURN TO ,MAXI CROP, LIQUID SEA WEED! THAT CHEAP ASS SHIT IS FUKIN AMAZIN 4,ANYTHING!. GIVE IT A WHIRL.ITS LIKE CHEAPER THAN P.H +/=!. LASTS AGES + ,MAKES GREAT TEAS ETC!IF THATS UR BAG.
PEACE.
C.C

jonjoemurphy said:
Okay so brief history on the grow so far.

I am on day 38 since the I flipped to 12/12.

Set up: I am growing using 70/30 coco/perlite in Autopots. 2 x DR240w tents with 2 x 600w HPS in vertical parabolic reflectors. Both tents have their own reservoir but they are on the same schedule.

Food: I've been using Canna nutes at the regular feed amount per their schedule, along with Rhizotonic & Cannazym. I also use Canna PK 13/14 However Canna recommend only to use this for one week. In all of my previous grows I use usually 2 weeks before and 2 weeks after their suggested time starting at 1/3 strength then 2/3 with full does in the middle. I've never had any issues feeding this way before.

Climate: It has been fine around 75F for the most part dipping to 65F at lights off, only have one sensor in the tent placed right under the bulb so cant say for sure that those temps hold true all over the tent. Sensor in my 2nd tent also read the same though. I'll be honest it is unusual for me to have temps like this I almost always have issues with high temps in the 85F-90F range sometimes during lights on, but not this grow even though we have had some of the warmest weather in years.

Humidity: This is an issue always above 60% going as high as 75+% at times. Nothing I can do its very humid and damp where I live and my are is piped in from outside. Every grow is like this.

Pests: I do have a bad white fly (or maybe gnat) infestation at the moment. I have some H2O2 coming which I will be using as a foliar spray to try and get rid. Fan leaves are fairly riddles with tiny white marks where the fuckers have been sucking on the leaves. I was not able to get the H2O2 before now, it should be here Monday/Tue.

Other Factors: I'm embarrassed to admit I have not PH'd my water in a long long time. When I started growing I had a formula for amount of PH- that was needed per litre which worked for me up until now. My PH meter is broken so I cannot check if it is a PH issue but I have ordered a new one it should be here Wed/Thur. Also I have a PPM meter which I never used. It is one of these cheap ebay yokes.

http://www.invalid.com/proxy.php?image=https%3A%2F%2Fcannabis.community.forums.ozstoners.com%2Fuploads%2Fmonthly_08_2014%2Fpost-50910-0-03248700-1407642991_thumb.jpg&hash=ea16b15b0f077df35b01cd9438cc6761

According to Canna my total EC should be 2.4 this week I took a reading of 1290 from Tank A and a reading of 1150 from Tank B 2 nights ago when I took the photos below. Now I'm not sure how to convert but by the looks of it I am well below 2.4 no matter what conversion I use on this chart

I brought the feeding up to Cannas High schedule and will be returning to the grow tomorrow night hopefully it is just a lack of nutes but I'm worried it may be lock out due to PH or some deficiency. Maybe even the gnats/whiteflies (im not sure what they are to be honest, i think gnats)

Anyway here are some photos of the Green Crack, Blue Dream & THC Bomb. They are all new seeds but I have grown these strains before and they are 8 weekers. This is the tent that is being fed by the tank with the lower EC. In the other tent i have the same issue but not to the same extent, the strains in the other tent are all meant to be shorter flower than this tent (Gigabud, Delahaze, Pineapple express, Northern Lights x Skunk)

Anyway here are the photos I'd appreciate any help or ideas that you might have. Thanks!

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Day 38 and VERY yellow leaves. Green Crack, Blue Dream, THC Bomb, Pine

jonjoemurphy

seaslug

bongobongo

jonjoemurphy

bongobongo

seaslug

jonjoemurphy

way2green

jonjoemurphy

way2green

jonjoemurphy

Seamaiden

Living dead girl

usstoner

jonjoemurphy

jonjoemurphy

jonjoemurphy

straincreation

chuckchill

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