Anyone know what this could be ?

[Gward20]

Yes some of those leaves do look dodgy @Gward20 So if it is overfeeding it`s hardly a problem yet but im not sure if it is tbh, what medium is he using to grow in and ferts used ?

He is using canna coco mixed with charge and dynamyco. They are drinking 2 litres everyday and are bone dry every time it comes to feeding. He is currently feeding them pk 13/14 at 0.25ml and A&B at 2ml.

[GMO]

i agree with 2-scoops. check the underside of the leaves with a loop. the shite is black and any lil light colour dots try study for a lil while see if anything moves

[2-Scoops]

He`s hardly overfeeding at that if he`s getting run off and slinging it down shitter rather than letting em, sit in it, but pk boost is pretty harsh stuff, but even that used @ 0.25ml is hardly nothing although you do get odd dodgey leaf lopoks burnt using it, i always do. But i can see your point looking at odd leaf tip, then i see those spots and to me that`s not looking like overfeeding at moment. I`m just not sure cus it still looks buggy in some pics and even the first picture i thought mold of some sort when i first saw it, that`s where my heads at. Can you get your hands on ec pen and check run off and its high drop fert strength and if not just flush pots through anyhow, but that won`t tell you if it is that but it won`t hurt anything to do it. Tbh i can`t see why it would be overferting with that amount of ferts he`s using with those big plants. Maybe they`re picky fookers.

[Gward20]

He`s hardly overfeeding at that if he`s getting run off and slinging it down shitter rather than letting em, sit in it, but pk boost is pretty harsh stuff, but even that used @ 0.25ml is hardly nothing although you do get odd dodgey leaf lopoks burnt using it, i always do. But i can see your point looking at odd leaf tip, then i see those spots and to me that`s not looking like overfeeding at moment. I`m just not sure cus it still looks buggy in some pics and even the first picture i thought mold of some sort when i first saw it, that`s where my heads at. Can you get your hands on ec pen and check run off and its high drop fert strength and if not just flush pots through anyhow, but that won`t tell you if it is that but it won`t hurt anything to do it. Tbh i can`t see why it would be overferting with that amount of ferts he`s using with those big plants. Maybe they`re picky fookers.

I have grew this strain twice now without any complications. He is feeding at ph 5.9-6.0 and Ec 1.6 so I can’t see it being overfeeding. I’m thinking of putting 10L of ph’d water through them tomorrow and just seeing if that does anything. I bought some fly stickers earlier on and gonna see if anything sticks to them. I’m hoping it is just burning from foliar feeding. I will keep everyone updated. Thanks all for the advice

[kbag]

Before scrolling down i thought he has been spraying these with the lights on, scrolled down and there was the answer you had said he was spraying them whilst under the 600w HPS. I would also take Jimmy's advice to check the underside of the leaves for mites as a precaution. You can place white paper on the pots and shake the plants often mites will drop on it and its easier to see them.

[Gward20]

i agree with 2-scoops. check the underside of the leaves with a loop. the shite is black and any lil light colour dots try study for a lil while see if anything moves

I already have mate and couldn’t find anything. When he flipped them to flower he stripped about 70-80% of leaves and branches as he is aiming for head buds only. Maybe the heavy defol could be the issue ? But then again I butchered mine to death on day 1 flower and never had a problem.

[Gward20]

Before scrolling down i thought he has been spraying these with the lights on, scrolled down and there was the answer you had said he was spraying them whilst under the 600w HPS. I would also take Jimmy's advice to check the underside of the leaves for mites as a precaution. You can place white paper on the pots and shake the plants often mites will drop on it and its easier to see them.

Good idea mate I will give that a try tomorrow. This optic foliar shite says on the bottle “can be sprayed with lights on” but I’m not gonna do it again

[2-Scoops]

Yes i`ll go with what Kbag said after reading your last post Gward.

Dropping fert strength to 1.6 to around 1.0-1.2 after 4 or 5 weeks on 12/12 won`t hurt and prevent salt build up, but 1.6ec for stage they are at stretching like mad isn`t high, but yes i suppose it`s worth checking run off too int it before slinging lots of water through pots, cus then you`ll get your answer as to whether you are or aren`t overfeeding.

[Gward20]

Yes i`ll go with what Kbag said after reading your last post Gward.

Dropping fert strength to 1.6 to around 1.0-1.2 after 4 or 5 weeks on 12/12 won`t hurt and prevent salt build up, but 1.6ec for stage they are at stretching like mad isn`t high, but yes i suppose it`s worth checking run off too int it before slinging lots of water through pots, cus then you`ll get your answer as to whether you are or aren`t overfeeding.

Thanks @2-Scoops I will keep everyone dated. I will go and feed them tomorrow at a lower Ec and collect the run off of a few plants and test it

[2-Scoops]

Yes i`ll go with what Kbag said after reading your last post Gward.

Dropping fert strength to 1.6 to around 1.0-1.2 after 4 or 5 weeks on 12/12 won`t hurt and prevent salt build up, but 1.6ec for stage they are at stretching like mad isn`t high, but yes i suppose it`s worth checking run off too int it before slinging lots of water through pots, cus then you`ll get your answer as to whether you are or aren`t overfeeding.

Thanks @2-Scoops I will keep everyone dated. I will go and feed them tomorrow at a lower Ec and collect the run off of a few plants and test it

Use same strength you`ve been using for a true`R reading mate, at end of shift as said 1.6 int high for stage they are at as you know they are walloping ferts down atmo for 3 to 4 weeks on 12/12.