burnt tips

Hello growers, what do you think this is? Some leaves are yellowing or have burnt tips, but not all the plants are showing this problem... Temps are 77°F during day, 64 during night, RH 40%. 20 hours light cycle. I have a spider farmer sf2000 (200w) and a spider farmer sf1000 (100w) both on full...

Burnt tips and yellow lower leaves Flipped switch 29 days ago 600w HPS high par Durbin poison or Blueberry(mixed them up as seeds :( ) 73-77 degrees in the day 45-55% humidity in the day Medium- 100% perlite in 5 gal smart pots, about 10% runoff each watering. Water- every 3 days with 3L/plant...

New grower here, so any help is greatly appreciated. Okay here we go.. the problem is affecting all of the plants in my run seems like in different ways. I'm growing one silver haze Auto, one great white shark photo that seemed to be displaying some deficiency or lockout. I'm growing in I'm...

Is this nute burn? The tips are super dark brown almost black and seem to be burning up the leaves from the edges going inwards. I have some plants growing in 2 different soils (fox farm ocean forest & sohum) with the same problem. My sohum plants got some nute burn on them but some of the fox...

DWC 5 gallon in 4inch net pots Flower day 51 Ph averages about 5.7 PPM averages between 750-1000 Drinks about a gallon a day of water Add nutrients in about every 3 waters Every 3 days or so I add Calmag 2ml Hydroguard 2ml-3ml FF big bloom 4 tsp FF grow big 2 tsp FF tiger bloom 1 tsp FF cha...

so I'm four weeks into flower growing in soil under 600w hps I've just noticed some problems with the tips of the leaves and some patchy brown spots over one or two of the whole leaves. Any ideas guys?

It looks like nutrient burn but I haven't added any nutrients which is probably the problem is someone could give me advice on what to do and how to I would appreciate it first time grower here.

My dosidos clones from PURPLE CITY GENETICS are yellowing and tips are looking burnt ? I have them under Four 4ft T8's 4100K 40w lights. I also put like 2 drops of root excelurator into a Nestle Pure Life water bottle. I've been feeding with that brand water. Any one have any idea what can be...

Hi, It's my first grow in soil, I'm in week 5 now of flowering. Mainly white haired buds now and very small areas have brown/yellow color so there is more way to go. My problem is that my plant have some leaves with small brown dots and most of the leaves are burnt tips that go upwards (from...

Hello all so first timer here and would appreciate any help. I currently have two plants about 3 weeks old, the one is doing pretty good and haven't had much problems with it. The other has been getting burnt tips that started on the lower leaves eventually the lower leaf will die and work it's...

Hey what's up ayahs. I'm newly registered to RIU forums, although I have been reading a LOT of threads for quite a while. I have a reasonable amount of knowledge regarding marijuana cultivation. But there is one problem, I'm currently working with a 70 W HPS (growing 1 plant )... So my big...

I'm 3 weeks into flower everything seems to be going smooth...past couple days all of the tips have turned burnt...just the tips...what an I missing? Or not doing?

First let me say ive been watching the forums and gathering information for a while now but this is my first post. IVe been reading for weeks trying to figure out the problem, but nothing quite seemed to fit the description, I have several plants that have been showing signs some pretty severe...

Hello, I'm a new grower and am bedazzled to what is wrong with this little seedling. I haven't given any nutes and am well aware of watering when it's dry as hell. Here is a pic if anyone could tell me what is going on and a solution it would be awesome.

Hello, I'm a new grower and am bedazzled to what is wrong with this little seedling. I haven't given any nutes and am well aware of watering when it's dry as hell. Here is a pic if anyone could tell me what is going on and a solution it would be awesome.

I'm starting to get really confused about one of my plants... it's growing REALLY slowly for some reason and is struggling. Lately has been getting worse and worse by day and I don't understand why. I currently have 3 plants growing under HPS. Here's a photo: From left to right: New...