Burnt Tips and yellow dots, HELP!

[FreeTHC]

It's my first time growing, have 4 plants that are all different strains and they're in the 6th week of flowering. On one plant, only the very tips are burnt on the new leaves and fan leaves. Then on 3 of the plants, yellow dots and leaf decay is happening, where the leaf finally gets totally burnt. I enclosed pics, hopefully some of you more experienced growers can throw me some tips.

(I water regularly, and give liquid flowering food by direction of bottle, 4 plants are under 1, 150 watt HPS)

 

[smokybear]

Kind of looks like nute burn to me. What type of nutes are you using? Just my thoughts. I wish you the best of luck with them. Take care and be safe.

 

[trillions of atoms]

nutrient burn usually starts at the leaf edges and travels inward to the leafs central vein. id say looks like a PH issue. whats the Ph looking like? soil? fert? age of plants? have you flushed at all?

need more info bro....

 

[FreeTHC]

Im just using a store bought, ready to pour suppliment with nitrogen, phosphate and potash. I stopped giving it to the plants, and flushed with water. The plants look like they might be pulling through...the buds are forming trichs faster than ever, but the leaves still have some yellowing.

 

[snuggles]

Im just using a store bought, ready to pour suppliment with nitrogen, phosphate and potash. I stopped giving it to the plants, and flushed with water. The plants look like they might be pulling through...the buds are forming trichs faster than ever, but the leaves still have some yellowing.

The yellowing could be from the flush, cleans everything out. or it could be normal, how far into flower are you?

 

[lyfr]

i think you should look under your leaves with a mag. glass or scope...you might find critters, tiny yello dots are usually where a tiny bug(mites,thrips) have been * extracting juices from your girl. not sure, but worth checking! my tips always burn a little in flower.