brown spots on leaf???

[mr west]

Hi I was wondering if anyone could help me. Im 4 1/2 weeks into flowering. I got 4 plants in my wardrobe under a 400hps, 3 of the 4 are bagseed and the one thats left is apparently white widow, i got as clone off my mate who got seeds off his mate lol. The ww seems to be more of a sativa type compared to the bagseed ones that look indica type. Its just on the ww that i have smal brown spots on the leafs
can anyone help identify this???

 

[johnwashburnx30]

im not a professional or anything, but the first thing i would ask is, how do you feed your plants? because often when the plants get older, they have a harder time getting nutrients and stuff from the roots. so you have to feed them through the leaves, by spraying the plant with nutrient enriched water. although be careful dont do it under bright lights you can burn the plant badly, i would do it when the lights are off, but like i said, im not an experienced grower, i just researched it is all. but i found on many sites that teach you to grow, one thing they always say is the thing about the roots and how the leaves will get brown spots and then its time to feed them directly on the plant. hope that helps.

 

[mr west]

cheers John that sounds like good advice, I am jus feeding them in the water i give as i read its not a good idea to directly feed the buds. Ill mix up a weak solution tonight and carefully spray the leafs. Thanks once again

 

[GrimReefa]

im not a professional or anything, but the first thing i would ask is, how do you feed your plants? because often when the plants get older, they have a harder time getting nutrients and stuff from the roots. so you have to feed them through the leaves, by spraying the plant with nutrient enriched water. although be careful dont do it under bright lights you can burn the plant badly, i would do it when the lights are off, but like i said, im not an experienced grower, i just researched it is all. but i found on many sites that teach you to grow, one thing they always say is the thing about the roots and how the leaves will get brown spots and then its time to feed them directly on the plant. hope that helps.

i would not advise nutrient rich, u shud foilar feed at 1/8 strength, or less

 

[GrimReefa]

jus manage ur ph and feed thru roots, spray the plants with plain water ( lights off), do not spray nutrients directly onto ur plants

 

[GrimReefa]

also brown spots can be number of things, nute burn, mites, temperature, water on leaf when light is on, got picS?

 

[t dub c]

Little rust colored spots? do you have any pics?.^^^ just like grim said, could be lots of differnt things.

 

[mr west]

I would post pics if i knew how to do it with out it showing up my photobuket account. This is my fist grow under lights in a small space and am just wingng it for now as funds to buy ph meters and the like are a bit low. Ill see if i can borrow my neighbors ph meter laters. The temp in my box was getting high, but fink ive sorted it with a fan outside the box blowing in through the open door lol. How would i resolve a nute lock situation? Im growing in soil ( just potting compost)

 

[mr west]

I dont think its mites as its the only one affected like this, the other 3 are fine lush and green and wouldnt mites go everywhere in the box?

 

[t dub c]

I dont think its mites as its the only one affected like this, the other 3 are fine lush and green and wouldnt mites go everywhere in the box?

Hmmm thats hard to say, beacause I had mites on one stain of mine and had another strain I work with in the same room, I swear touching each other and the one strain didnt get touched, not 1 mite. sooo...........

 

[mr west]

How would i resolve a nute lock situation? Im growing in soil ( just potting compost)

Im using a genral purpose feed from focus diy lol maybe every 3rd day

 

[mr west]

Here is a pic of brown spots, as u can see its not ever so bad is it?

 

[johnwashburnx30]

yeah it could be a number of things, ive only grown a few times, for my own use. oh and also when i said nutrient enriched water, i should have used better wording, i just meant water with nutrients in it. not too rich i woudlnt think. and this video i just watched now they dont feed the plant on the leaves, but i know from growing food plants, that people often feed the plants on the leaves. so im not sure. im sure if the light was off it would be fine. as long as its not too much. but that is all i know. when my parents used to grow tomatoes, they would feed miracle grow with water into the leaves.

 

[mr west]

Well Ive flushed my girls with lots of water and they seem to like the big drinks, my buds have increased in size quite a bit and i cut the bad leafes off ( was only one or two and some of the yellow leafes are turning green again woo hoo. I shall try a little food after the weekend.