Rusty brown spots on older leaves,need help

**madmax** · 14-08-10, 04:47 PM

Hi guys this is my first thread on here and i need some help please. Im on my 5th week of flowering on my first grow and noticed in week 3 that some little rusty coloured spots developing on the fan leaves of a plant that i burned the main growing tip cause of being to close to the light, i put it down to this but the leaves yellowed and died and by the following week had spread to the other plants. The first plant that had it was a bit more pale looking than the rest and i thought maybe a deficency of some description.I have looked at all the photos i could of various problems that people have had and cant find anything that matches my problem.Last week i added some epsom salts at 1/2 a teaspoon to p/l and watered them with 1 litre each then the other day i thought maybe a nute lockout and flushed them with 4 x the pot volume with water.Hopefully these photo's will show some of the experienced growers out there where im growing wrong.:help:
I am growing in soil in 11 Litre pots in a 1M square area with a 400w hps,i have a decent extraction setup keeping the temps around 23 celcius and humidity between 40 and 50%.I use biobizz products around 1ml/L of biogrow,3 ml/L of bloom,1 ml/L of topmax and 1 ml/L of bio heaven.The Ph of the water is around 6.8 but i dont know the soil Ph.Thats about all the information that i can think of to provide so any help to a noob first time grow would be much appreciated many thanks.

**up2nogood** · 14-08-10, 04:51 PM

you.re not doing anything wrong as far as I can see.leaves at this stage will die off as its in the middle of flower so don't worry about it.

**madmax** · 14-08-10, 05:55 PM

Thanks mate as it is my first time grow i guess im looking to deep into things,should i continue with the nute schedule as usual then, i must say they are looking nice apart from the one which looks a bit weird as it has very thin leaves will post some better pics later thanks again

**up2nogood** · 14-08-10, 06:01 PM

Originally Posted by madmax

Thanks mate as it is my first time grow i guess im looking to deep into things,should i continue with the nute schedule as usual then, i must say they are looking nice apart from the one which looks a bit weird as it has very thin leaves will post some better pics later thanks again

yes carry on with nutes until last 2 weeks then thats the time when you should just give them water to flush out any salts and toxins..