Yellow Spots, please help with identifying cause

[alchamest]

Hey all,

 

I am a pretty new grower into my second round, and all has been smooth sailing up until lately. I have found these yellow spots on some leaves to me it looks like something eating it, but not really sure.

 

FYI this is a autoflower, a buddha white dwarf,

 

when it was born it had 3 leaves not the normal 2 and has had some LST done to it.

 

Now i had burnt leaves beofre by misting and then leavingi under lights, but have not done that for some time,

 

Recently i hav been misting in lights off, During lights off, i have a intake fan running a room fan but no extract fan on.

 

I htink this girl has another 2-3-4 weeks to go. So i am almost there but dont want some critter eating all the plant.

 

Also i there are some seedlings in the same cab so if ithere is a bug infestation, i want to get rid of em asap.

 

 

If there is anythign else you want to know just ask and thanks for the assistance.

Here are some pics,

[STONEDAJ69]

Meh, wouldnt worry about it...

 

Can you try and get a better pic?

[alchamest]

Got some other pics of the leaves. Hope these give more insight,

 

It does not look to be getting worse since i noticed. however i have started killing anything that moves in the grow room.

 

Photo's are a little dodgy, all i got is a camera phone.

 

thanks for help[

Edited November 15, 2011 by alchamest

[ww1313]

Hi my plants are outdoor and 1 plants is showing the same yellow spots on the leaves as well and the other 4 dont. With all this rain were having I thought it might be over wet but then the other plants dont have it, so any help out to what it is. Thanks

[forgetiwashere]

i have seen similar things before. were they always on that leaf. like did it grow that way or was it fine and then the spots appeared.

 

sometimes plants with three leaves at the start have pigment problems. i have seen plants with one side of the plant green then the whole other side completely white. but if they appeared later then it seems to be some kind of bleaching. check the undersides of the leaves for any signs of bugs just in case. i wouldnt be to worried though

[Brimstond]

Dont want to say but that's what my plants looked like just as the spidermites started to infest the plants ..... hopefully its not them but keep a look out

 

Don't think it Is but keep an eye out for them cause they will ruin everything

Edited March 8, 2012 by Brimstond

[ww1313]

I'll give mine a spray of Pyrethrum its nateral and kills most things

[Farmer Joey]

Could just be minor nutrient burn? I've had similar yellow spots appear on singular leaves before and laying off the nutes usually helps.

 

Any particular reason you're misting during flowering? Humidity issue? Most usually stop misting in first few weeks of flowering for 912392 different reasons

 

Also take a look at Neem Oil and/or Rosemary oil for dealing with pests during flowering. Pyrethrum kills the aroma and taste and makes for a rough smoke.

[C.C.C]

i fink wit da yello spotz iz dat u could b feedn em chlornie water an dat iz bad for teh plantz dey prefr to have lyk stale water sit overnight coz positive ions reacts in the soluble and draws out da chloreine an den da plantz take it better coz den it levels out yea

 

dont worry ull get da hang of it

 

peace

[Kush']

I wouldn't turn the extraction fan off during lights off unless there is some reason why you have to,run intake and extraction 24/7,the air outside never stops exchanging,so it makes sense to replicate that indoors imo,cheers

 

kk