Top leaf tear, but where's the pest?

[Fresh Start]

I had this happen a few weeks back, and nothing more has really developed after these initial tears. I looked and looked for pests, none really found. I was thinking it could e slight heat stress. But I cool it constantly. Here what they look like. Church strain clone vegging at 2 weeks to be a mum.

http://icmag.com/ic/album.php?albumid=1869&pictureid=19200

 

[Fresh Start]

More pics

More pics

http://icmag.com/ic/album.php?albumid=1608&pictureid=26216

http://icmag.com/ic/album.php?albumid=1608&pictureid=26217

http://icmag.com/ic/album.php?albumid=1608&pictureid=26218

Not sure what the yellowing is. But last time this happened, I foliage fed some Epsom salts to cure it. I heard that with Epsom salts, a little goes a long way but it may need it again. I have no mag in my soil-less blend.

 

[stihgnobevoli]

i get that too on some of my leaves. its prolly just spots where you spilled nutes on it. i wouldnt worry about it.

 

[Review]

Yes,how say stihgnobevoli, dont worry about it.

 

[Fresh Start]

YEah..but

YEah..but

Its happening again to my young leafs that are at the top of the plant. Looks like heat stress.

 

[FreezerBoy]

Sure you're not overfeeding? Those things are almost black.

 

[Misturemike]

the very first pic is nothing...not a pest. probably rough handling, or a mutant leaf.

next three pics looks like the beginning of nute burn

 

[Fresh Start]

The hue in those pictures are a little off. the camera I'm working with is old. Yeah they are a little dark, most leaves are not that color. I don't think I'm overfeeding.. I'm almost using a quarter strength guano tea. I'm skipping the next three feedings anyways to flush nitrogen out for the cloning process. Mishandling could be one of my mistakes.. I get my face all up in those leaves and smell smell smell for minutes. lol Here is my nute tea mix cut down to 1/4 tsp for 2 cups of water. ( 1 plant only)

Veg mix-
1/3 cup Peruvian Seabird Guano (PSG)
1/3 cup High N Bat Guano (Mexican)
1/3 cup Earth Worm Castings (EWC)
5 tsp. Maxicrop 1-0-4 powdered kelp extract
(That makes the "dry mix". You can make all you want and save it to use later.)
Mix with water @ 1 cup of dry mix into 5 gallons of water to make the tea.
To that 5 gallons of tea add:
5 tbs. Liquid Karma
5 tbs. Black Strap Molasses
Use it to water with every 3rd watering.

 

[Misturemike]

do you let the mix aerate or sit for a few day?

 

[DiscoBiscuit]

I don't know what the tear is. I get that shit and it drives me nuts. The yellowing looks like your K is a smidgen high. I had too little K and the leaf margins burned where yours are yellowing.

 

[stihgnobevoli]

whats your humidity? could be dryness causing it. i know during lights on my humidity readings say -- which means 0 i think.

 

[Fresh Start]

Misturemike: Let the tea bubble for 24 hours, or until foamy. I could let it go further.

I pee on flowers: I don't know what my humidity is. Never got a meter, I imagine 0. I leave the fans on at all times for the fuck of it. helped the stem get strong.