Leaves curling

[bobbyp]

This is a 8 week od VBS 2 weeks into flower, organic soil, 7.3 PH , fert with AD Mother Earth Super Tea Bloom. Last fert added Cal Mag Plus 3/4 strength leaves are starting to curl. Have 7 plants same age and this is only happening to one

 

[wikidcalibudgrl]

looks like a bit of heat damage/stress on the right upper leaf in the photo,,, your prolly having some heat issues/stress ( looks like your light is right above this plant,, is that right?) ,, try movin your light back just a bit,,, should fix that up,,, then figure out a way to reduce the possablity of that happening again (more/ add fans or ventalation units)

Good luck on the harvest hun :wink:

 

[bobbyp]

thanks gal , I will take your advice and how far away from a 400 watt light should the plant be.

 

[wikidcalibudgrl]

well hard to say,, hows your ventilation? I'd say a 8-12" at LEAST depending on how good you vents are,,,,,, good way to tell, put your hand between your plant an light,, if it gets too hot for your hand in a few seconds, it too close,,
or try an easy/temp fix, try puttin a fan blowing lightly across the top of the plants just under the level of the light, will keep the radient heat from it from being too hot for the girls :wink:

 

[bobbyp]

they are 12" from plants in a spare bedroom set up on a portable table, I have put fans on both lights blowing over the tops. As soon as I get my ballast back I will air cool both lights thru the ceiling. Thanks for the help , check out my grow in the grow diaries First IC grow.

 

[Sleepy]

you need to lower your pH into the 6-6.5 range. it is way too high. a nice flush is in order...test the runoff.

yeah...12-18 inches from the tops is good.

looks like early 'claw' from here...flush and they will look better in about a week.

 

[wikidcalibudgrl]

hey sleepy I aint grown is soil in sooo long,, didn't even think of the pH bein too high,,,
the light stress tho... do ya see the heat damage on the upper leaf there? on the right? and the light was right above this one plant( the only one being affected)

 

[Sleepy]

what happened...did you get all 'wrinkly' being in the hydro for so long!

hehehe

yeah, it couldn't hurt moving it away from the bulb.

just remember that your effective light is cut by 1/4 for every foot you move after the first 12". or something like that...

good to see wikid posting!!

 

[Verite]

Yep I think they will perk right up as sleepy suggested by lowering your ph a point.

 

[bobbyp]

thank you all , my friends

 

[fooldall]

Classic signs of heat stress.