is this really heat stress?

bandit08

bandit08

Well-Known Member
HeatStress1.jpg is this really heat stress? found the picture here,on another thread about deficiencies. looks like a calcium deficiency to me?

can someone who knows,confirm what it is please?
 
S

SSHZ

Well-Known Member
No, it doesn't look like it. If it was, the leaves would be folded upward. Looks like mites suckin juices. Look underneath of leaves for eggs/mites. If no eggs, add 10 ml per gallon of cal/mag for a couple of waterings.
 
maps84

maps84

Well-Known Member
I agree with the mites.. look for pest make if it was calcium the damage wouldn't be on the leaves veins.
 
smoke and coke

smoke and coke

Well-Known Member
SSHZ said:
No, it doesn't look like it. If it was, the leaves would be folded upward. Looks like mites suckin juices. Look underneath of leaves for eggs/mites. If no eggs, add 10 ml per gallon of cal/mag fora couple of waterings.
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maps84 said:
I agree with the mites.. look for pest make if it was calcium the damage wouldn't be on the leaves veins.
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its not his pic. its a pic from one of the deficiency charts lol
 
S

SSHZ

Well-Known Member
So it's a "fake" picture, huh? That enclosed picture is mite damage, not a deficiency. Get a "fake" magnifier and check under the problem leaves for "fake" mites and eggs.
 
bandit08

bandit08

Well-Known Member
SSHZ said:
So it's a "fake" picture, huh? That enclosed picture is mite damage, not a deficiency. Get a "fake" magnifier and check under the problem leaves for "fake" mites and eggs.
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no its not a fake picture at all mate, its a picture i found on a deficiency guide on (RIU) here.
reason im asking about it is because it looks very similar to the problem im having with my own plant,but i dont believe its heat stress.

oh n by the way, ive already looked through my ''fake'' magnifying glass at my ''fake'' leaves, and i dont have any ''fake'' eggs or ''fake'' mites of any kind. lol
 
tiltswitch

tiltswitch

Well-Known Member
its definitely not mites.....spider mite damage are tiny goldenish spots....prob a cal/mag...def////id go with mag if u usin tapwater...as if u dont evap the chlorine thisl cause a mag def...and tap water usually has cal in anyway
 
maps84

maps84

Well-Known Member
tiltswitch said:
its definitely not mites.....spider mite damage are tiny goldenish spots....prob a cal/mag...def////id go with mag if u usin tapwater...as if u dont evap the chlorine thisl cause a mag def...and tap water usually has cal in anyway
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Ca defiiency starts with rusty leave tips, Mg doesn't cause spotting at all and as this two elements are very related they almost always show its deficiencies together. That's basic theory bro. IMHO he has to keep looking for leaves miners, and it wouldn't hurt to supplement calmag either, maybe hopefully you turn out to be right.
 
vilify

vilify

Well-Known Member
I would say, Its a def of sorts. Cant exactly remember which. Think Calcium like you said. I got it on my G13Haze from non-ph water.

Do you correctly ph your water? Try feeding cal/mag. No longer have this issue in my garden
 
nick17gar

nick17gar

Well-Known Member
heat will cause the leaf to bend upwards, like a taco.

thats a micro nute deficiency. cal/mag likely, maybe zinc (if i recall correctly)
 
nick17gar

nick17gar

Well-Known Member
bandit08 said:
what about leaf spot fungus? can anyone shed any light on this? please...
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leaf fungus... have you ever seen wilted lettuce in the fridge? same theory, dark moist areas, it falls apart. its like the leaf turned into a booger. that pic is not it. its also kinda rare to get leaf fungus/mold/rot. Powdery mildew happens on leaves, but thats like a white powder... like sprinkling baby powder on the leaves.

fungus/rot/mold usually occur on the base of the plant, lower stem, lower leaves, (less light ---> less heat ---> more humidity ---> better for mold).
 
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