Day 17 seedling yellowing leaf edges

bulla said:

look thike they need to be pulled from direct light for a couple hours to be cleaned off and to completely dry off and i'd put them back they look fine , I don't start to worry about shit until my autos are 21 days old or my photos are 5-6 weeks old....I throw in seeds and let them go I think the up till the 4th set of leaves are shit their young the stem is trying the build itself ...then I think around the 5th set I really start to docu on whats up nothing is in dirt , leaves are fully adjusted to lights they are taking small amounts of nutes and boom they are off ....that's just how I do it and always have and it works great for me just leave it ….NOW IF EVERYTHING IS TURNING YELLOW WORRY BUT GREEN IS GOOD .........…...

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Swanfly2345 said:

... Do these leaves appear to be developing problems? ...

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greg nr said:

The color looks fine, but a few of those leaves look like either thrip or mite damage. Probably thrip.

Use a jewelers loop or usb mag and check very closely both top and bottom. Even if you don't spot anything, a round of spinosad wouldn't hurt.

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Swanfly2345 said:

Going to do spinosad, but something tells me it’s crumbled perlite I spilled on them.

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greg nr said:

Rub a wet paper towel over the leaf and let it dry. If it doesn't go away, it isn't dust.

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StareCase said:

The first pic shows it's the cotyledons that are going yellow. Not to worry ... those first little rounded leaves are discarded shortly after the girls grow their main nodes. Part of the process.

I wager that the next couple of serrated fans will also be chucked by the plant in a couple of weeks once the canopy fills in and they get starved for light.

Looks like you are fine ...

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