Can anyone identify this seedling problem?

Flowerpower420 · Aug 14, 2022

Hi folks my seedling girls are now on day 20 from sprout and im seeing some light coloured mottled markings on the leaves of 1 plant. Ive introduced calmag at 0.5ml per 5L of feed as they are still really young and the feed E.C is at 0.7.

This particular plant is also stunted compared to the others too. And help would be greatly appreciated foks

Peace out

m8ty · Aug 14, 2022

Looks like thrips do you see small bugs on the plant? Tap the pot and check the drain holes for critters

Flowerpower420 · Aug 14, 2022

Ah man! Theres nothing to see visually on the plant itself on the top or underneath the leaves. Also ive looked on the top of the pots and i cant see anything crawling around ontop of the coco. When i googled this it looked like thrips too but i cant see any evidence of them...

Buzzzz · Aug 14, 2022

Flowerpower420 said:
Ah man! Theres nothing to see visually on the plant itself on the top or underneath the leaves. Also ive looked on the top of the pots and i cant see anything crawling around ontop of the coco. When i googled this it looked like thrips too but i cant see any evidence of them...

Looks like you're running too wet too,unless its freshly watered

Flowerpower420 · Aug 14, 2022

Buzzzz said:
Looks like you're running too wet too,unless its freshly watered

Yeah mate ive literally just watered and then took pics lol.

Maybe i should have done it the opposite way around

Buzzzz · Aug 14, 2022

Flowerpower420 said:
Yeah mate ive literally just watered and then took pics lol.

Maybe i should have done it the opposite way around

Thrips and mites can look like the same damage,use a magnifying glass to look at the undersides and soil surface and don't let your seedlings near other plants. Thrips are also bigger and easier to see than mites

Flowerpower420 · Aug 14, 2022

Heres some pics of the underside of the affected leaves, not too clear as my camera lense is broken, sorry for the poor quality.

Flowerpower420 · Aug 14, 2022

Could light intensity or heat cause this type of issues? It has been very hard to control the heat as we are currently in the middle of a heatwave and ambient outside temperatures are about 26-27°c and its a little warmer with lights on, it cools down to around 24°c at night. Humidity is around 65%

mysticepipedon · Aug 14, 2022

It doesn't look like a pest to me.

Buzzzz · Aug 14, 2022

Flowerpower420 said:
Could light intensity or heat cause this type of issues? It has been very hard to control the heat as we are currently in the middle of a heatwave and ambient outside temperatures are about 26-27°c and its a little warmer with lights on, it cools down to around 24°c at night. Humidity is around 65%

yeah is doesn't look like bugs under the leaves,26-27 is a nice temp for growing if that's all it is around the plant that's around 80 f.

Flowerpower420 · Aug 14, 2022

Buzzzz said:
yeah is doesn't look like bugs under the leaves,26-27 is a nice temp for growing if that's all it is around the plant that's around 80 f.

Yeah mate the rest of the girls seem totally fine, maybe a little light green and possibly needling a little more nitrogen but i dont want to over feed as they are still young. This is the only plant that has this issue. Tbh these markings have been there since the first true leaves appeared and is continuing as she grows,

I did a calmag foliar spray 4 days ago and to no avail,

Im unsure if it is an issue that can be rectified or if its sort of a genetic thing. All other plants seem to be doing great apart from this one. All the seedings are getting the same treatment such as fertigation quantity and strength, light, humidity ect. And no sign of pests. Im a little stumped tbh.

Buzzzz · Aug 14, 2022

I had a batch of seeds and every one had a white bleach spot,3rd set of leaves it went away.

Buzzzz · Aug 14, 2022

Buzzzz said:
I had a batch of seeds and every one had a white bleach spot,3rd set of leaves it went away.

the 2 that don't were from a diff batch

Edinburgh · Aug 14, 2022

Check you rh, you don't want wide swings.

Flowerpower420 · Aug 14, 2022

Edinburgh said:
Check you rh, you don't want wide swings.

RH is on a inkbird controller set at 65% with a + or - of 3% so when the extraction pulls out too much humidity it kicks back in at 62% and kicks off at 68%.

It seems to be burning through the water in the Humidifier as i think the extraction is sucking it out too quickly but if i turn the fan down my temps seem to soar from 26°c to 30°c and above.

Aqua Man · Aug 14, 2022

You cant use a humidifier in the tent , its just not feasible for the reason you stated.

Like @Buzzzz said… seedlings are temperamental. Think of them like 2 yr old temper tantrum’s. They will grow out if it in a week or 2. Chasing ghosts will lead to creating problems.

Turn the humidifier off or humidify the room your tent is in. If you have a fan blowing at them point it away from them for now because they are to young for that.

Flowerpower420 · Aug 14, 2022

Aqua Man said:
You cant use a humidifier in the tent , its just not feasible for the reason you stated.

Like @Buzzzz said… seedlings are temperamental. Think of them like 2 yr old temper tantrum’s. They will grow out if it in a week or 2. Chasing ghosts will lead to creating problems.

Turn the humidifier off or humidify the room your tent is in. If you have a fan blowing at them point it away from them for now because they are to young for that.

Awesome info Aqua man, yeah think Humidifing the room is my only option. Cheers mate so you think i should hold off for now and dont change anything and see if it sorts itself out as they age? Cheers man

Aqua Man · Aug 14, 2022

Flowerpower420 said:
Awesome info Aqua man, yeah think Humidifing the room is my only option. Cheers mate so you think i should hold off for now and dont change anything and see if it sorts itself out as they age? Cheers man

Yup other than the humidifier and making sure no farns are pointed directly at them

Buzzzz · Aug 14, 2022

Buzzzz said:
the 2 that don't were from a diff batch

This is them now, not sure how old but probably a cple months or more so you just never know how things will change,it the best part about growing for me,it keeps things interesting.

Mr.GreenthumbOG · Aug 14, 2022

Buzzzz said:
Looks like you're running too wet too,unless its freshly watered

I would say this advise is correct.
Looks like overwatering symptoms, or damage from foliar feed.
that’s pretty high EC for plants that age as well.

Can anyone identify this seedling problem?

Can anyone identify this seedling problem?

Flowerpower420

m8ty

Flowerpower420

Buzzzz

Flowerpower420

Buzzzz

Flowerpower420

Flowerpower420

mysticepipedon

Buzzzz

Flowerpower420

Buzzzz

Attachments

Buzzzz

Edinburgh

Flowerpower420

Aqua Man

Flowerpower420

Aqua Man

Buzzzz

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Mr.GreenthumbOG

Grow for life🌱

Can anyone identify this seedling problem?

Can anyone identify this seedling problem?

Flowerpower420

m8ty

Flowerpower420

Buzzzz

Flowerpower420

Buzzzz

Flowerpower420

Flowerpower420

mysticepipedon

Buzzzz

Flowerpower420

Buzzzz

Attachments

Buzzzz

Edinburgh

Flowerpower420

Aqua Man

Flowerpower420

Aqua Man

Buzzzz

Attachments

Mr.GreenthumbOG

Grow for life🌱

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