First time growing veggies from seeds indoors. Cabbage seedlings dying.


Kat

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Hi! I have planted veg seed indoors under a grow light for the first time. All seem to be doing fairly well, though my Chinese Cabbage seedlings keep dying. They germinate very fast (4-5 days) and do well until the first true leaves start to appear. Then the leaves begin to curl and the seedlings die. I thought the first time that I might be overwatering, so I tried again allowing the soil to dry out more between waterings. But the with the same result. And this time there are also little patches on the leaves (first photo.) Any tips would be greatly appreciated!
Second question: my gherkin plant (second photo) has started to get slightly yellowed crispy edges to the leaves. Am I under-watering do you think?
 

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Logan

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Hello @Kat and welcome to the forums

When you water is it getting on the leaves?
It would affect the seedlings more than the older plant.
 
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Welcome @Kat :)
At first I thought that looked like powdery mildew, but I think it is actually spider mite you have a problem with.
 

Kat

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Hello @Kat and welcome to the forums

When you water is it getting on the leaves?
It would affect the seedlings more than the older plant.
Hello @Kat and welcome to the forums

When you water is it getting on the leaves?
It would affect the seedlings more than the older plant.
Hi Logan, thanks for your reply! The seedlings are in quite a deep pot so I’ve been watering with a spray while they’re tiny, then switching to just pouring water around the seedlings.
 

Kat

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Welcome @Kat :)
At first I thought that looked like powdery mildew, but I think it is actually spider mite you have a problem with.
Thanks for your reply! Do you think I should re-plant, maybe in a small pot with new compost?
 
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I think you should use neem oil spray or some other remedy for spider mite - they won`t leave on their own and can spread through your other crops.
 
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