Is this cucumber seed infected or is this normal...

[Ebejer5]

My last cucumber seedling I didn't loose to damping off. The cotyledon leaves are yellowing and have developed brown spots. Is this normal? I thought the plant uses the cotyledon leaves for nutrition so they eventually dry up. If I am wrong and this seedling is sick, I want to get rid of it not to infect the rest of my growing plants. Thoughts?

 

[Chuck]

My last cucumber seedling I didn't loose to damping off. The cotyledon leaves are yellowing and have developed brown spots. Is this normal? I thought the plant uses the cotyledon leaves for nutrition so they eventually dry up. If I am wrong and this seedling is sick, I want to get rid of it not to infect the rest of my growing plants. Thoughts?

It looks as if at some prior time the plant stayed too wet for awhile. The new growth looks good so I wouldn't worry