Why are my babies dying?

Some one help! Why are my sapling drooping and dying?

I did not overwater - the soil is moist. There have been some tiny gnat like creatures flying around.

How can I save the saplings?

Some one help! Why are my sapling drooping and dying?

I did not overwater - the soil is moist. There have been some tiny gnat like creatures flying around.

How can I save the saplings?