I think you have a host of things going on/wrong.
First off, for a month old plant, it looks very stunted. My guess is your light source is very inadequate. What are you using?
Secondly, idk what kind of soil your using, but all the growth of other plants is not good. As mentioned by Dark, the "weeds" will steal nutrients from your baby, and eventually could cause some issues. I would suggest investing a little bit in some quality soil if you can afford it. I use Fox Farm Ocean Floor, and I pretty much swear by it. It's all organic, and it should feed your youngsters for a few weeks before needing any additional nutes. It's light and fluffy and does not retain too much water. It is a little more pricey than other brands, but I think it's worth the extra. The organic mix of Miracle Grow you can get @ Wal Mart is not a bad second choice.
Last but not least, your bug problem is probably the worst and most looming problem you have. You need to identify what they are, and get rid of them. With worms/larva in the soil, it won't be long till your plant is in big trouble.