Fertilize and Spray?

[Chipsazoy]

Hi All,

I'm nearing my 4 week mark on my smart pot container garden and torn on a few things.

I have Tomatoes, Jalepeno Peppers, Zuccchini, Cucumber & Crookneck Squash.

The squash plants and cucumbers are flowering. Tomatoes are just starting to develope flower pods. And one of my pepper plants has a pepper growing.

The first few weeks i was watering frequently every day. I have now cut back to watering deeply every other day. This is my first time gardening with these plants and i thought they would be going off better than this. Maybe i'm just naive or impatient.

When to fertilize? I'm thinking of fertilizing with a compost tea next watering to see if it gives them a boost. Also, how often to fertilize?

Also noticing more pests around. Hornworms i've been picking off regularly but notice flies and small white bugs flying around my squash. Considering spraying for pests but would like suggestions on what to use that is safe for vegetable plants to be consumed.

Any suggestions would be greatly appreciated!