Bifen IT is not labeled to be used on anything edible so would not be recommended. For vegetable garends we would recommend using the Fertilome Triple Action. It is an insecticide, miticide and fungicide in one. For systemic treatment of aphids, you could also use the Fruit Tree & Vegetable Systemic Soil Drench.
Bifen IT is not labeled for lice. We do carry products that can be used for lice control. Please take a few moments to review our article on How to Get Rid of Head Lice for more helpful information.