herbs

Veggies and herbs:

      CONTAINERS

I'd like to plant vegetables in plastic containers. What type of soil should I use?

      PESTS, DISEASES

I have some gray, powdery substance in my vegetable garden (on the foliage and stems of my zucchini, squash, and pumpkins). What is this, is it harmful and what can I do about it?

What should I do about rust on my established garlic?

What can I do about garlic white rot?