Fungus on Tomatoes

Question

What can I put in the soil to prevent fungus on tomatoes?

Answer 1

I like neem oil as a fungicide because it doubles as a pesticide and when you use it in the soil, it is taken up into the plants and helps to offer some protection from pests. This article will explain more about it:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm