Most discussions about compost and pests are concerned with keeping pests out of compost bins. Lots of insects and other pests like to live in a compost bin and I’ll discuss this issue in a future post. But does compost, when added to the garden, reduce the number of pests affecting plants? It is a claimed benefit of compost.
Companion planting is a standard recommendation for growing vegetables. One of the most commonly recommended plants for this is the marigold, which is supposed to be good for preventing various pests from eating the vegetables. I will limit the discussion in this post to using marigolds to reduce or eliminate nematodes in the garden.
