posted 6 years ago
Also diversity helps a lot. If you grow many different things, it protects you in a few ways, and makes it easier to go forward without poisons or conventional chemicals.
1) In a diverse planted area, pests don't find a monocrop to multiply on. Monocrops are much more vulnerable to pest infestations.
2) If you are growing many different things, you can accept damage to one crop this year, because next year that crop might do well, and a different crop may have trouble. But you'll always have plenty of things to harvest. Leaving the pests on the damaged plant seems like it could cause MORE of that pest the next year, and in some cases it does, but in many cases the ecosystem seems to balance out. Maybe predators rise to eat that pest, and the next year that particular pest drops back to its normal low levels. Pesticides (including some natural or organic ones) risk killing the predators along with the pests, so the ecosystem can't deal with it. In my experience, many years I have seen a new and unique pest causing a problem on just one or two types of plants, but the next year it recedes to the background.
3) I think I remember from your previous posts, that you discovered that the monocropped maize was actually costing your family money to produce. It was being sold for less than the cost of production. Instead of growing a lot of maize for sale, a diverse variety of crops could replace more of your family's food purchases, not only cheaper but healthier because you know how you produced it. You might even be able to grow some items that someone in your family loves but finds too expensive to buy often.
Works at a residential alternative high school in the Himalayas SECMOL.org . "Back home" is Cape Cod, E Coast USA.