How can we treat for cutworms without chemicals?
First and foremost, your soil should be in optimal condition before planting...that may mean years of amending...compost, fertilizer, possibly sand if your soil is on the clay-ish side. If all else fails and you are desperate to rid your garden of the pest, the most successful treatment is to use a protective barrier...tuna can, cat food can, styrofoam cup (tops and bottoms removed),...placed over the seedling just as it emerges from the soil. There are probably various chemical applications which would work...I don't use those. Also, diatomaceous earth is a great, great thing to keep on hand for almost any insects. You can find it at almost any garden-supply store...read instructions before purchase. You don't need food-grade, although you are growing food. And some products are ineffective once contacted with water.