The document is a companion planting chart that lists plants and herbs that can be used as natural repellents or companions for various insects and garden pests. It notes that mint, catmint, tansy, garlic, and pennyroyal can repel ants. Nasturtiums, tomato leaves, basil, spearmint, onions, stinging nettle, and garlic can deter aphids. Rosemary, mint, dill, sage, hyssop, garlic, oregano, spearmint, tansy, thyme, chamomile can help with cabbage butterflies. Garlic, tomato leaves, and pepper leaves on the plant can combat caterpillars.