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Do marigolds repel insects?

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Originally published July 2, 2010 at 7:00 pm Updated July 2, 2010 at 9:01 pm Marigolds are seen in a garden in New Paltz, N.Y. Marigolds greatest claim to pest control fame is their effect on nematodes. read more

Although marigolds are easy to grow in sunny locations, they can fall victim to gray mold, several types of leaf spot, powdery mildew, damping off and root rot. Nasturtiums. Nasturtiums release an airborne chemical that repels insects. (Photo: Christian Guthier/flickr) Repel whiteflies, squash bugs, aphids, many beetles and cabbage loopers. read more

Ø Annual Marigolds can be used anywhere to deter Mexican bean beetles, squash bugs, thrips, tomato hornworms, and whiteflies. They are also known to repel harmful root knot nematodes (soil dwelling microscopic white worms) that attack tomatoes, potatoes, roses, and strawberries. read more

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