CURE ALL OR SNAKE OIL?
Many Uses for Marigold
Gardeners who visit here frequently comment, upon seeing marigold plants growing in and at the foot of my vegetable beds, that I must have planted them for pest control. After all, marigolds are supposed to be one of the workhorses of biological pest control. Plant them and plant pests will be killed or — if they are lucky — merely repelled.
It’s an appealing concept: sunny plants that thwart pestilence and blight even as they brighten the garden with their blossoms. Marigolds greatest claim to pest control fame is their effect on nematodes, an effect documented in numerous scientific studies. Read more
