The researchers found that dipping seeds in jasmonic acid would kickstart a plant's natural defenses against pests. Jasmonic acid, which is produced by plant leaves when attacked by insects, is known to help defend plants when it's sprayed on crops. However, spraying the acid tends to reduce plant growth, while dipping seeds in the acid doesn't create that side effect, the researchers said.
Early tests showed an 80 percent reduction in red spider mite attacks on tomato plants, 70 percent decrease in damage to sweet peppers by aphids, and 38 percent reduction in caterpillar attacks on maize. Becker then conducted large-scale trials in the U.S. that showed similar promise.The technology is drawing attention in Europe in particular because it does not involve genetic modification.
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