Hummingbirds migrate north in the spring, and their arrival is eagerly anticipated by some gardeners. Certain plants, like cuphea, geraniums, impatiens, lantana, nicotiana, petunias, salvias, and ...

The researchers also tested their new method by applying the more-effective siRNA and dsRNA directly to a model plant, Nicotiana benthamiana, infected with CMV. They wrote in their paper that ...