Aphids
The summer host plants are either herbaceous or woody, while the winter host plants are hardy, woody perennials. Aphids that do not alternate between host [...] by the following characteristics: Size and shape: Aphids are small, soft-bodied insects that are usually less than 6 mm in length. They have a pear-shaped [...] in the crop. There are two types of aphid species: those that change to other host plants in the winter, and those species that do not. Species that alternate