Scales are limpet-like insects that feed by sucking sap from a wide range of plants, including houseplants, greenhouse plants and many fruit and ornamental plants grown outdoors. Scale insects weaken READ MORE http://apps.rhs.org.uk/advicesearch/profile.aspx...
Bruce A. Barrett
Department of Entomology
Some of the most commonly encountered arthropod pests found on plants are those that feed on plant juices, i.e. sap-sucking pests. These pests all have need READ MORE http://extension.missouri.edu/p/g7274
Scale insects can be serious pests on trees, shrubs, and other perennials. The impact of infestations depends on the scale species, the plant species and cultivar, environmental factors, and natural e READ MORE http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7408.html