Pests can destroy the yield and kill plants. Most plant-eating pests can damage different crops but there are some plant feeders that harm only some plants. Wide spread pests are greenhouse whitefly, cotton whitefly, European thrips and tobacco thrips, peach aphid, cotton aphid, tobacco and potato aphids; spider mites, leafminers, caterpillars and others. Tuta absoluta is the most dangerous pest for tomato. It can kill almost all yield unless you take steps. Frankliniella occidentalis has resistance to chemicals. This pest can damage rosebuds. Spider mite is common for cucumber.
Pest control includes: IPM (entomophages), chemicals (insecticides, acaricides, nematocides) and agrarian measures (quarantine, traps, sanitary measures).