Developing plant germplasm that contains genetic resistance to insect pests is a valuable component of integrated pest management programs. In the last several decades, numerous attempts have been made identify sources Colorado potato beetle Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae). This review focuses on compiling information regarding general L. biology, ecology, and focusing...

Zusammenfassung Zu Beginn einer Massenvermehrung des Kartoffelkäfers sind in der Regel nur eine begrenzte Anzahl Kartoffelpflanzen im Feld befallen (Befallsherde). Bei schaderregerbezogenen gezielten Insektizidspritzung würden Abhängigkeit von Bekämpfungsschwellen diese Befallsherde behandelt, was zu erheblichen Reduzierung Insektizideinsatzes führen könnte. Voraussetzung ist ein lückenloses Mo...

Potato, Solanum tuberosum L., is one of the world’s principal food crops. Important potato insect pests include Colorado potato beetle, Leptinotarsa decemlineata Say, potato tuberworm, Phthorimaea operculella (Zeller), and aphids, especially as they transmit potato leafroll virus and potato virus Y. Management of insect pests of potato relies almost entirely on chemical insecticides. Potato bre...

Five weekly applications of Beauveria bassiana (Balsamo) Vuillemin, a genetically engineered isolate of Bacillus thuringiensis Berliner (Raven), and aldicarb (Temik) were compared for control of Colorado potato beetle, Leptinotarsa decemlineata (Say) in an irrigated desert cropping system. B. thuringiensis was applied using low and high label rates (1.17 and 7.0 l ha−1). B. bassiana was applied...

Pristionchus pacificus has been developed as a model system in evolutionary developmental biology, evolutionary ecology, and population genetics. This species has a well-known ecological association with scarab beetles. Generally, Pristionchus nematodes have a necromenic association with their beetle hosts. Arrested dauer larvae invade the insect and wait for the host's death to resume developm...

1. For species of insects that deposit their eggs on foliage, as Leptinotarsa decemlineata, Crioceris asparagi, and Anasa tristis, the rates of metabolism as measured by the CO(2) output or the oxygen intake indicate, during embryonic development, a short formative period, followed by a very active extended growth. Those species that deposit their eggs in the soil, as Cotinis nitida and Popilli...