Assessment ofPristhesancus plagipennis(Walker) (Hemiptera: Reduviidae) as an augmented biological control in cotton and soybean crops

Autor: Derek Maelzer, Paul R Grundy
Rok vydání: 2000
Předmět:
Zdroj: Australian Journal of Entomology. 39:305-309
ISSN: 1326-6756
DOI: 10.1046/j.1440-6055.2000.00182.x
Popis: Third-instar nymphs of the Australian assassin bug, Pristhesancus plagipennis (Walker) were released into cotton and soybean plots at a number of release densities to test their biological control potential. The number of Helicoverpa spp. larvae in cotton was reduced with the release of three or more P. plagipennis nymphs per m crop row. In the soybeans, populations of green mirids, Creontiades dilutus (Stal), and looper caterpillars, Chrysodeixis spp., were significantly reduced when P. plagipennis were released at 2 nymphs per m crop row. The potential yield of cotton (but not soybean) was increased in the plots to which P. plagipennis were added. The data suggest that P. plagipennis has the capacity to be an effective biological control agent of soybean and cotton insect pests when released inundatively
Databáze: OpenAIRE