Population ecology of Heteronyx piceus (Coleoptera: Scarabaeidae) in a peanut/maize cropping system


Autoria(s): Ward, A.L.; Rogers, D.J.
Data(s)

01/03/2006

Resumo

Large larval populations of the scarabaeid beetle Heteronyx piceus Blanchard that occur under peanuts, but not maize, in the South Burnett region of Australia are the result of a high rate and prolonged period of egg production by females feeding on peanut foliage. Heteronyx piceus is a relatively sedentary species and movement of females between adjacent fields is low. Populations of H. piceus varied markedly with landscape position. High larval populations are more likely (1 in 4 chance) to be encountered on the ‘scrub’ soils in the upper parts of the landscape than in the ‘forest’ soils in the lower half (1 in 20 chance), indicating that soil type/landscape position is a key risk factor in assessing the need for management intervention. The studies indicate that, because of the species' sedentary nature, the most meaningful population entity for management of H. piceus is the individual field, rather than the whole-farm or the region. The implications of this population ecology for management of the pest are discussed in relation to control strategies.

Formato

application/pdf

Identificador

Ward, A.L. and Rogers, D.J. (2006) Population ecology of Heteronyx piceus (Coleoptera: Scarabaeidae) in a peanut/maize cropping system. Bulletin of Entomological Research, 96 (2). pp. 129-136.

http://era.daf.qld.gov.au/755/

Publicador

Cambridge University Press

Relação

http://era.daf.qld.gov.au/755/1/WardPopulationecologyPUB-ver-sec.pdf

http://dx.doi.org/10.1079/BER2005407

http://era.daf.qld.gov.au/755/

Palavras-Chave #Nuts #Insects #Individual or types of plants or trees #Grain. Cereals, Includes oats, maize, corn, barley, rice, sorghum, wheat etc #Ecology
Tipo

Article

PeerReviewed