Premium
The impact of spiders and high temperatures on cereal aphid (Rhopalosiphum padi) numbers in an irrigated perennial grass pasture in South Australia
Author(s) -
BARRO PAUL J. DE
Publication year - 1992
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1992.tb03983.x
Subject(s) - rhopalosiphum padi , biology , aphid , linyphiidae , agronomy , pasture , perennial plant , predation , myzus persicae , aphididae , pest analysis , homoptera , spider , ecology , botany
Summary Spiders were the most important group of aphid natural enemies in an irrigated perennial grass pasture. The Lycosidae and Linyphiidae were the only families encountered. An exclusion experiment found predation by spiders to be an important factor in controlling aphid numbers. Together with high temperatures, they maintained aphid numbers at a lower than expected level.