Intraguild Predation of Hippodamia variegata on Aphid Mummies in Cotton Field.

ABSTRACT: Intraguild predation among arthropod predators in agricultural ecosystems may have a negative impact on biological control. At present, there are few direct reports on trophic relationships among participants of predation in field groups. In this study, we measured the feeding choices of Hippodamia variegata (Goeze) towards mummies with different densities of Aphis gossypii Glover. The dynamics of the occurrence of mummies in the cotton field were investigated over 2017-2019. Singleplex PCR and multiplex PCR were used to detect the predation of 2090 H. variegata individuals on aphids and mummies in Xinjiang cotton field, which revealed the intraguild predation frequency between H. variegata and various parasitoids. There was no obvious feeding preference of H

SUBMITTER: Dou S 

PROVIDER: S-EPMC9862560 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature