2 Works

Argentine stem weevil larval populations in irrigated pasture

Mark McNeill, Chikako Van Koten & Stephen Goldson
Listronotus bonariensis (Kuschel) is a pest of agriculturally important graminaceous species, with mining larvae that kill the stems of the host plants. In this study, larval populations were measured in spring and summer in irrigated dairy grassland comprising Lolium perenne L. (cv. Nui) and Poa annua L. with and without the endophyte Epichloë festucae var. lolii Latch, M.J. Chr. and Samuels. Larvae were extracted from tillers taken from the swards of these two grass species...

Interactions between silicon and alkaloid defences in endophyte-infected grasses and the consequences for a folivore

Ximena Cibils-Stewart, Wade J. Mace, Alison J. Popay, Fernando A. Lattanzi, Susan E. Hartley, Casey R. Hall, Jeff R. Powell & Scott N. Johnson
1. Grasses have developed a wide range of morphological and physiological mechanisms to resist herbivory. For instance, they accumulate silicon (Si) in tissue, as physical defence, and associate symbiotically with foliar Epichloë-endophytes that provide chemical defence via antiherbivore alkaloids. Recent evidence showed that some Epichloë-endophytes increase foliar Si in forage grasses; however, it is unknown whether this impacts insect herbivores. Furthermore, while Si is primarily a physical defence, it also affects production of plant defensive...

Registration Year

  • 2021
    2

Resource Types

  • Dataset
    2

Affiliations

  • AgResearch (New Zealand)
    2
  • Instituto Nacional de Investigación Agropecuaria
    1
  • Western Sydney University
    1
  • University of Sheffield
    1