Skip to main content

Could herbicide used to control alien weeds be harming threatened New Zealand spiders?

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract

The endangered spider Latrodectus katipo Powell, 1871 (Theridiidae) is restricted to coastal habitats around New Zealand, which are being invaded by lupins Lupinus aboreus Sims. We tested the effect of twoherbicides used to control lupins, Grazon® (triclopyr) and Versatill® (clopyralid) and the surfactant Boost® (dimethicone copolyol) on the survival of an exotic surrogate spider species Steotoda capensis (Theridiidae). The herbicides were tested at half and full application rates and caused no significant increase in mortality 7 days after treatment under laboratory conditions. However, the surfactant resulted in significantly higher spider mortality (c. 35%) compared with the other treatments. Recommendations were made to limit the use of surfactant when applying herbicide in situations where threatened invertebrate species may be present.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Keywords: Steotoda; conservation; herbicide; katipo; spiders; weed

Document Type: Short Communication

Affiliations: 1:  Department of Conservation, Christchurch Mail Centre, Christchurch, New Zealand 2:  HortResearch NZ Ltd, Lincoln, New Zealand

Publication date: 2009-12-01

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more