Larinus minutus (weed bioagent)
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Larinus minutus on Centaurea stoebe (click on image to enlarge it)
Author(s): Laura Parsons, University of Idaho, PSES
Source: IPM Images
Author(s): Laura Parsons, University of Idaho, PSES
Source: IPM Images
Larinus minutus (weed bioagent) Gyllenhal - (lesser knapweed flower weevil)
The weevil is native to southern parts of Europe and neigbouring regions in Asia. It has been introduced into North America since 1991 as a biocontrol agent against diffuse and spotted knapweed (Centaurea spp.). The larvae feed inside the capitulum on the developing seeds and can destroy all the seeds. The adults feed on the leaves and flowers. The development time from egg through 2-3 larval instars to adult lasts around 4 weeks.
- Other images of Larinus minutus (weed bioagent) (IPM Images - click to enlarge)
pupa in Centaurea diffusa flower
on Centaurea
