How Many and What Kind of Agents for the Biological Control of Weeds: a Case Study with Diffuse Knapweed
نویسنده
چکیده
Overview: Following its introduction to North America, diffuse knapweed came to occupy millions of hectares of rangeland. This is the story of biological control efforts done over 25 years before an effective agent was introduced. The moral is that for optimal success of biological control, thorough work should be done to understand the ecology of the target weed and its natural enemies. Effective agents are unlikely to be abundant in the native habitat, but are likely to be able to kill the plants in the exotic habitat.
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