Controlling Weeds Using Biological Methods

SELECTING SUITABLE BIOLOGICAL CONTROL AGENTS

Selection of a suitable biological control agent begins where the noxious weed originates. After careful consideration of potential agents, one species is selected, collected and rigorously screened by I.I.B.C. to ensure that it will harm only the target weed. Any selected agent that attacks non-target plant species native to North America or crops of economic importance is rejected.

Sphenoptera jugoslavica (shown in its larval and adult stages) is used to control diffuse knapweed. It originates in eastern Europe.

Sphenoptera jugoslavica


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