Weed Information

Weed Information

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Biodiversity | Weed control | Physical control | Chemical control | Biological control | How long to control? | Successful biocontrol | 'Useful' weeds | Finding biocontrol agents | Biocontrol agents in NZ | After controls

Keeping the useful features of weeds

Where some weeds are useful, biocontrol agents can be used that control the weeds but keep the useful features of the plant. 

For example, seed-eating agents are often used in biological control programmes where some groups of people make their living from weeds (e.g., forestry groups use some weeds such as Acacia species for timber). The seed-eating agents eat the seeds ONLY and so stop the weed from reproducing and spreading. This way, people can plant the trees where they want without the weed spreading.

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Weeds in New Zealand