Agriculture Reference
In-Depth Information
Figure 8.3
Possible shifts in plant community composition following release ofa
weed biocontrol agent.Before introduction ofthe control agent,the target weed
species dominates the agroecosystem (a).Suppression ofthe target weed by the
biocontrol agent might result in improved crop performance (b),but,
alternatively,it might allow formerly minor weed species to fill the ecological gap
created by removing the target weed,resulting in no improvement in crop
performance (c).
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