What Will the Weevils Eat After They Have Eaten All the Salvinia?
The successful biological control of a weed will result in reduction, not eradication, of the target weed. Therefore, biological control agents are unlikely to completely eliminate the plant, except perhaps in isolated locations. In cases of local eradication, the weevils will disperse to find new salvinia or starve. Overall, as the population of the weed declines, so will the population of the insect. The result will be an equilibrium between weed and insect, hopefully at the level where no further weed controls are necessary. Although giant salvinia will remain as part of the flora of the United States, it will no longer dominate and damage the local ecosystems as it once did.
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- What Will the Weevils Eat After They Have Eaten All the Salvinia?
