How Many Weed Biocontrol Projects have been Developed?
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Since the first programs in weed biocontrol, the use of classical biological control against weeds has steadily increased, and Julien, in his "World Catalogue of Agents and their Target Weeds" (1992), lists 117 target plants against which 729 exotic invertebrates and fungi have been deliberately released.  Successful weed biocontrol projects in Australia include the campaigns against the water weeds - Salvinia (Salvinia molesta) and Water hyacinth (Eichhornia crassipes) - and the campaign against Harrisia cactus (Eriocereus martinii) in Queensland. (See videos below).

 

    

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