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EFSA supports biocontrol wasp for Portugal

The bud-galling wasp, Trichilogaster acaciaelongifoliae, could be successfully introduced to control the invasive plant, Acacia longifolia, in Portugal, concludes the European Food Safety Authority (EFSA). The Authority assessed the biocontrol method after Portugal said that it was considering using the wasp to control the spread of A longifolia in coastal areas. The wasp, which is native to Australia, was successfully used in South Africa to cut seed set on the plants by up to 95%. This is likely to be repeated in the similar environmental conditions of Portugal, says the EFSA. But it warns that there could be an impact on other acacia species where they are cultivated as ornamentals.



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