1983至1984年夏季，一种紫色锈菌被秘密地、故意地、非法地引入澳大利亚，用于防控黑莓植物的蔓延。11984年2月，这种真菌在维多利亚州东南部的黑莓上被意外发现，随后在方圆100公里范围内的多个地点出现。1研究人员推断，某人从欧洲（可能是法国）携带感染真菌的叶片返回澳大利亚，并将孢子撒在黑莓叶片上，但这起违反生物安全规范的事件至今未破案。1
根据当局规定，若被起诉此类行为，最高可面临100万澳元罚款或五年监禁。1黑莓对澳大利亚造成的经济负担严重——2017年官方估计黑莓每年造成超过1亿澳元的产量损失和控制费用。1科学家埃利吉奥·布鲁泽斯曾在法国CSIRO实验室测试该真菌，于1983年初返回澳大利亚。11991年，当局开始进一步释放黑莓锈菌株。1
An unidentified individual illegally introduced a fungal pathogen into Australia in the summer of 1983-84 as an unsanctioned biological control measure against invasive blackberry plants 1. The purple rust fungus, Phragmidium violaceum, was discovered unexpectedly in February 1984 on blackberry vegetation near Yarram in southeastern Victoria, and subsequently appeared at multiple locations within a 100-kilometer radius 1. Researchers theorize that the person carried infected leaves from Europe—possibly France—back to Australia and deliberately spread spores onto blackberry foliage, though this biosecurity breach remains unsolved to this day 1.
The clandestine release violated biosecurity regulations, with potential penalties for prosecution reaching a maximum fine of A$100,000 or five years imprisonment 1. The economic stakes underscore the urgency: blackberry infestations cost Australia over A$100 million annually in productivity losses and control expenses as of 2017 1. Scientist Eligio Bruzzese had tested the fungus at a CSIRO laboratory in France and returned to Australia in early 1983; by 1991 authorities began officially releasing additional blackberry rust strains as part of an approved biological control strategy 1.
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