先正达 据公司新闻稿称，北美公司表示，美国农业部针对事件 COT67B 取消了对其抗虫棉特性的管制，事件 COT67B 是其 VipCot 棉花特性堆栈的最终组成部分。
先正达表示，该决定为 2012 年生长季在美国的商业销售扫清了道路。
The world’s largest agrochemicals company is licensing the individual traits and the VipCot trait stack to seed providers. In 2010, the company announced agreements with 拜耳作物科学, 陶氏农业科学 和 孟山都 允许他们在棉制品中使用 Vip3A 技术。 Vip3A 蛋白提供了对鳞翅目害虫的广谱控制。
“Providing multiple modes of insect resistance to growers will help prevent the development of resistant insects, as well as offer growers an opportunity to protect all of their cotton acres from most caterpillar pests,” David Morgan, Syngenta North America Region Director, said in a statement.
The VipCot trait stack combines the Cry1Ab protein and the Vip3A protein, which is similar to the protein found in Syngenta’s Agrisure Viptera corn trait and is a new mode of action in both cotton and corn.
“Syngenta’s Vip3A technology brings much needed support to Southern cotton growers, who face persistent pressure from pests such as the cotton bollworm, tobacco budworm and the entire armyworm complex,” the company said in a statement.
美国环境保护署在 2010 年批准了单一棉花事件的种子登记和组合性状堆栈的商业登记，并批准了 VipCot 棉花技术的自然避难选择。
棉花特性已获得澳大利亚、加拿大、新西兰和墨西哥的进口许可。