Canada OKs Syngenta's Viptera maize lines
Syngenta has received Canadian approval for its genetically modified insect-resistant Agrisure Viptera 3111 and 3110 maize. Viptera 3111 combines Agrisure 3000GT with MIR162, which was approved in April ( Agrow No 590, p 34). Viptera 3111 produces the Bt Vip3A, Cry1Ab and mCry3A toxins for the control of above- and below-ground pests, while Viptera 3110 produces the Vip3A and Cry1Ab toxins. Both lines are tolerant the herbicides, glyphosate and glufosinate-ammonium. They were approved by the Japanese authorities in June ( Agrow No 594, p 27). Syngenta introduced 41 maize hybrids incorporating Viptera 3111 in the US last month ( Agrow No 599, p 21).