GRAINS industry members are on red alert amid fears Greenpeace is planning another publicity stunt - timed to coincide with the start of harvest - to protest the use of genetically modified crops. [...] Sources were concerned Greenpeace had secured Roundup Ready test strips, which they directed for delivery to WA, but were unaware exactly what the test strips may be used for. But they believe attention may be focussed on a recent “contamination” incident in Cunderdin after hail storms battered crops in the area.