Farmers' groups have urged the Department of Agriculture to abandon plans to field-test GMOs in ten sites around the Philippines, over concerns about food security and ultimately rising production costs. In an interview with Business World , Manny Yap, executive director of the Magsasaka at Siyentipiko Para sa Pag-unlad ng Agrikultura (MASIPAG) umbrella organisation of farmers' groups, explained that the testing of Bt corn should stop immediately.