A farmer shows the golden apple snail that attack the padi plants in Alor Sekawan village in the northern Malaysian state of Kedah December 17, 2008. Instead of relying heavily on hazardous pesticides, farmers in Kedah use the "Khaki Campbell" ducks to ward off attacks by golden apple snails in padi fields which had caused damage to the crop during the early stage of planting. REUTERS/Zainal Abd Halim (MALAYSIA)