Stung Treng, July 1, 2024 – Agriculture officials in Stung Treng Province are working with local authorities and farmers to tackle severe worm infestations that have affected more than 1,000 hectares of rice, corn, and cassava fields.
During the eradication efforts in Kamphoun commune, Sesan district on June 29, 2024, Soeung Kang, a local farmer, reported extensive damage to crops in the area. "The worms have infested almost every field of corn, rice, and cassava," he said. "We need guidance on effective pesticides because the ones we currently use only work for a few days before the worms return. We need advice on which strong pesticides to buy and how to use them properly."
Yatha, an official with the Office of Agriculture and Agricultural Productivity, explained the life cycle of the worms, noting that they originate from butterfly eggs. He advised farmers to monitor their crops closely, especially at night, and to spray pesticides before the worms begin feeding. "If butterflies and worms are seen, chemical pesticides should be used promptly to control the infestation," he added.
"One of the most effective measures is to use agrochemicals containing emamectin (Bacillus) and other substances specified on the bottles we recommend," Yatha stated.
Tumni Ro, Director of the Provincial Department of Agriculture, Forestry, and Fisheries, emphasized the importance of understanding and using the correct pesticides. "Farmers should purchase pesticides from reputable sources and use them correctly for maximum effectiveness," he said. "If crops are affected by worms or other diseases, it is crucial to inform relevant officials immediately so we can provide assistance. Farmers facing worm problems can contact their local commune, district, or the Provincial Department of Agriculture, Forestry, and Fisheries for professional guidance."
Agricultural technical experts recommend using pesticides with clear labels and information to avoid increasing pests' resistance. Changing pesticides from different groups (IRAC) can also help manage resistance.
