Mt. Kanlaon Eruption Affects Nearly 6,800 Hectares of Sugar Plantations

The recent eruption of Mt. Kanlaon has severely impacted 6,797 hectares of sugar plantations in Negros Occidental, the Philippines’ sugar capital, according to the Department of Agriculture (DA).

Reports from the Sugar Regulatory Administration (SRA) indicate that affected areas include La Carlota, La Castellana, Bago City, and Murcia, which are among the province’s largest sugarcane-producing regions.

Threat to Domestic Sugar Supply

SRA Administrator Pablo Luis Azcona warned that prolonged ashfall on sugarcane crops could further reduce the country’s domestic sugar output. Ashfall’s “burning effect” on sugarcane leaves may lead to plant damage, early maturation, or death.

“If the ash stays longer on the leaves, it disrupts photosynthesis and can cause significant damage to the crop,” Azcona explained. He added that this could impact the buffer stock of sugar, exacerbating existing challenges in the industry.

La Carlota, home to one of the largest single mills in Negros, contributes around 10% of the nation’s sugar production. The Association of Farmers of Carlota and Pontevedra Inc., a major player in domestic sugar supply, is among the groups affected.

Previous and Current Eruption Impacts

The latest eruption, which occurred on Monday, December 9, spewed heavy ashfall and sulfuric fumes across the province. A similar eruption in June caused an estimated ₱84.1 million in damages to crops and fisheries.

Research by the La Granja Research Station in La Carlota underscores the long-term effects of volcanic ash. These include reduced photosynthesis in plants and disruptions to soil chemistry, which can significantly diminish crop yields.

Moving Forward

With the sugar industry in Negros Occidental already grappling with supply challenges, experts fear further eruptions could compound the region’s economic losses. Mitigation efforts and assistance to farmers are being prioritized to minimize the impact.