In Kerala’s Idukki district, the Bison Valley Panchayat is grappling with an alarming outbreak of the invasive African snail, a pest that threatens the region’s prized cardamom farms. Officials from the Kerala Agricultural University (KAU) confirm that the snail infestation now spans six wards, inflicting large‑scale damage on the spice plantations.

Background

The African snail, native to tropical Africa, was first recorded in Kerala in 2018 and has since proliferated across several districts. Its rapid breeding cycle and preference for moist, organic‑rich environments make it especially destructive in plantations littered with dried leaves and organic waste—conditions prevalent in Bison Valley.

Response and Control Measures

KAU’s Department of Nematology associate professor R. Narayana led a field team to demonstrate integrated pest‑management techniques. Farmers were shown how to set up food traps that lure and eliminate the snails. Agriculture Officer Smitha S. Kumar highlighted that poor waste management has accelerated the spread and recommended copper sulfate sprays as a chemical barrier. She confirmed that the issue has been escalated to the district agriculture department and the panchayat, with joint actions now underway.

Importance of Local Collaboration

Earlier, a similar infestation in Ezhukone Panchayat, Kollam district, was contained through coordinated efforts of local bodies and affected growers. KAU urges Bison Valley’s stakeholders to replicate that collaborative model—regular removal of organic debris, community‑wide monitoring, and timely application of control agents.

Future Challenges

If unchecked, the snail invasion could depress cardamom yields, jeopardizing farmer incomes and affecting India’s export market. Experts argue that long‑term resilience will depend on continuous ecological surveillance, adoption of biological controls, and sustainable farm practices that reduce habitat suitability for such invasive species.