Small snail infestation a growing threat to cardamom farmers in Idukki, Pg 3

The Hindu | May 9, 2025

Key Highlights

• Cardamom plantations in Idukki, Kerala face a serious threat from small snail infestations, especially after recent copious summer rains.
• Snails are damaging new panicles and flowers, resulting in potential large-scale crop loss.
• Farmers are resorting to metaldehyde pellets for pest control.
• The snail activity starts after 7 p.m., primarily during the rainy season.
• Multiple areas including Vandanmedu, Kumily, and Chakkupallom have reported complaints.

Detailed Insights

• The infestation, which started last October, has intensified with the arrival of May rains, coinciding with the growth period of cardamom.
• Farmers anticipated a good yield this season, but the pest attack may derail those expectations.
• Pesticide shop owners confirmed increased demand for molluscicides like metaldehyde, a common chemical used to kill snails.
• The infestation affects multiple high-range regions, indicating a regional agricultural threat.
• Lack of timely preventive action can lead to economic loss and reduced productivity.

Scientific/Technical Concepts Involved

• Metaldehyde Pellets: A chemical molluscicide used to control snail and slug infestations in agricultural fields.
• Panicle: A loose, branching cluster of flowers, important in crops like cardamom for seed formation.
• Pest Surveillance: Continuous observation to detect pest infestations early and apply timely interventions.

Significance

• Reflects the impact of climate factors (rain) on pest populations and crop vulnerability.
• Emphasizes the need for integrated pest management (IPM) and localized crop protection strategies.
• Underscores challenges in spice crop production, vital for both domestic economy and exports.
• Highlights the importance of extension services in helping farmers tackle emerging bio-threats.

Mains Mock Question:

Rainfall patterns are increasingly influencing pest outbreaks in Indian agriculture. Discuss the implications of pest infestations like the small snail attack on spice crops and suggest suitable policy and technological interventions. (15 marks)