Chondrinid snails

Biology and life cycle: These mollusks prefer moist, shaded environments with high calcium content in the soil. They are hermaphroditic organisms. The life cycle involves laying eggs in damp substrate. They are primarily nocturnal or active during periods of high humidity, feeding on decomposing organic matter, but switching to fresh plant tissues when food sources are scarce.

Host plants and damage symptoms: These pests pose a threat to vegetable, berry, and ornamental crops, especially during early growth stages. They scrape the epidermis of leaves, chew holes, and damage young seedlings. A distinctive shiny mucous trail is often left on the surface of leaves and fruits, creating a moist environment that encourages the colonization of fungal pathogens.

Economic impact: High populations of Chondrinidae can lead to the total loss of young seedlings and significant degradation of produce quality. Beyond mechanical damage, these snails act as vectors for various phytopathogens, including fungal spores and bacteria, which cause rot in fruits and stems both in greenhouses and open fields.

Control measures: To effectively control these pests, a multi-faceted approach is required:

• Regular soil cultivation to disrupt snail movement paths.
• Installation of physical barriers (e.g., gravel or crushed eggshells) around planting beds.
• Usage of mechanical bait traps.
• Application of approved molluscicides based on iron phosphate when damage thresholds are exceeded.
• Diligent removal of plant debris and garden waste to reduce potential habitats.