Pea & Bean Weevil (Sitona lineatus)
Weevil pest of peas and beans causing notching on leaves and root nodule damage.
Pea and bean weevil (Sitona lineatus) adults cause characteristic notching on leaf margins, while larvae feed on root nodules of peas and beans, reducing nitrogen-fixing capacity. Damage is most serious on young plants and can reduce vigour and yield. Biological control includes entomopathogenic nematodes targeting soil stages and fungi such as Beauveria bassiana, supported by cultural measures such as crop rotation and removal of volunteers.
Biological Controls for Pea & Bean Weevil (Sitona lineatus)
The options below are examples of beneficial insects and biological products commonly used against pea & bean weevil (sitona lineatus). Always refer to supplier guidance and product labels for crop safety and local registration status.
Steinernema carpocapsae
Product: Exhibitline Sc
Environment: outdoor
Temperature Range: 8.0 – 20.0°C
Rate: Apply in moist soil around plants as per label
Frequency: One application at peak larval stage
Nematodes target larvae in soil; integrate with seed treatments and monitoring.
Related Biological Solutions
Growers dealing with pea & bean weevil (sitona lineatus) often also monitor these pests as part of a complete IPM programme: