Pest identification
What's eating my la ratte fingerling potato?
Colorado potato beetle (Leptinotarsa decemlineata)
Signs: Rapid total defoliation stops tuber development; orange larvae and striped adults present together at peak
Control: Hand-pick daily; Bt tenebrionis or spinosad on young larvae; remove all plant debris after harvest
Wireworms (Agriotes spp.)
Signs: Slender fingerling tubers are tunnelled end-to-end making them unmarketable; secondary bacterial rot follows
Control: Avoid sod conversion; carrot-bait traps pre-planting; Steinernema feltiae nematodes in late summer
Peach-potato aphid (Myzus persicae)
Signs: Virus transmission causes mottled, deformed leaves and small, poor-tasting tubers despite good soil conditions
Control: Certified virus-free tubers; insecticidal soap spray; reflective mulch film to deter alate aphids
Slugs (Deroceras reticulatum)
Signs: Cavities chewed into tubers underground; worse on clay soils and in wet autumn conditions
Control: Harvest as soon as plants die back; ferric phosphate pellets; reduce soil organic debris over winter
Keep la ratte fingerling potato pest-free
Healthy plants resist pests best. Get the basics right:
La Ratte Fingerling Potato pests — FAQ
What is eating my la ratte fingerling potato?
La Ratte fingerlings suffer the full solanaceous pest repertoire: Colorado potato beetle strips haulms fast, aphids vector potato viruses, and wireworms bore the elegant slim tubers. Slugs exploit any cavity. In France and the UK this variety also faces allotment-common vine weevil in pots. Start with certified seed and rotate religiously.
How do I get rid of colorado potato beetle (leptinotarsa decemlineata) on la ratte fingerling potato?
Rapid total defoliation stops tuber development; orange larvae and striped adults present together at peak Hand-pick daily; Bt tenebrionis or spinosad on young larvae; remove all plant debris after harvest
How do I get rid of wireworms (agriotes spp.) on la ratte fingerling potato?
Slender fingerling tubers are tunnelled end-to-end making them unmarketable; secondary bacterial rot follows Avoid sod conversion; carrot-bait traps pre-planting; Steinernema feltiae nematodes in late summer
How do I get rid of peach-potato aphid (myzus persicae) on la ratte fingerling potato?
Virus transmission causes mottled, deformed leaves and small, poor-tasting tubers despite good soil conditions Certified virus-free tubers; insecticidal soap spray; reflective mulch film to deter alate aphids
How do I get rid of slugs (deroceras reticulatum) on la ratte fingerling potato?
Cavities chewed into tubers underground; worse on clay soils and in wet autumn conditions Harvest as soon as plants die back; ferric phosphate pellets; reduce soil organic debris over winter