This Dahlia Disease Prevention Policy outlines key practices we follow to reduce the spread of pathogens in dahlia plantings. Regular monitoring is essential, we inspect plants at least weekly for signs of disease and keep clear records of observations. Any dahlia showing symptoms—especially those consistent with viral infection is isolated immediately and culled if symptoms persist or appear severe. Removed plant material is destroyed and not composted.
Managing pest pressure is another critical component, since insects such as aphids, thrips, and leafhoppers often transmit diseases. Routine scouting, use of traps, removal of nearby weeds, and encouraging beneficial insects through companion planting and regular releases of appropriate of beneficial insects help keep pest levels low. When needed, treatments follow integrated pest management principles. We do not use any products harmful to our pollinators or beneficial insects.
Strict sanitation plays a vital role in prevention. Tools like snips, knives, scalpels and stakes are disinfected between plants using alcohol, bleach solution, or a horticultural disinfectant. We prefer a 10% bleach solution.
Environmental management also supports our disease prevention. Good soil health, plant rotation, appropriate spacing, and watering practices that avoid prolonged leaf wetness help reduce fungal and bacterial issues.