Many pests, including spider mites, aphids and thrips, are easily treated with an insecticidal soap spray. Reapply every week to 10 days if you continue to notice pests on your dahlias. Seek out safe alternatives, such as chemical-free slug pellets.
- What bugs look like dahlias?
- What pests attack dahlias?
- What is eating my dahlia stems?
- How do you get rid of blackfly on dahlias?
What bugs look like dahlias?
Dahlia Pests
- Aphids.
- Thrips.
- Mites.
- Leafhoppers.
What pests attack dahlias?
Aphids (greenfly and blackfly), capsid bugs, caterpillars, earwigs, red spiders, slugs, thrips and wasps are the main pests which attack dahlias, while wireworms can damage the roots in the ground and woodlice can damage them while they are in store.
What is eating my dahlia stems?
Earwigs are omnivorous, they feed on other small invertebrates and plant material. They can reduce fruit aphid problems but they may damage flowers and leaves of clematis, dahlia, chrysanthemums and occasionally other plants. Earwigs and the damage causes to a cosmos flower.
How do you get rid of blackfly on dahlias?
Treatment: A strong jet of water from a hose will dislodge the pests. However, the plant may not be able to cope so a solution of soapy water may be applied. Alternatively, they can be picked off by hand.