Aphidius-System - fundamental to control of small aphids
How does Aphidius-System control aphids?
- Specialised – Aphidius colemani is the most widely used parasitic wasp for controlling small aphid species.
- Excellent searching ability – detects developing aphid hotspots even at low pest densities, allowing early intervention.
- Effective control – female wasps lay their eggs inside both aphid nymphs and adults. The larvae develop inside the host, eventually killing it.
- Rapid population build-up – a single female can lay up to 300 eggs, enabling the wasps to establish and spread quickly throughout the crop.
- Additional control effect – the presence of parasitic wasps can trigger a panic response, causing aphids to drop from the plant.
When should you introduce Aphidius-System?
- Start preventatively – introduce Aphidius-System before aphid populations begin to build up.
- Increase the dosage when aphids appear – adjust the release rate according to pest density.
- Combine for curative control – for existing infestations, a combination with Aphidoletes-System is recommended. More severe infestations can also be tackled with Adalia-System.
- Suitable for banker plants – Aphidius-System can also be used preventatively in combination with banker plants.
How do you release Aphidius-System?
- Mix gently – carefully rotate the bottle horizontally to ensure an even distribution of the mummies.
- Apply throughout the crop – sprinkle the contents onto horizontal leaves or use Bio-Boxes suspended in the crop.
- Keep off the soil – never place the mummies directly onto the soil or growing substrate.
- Leave undisturbed – ensure the material remains dry and is not moved from its release site for at least a few days.
Under which conditions should you use Aphidius-System?
- Active between 15°C and 32°C (59-89°F) – Aphidius colemani performs best within this temperature range.
- Avoid high aphid densities – excessive honeydew production can reduce the mobility of the parasitic wasps and limit their effectiveness.
- Watch for hyperparasitoids – during warmer periods, hyperparasitoids can significantly reduce the efficacy of Aphidius colemani.