All species/stages of aphids.
How it works
Mode of action
Adult hoverflies emerge from the pupae and deposit their eggs in the aphid colonies. The young larvae start feeding on the aphids.
Eggs are oval, 1 mm white-grey.
Larvae are up to 7 mm long, green-yellow, without legs.
Pupae are light green, droplet shaped and can be found on the leaves.
Adults are 7-9 mm long, have a yellow face and yellow abdomen with black spots.
Aphids are consumed entirely, only skins remain. Dark excrements (meconium) on the leaves is an indicator of hoverfly larvae activity.
|3,5x3,5x3,5 cm cardboard box.
|Buckwheat hulls and vermiculite.
Directions for use
Do not open the box until you arrive at the release point. Carefully open the perforated lid of the carboard box. Hang the open box vertically on the plants, preferably close to flowers. Protect from direct sunlight or rain.
The dosage of Rophoria depends on climate, crop and aphid density and should always be adjusted to the particular situation. Start introduction preventatively or as soon as the first aphids are detected in the crop. Introduction rates typically range from 200-600 pupae per ha/release. Releases should be repeated a number of times. Consult a Koppert advisor or recognized distributor for advice on the best strategy for your situation."
- Rophoria is most effective between 20 and 30°C.
- High humidity is favourable for larval development and hatching of pupae.
- Adult hoverflies feed on pollen and nectar. Ensure flowering plants are present for optimal establishment.
For effective control of aphids combine with other predators and/or parasitoids.
Pesticides can have (in)direct effects on biological solutions. Find out which pesticides have side effects on this product.
Storage time after receipt
In the dark.
"The general conditions of Koppert (Koppert B.V. and/or of its affiliated companies) apply. Only use products that are permitted in your country/state and crop. Always comply with the conditions specified in local product registrations. Koppert cannot be held liable for unauthorized use. Koppert is not liable for any loss of quality if the product is stored for longer than recommended and/or under incorrect conditions."