Category: News
Date published: October 25, 2023

Rhyzobug – ready to deal with armoured scale

Introducing your crops’ new favourite ladybird – Rhyzobius lophanthae – that will help you to control various types of armoured scales in your crops. The species is proving to be effective in a number of outdoor crops that include citrus, grapes, blackberries, kiwi and mango.

Armoured scales suck cell sap in fruit trees and berries that eventually result in defoliation and the dying back of twigs or larger branches. To prevent this, Rhyzobug can be applied both in greenhouses and in outdoor crops to control a wide range of harmful scale insects.

Product Manager Jenette Douma: ‘Our colleagues at Koppert Spain have been instrumental in making this product effective for outdoor cultivation. We have increased the volume of Rhyzobug from 250 to 500 ladybirds and changed the packaging from a plastic bottle to a more sustainable cardboard tube which is more suitable for agriculture.’

Why use Rhyzobug?

  • It reduces the number of pesticide applications
  • Makes it easier to comply with the pesticide blacklist in the value chain
  • Contributes to a healthier end product
  • Environmentally friendly and improves biodiversity
  • Controls different species of armoured scales effectively
  • Easy to apply
  • Easy to combine with other natural enemies like Aphytis melinus
  • Both adults and larvae predate on armoured scale insects

Easy application

Rhyzobug has a wide host range and predates on oleander scale, rose scale and Californian red scale, amongst others. ‘It’s really easy to apply,’ Jenette Douma assures. ‘You need to start introduction as soon as the first armoured scales are detected. You apply it in the evening and tap the beetles directly onto the plants based on 500-3000/ha (for outdoor cultivation) in several applications depending on the degree of infestation.’