Spinach crown mite (SCM) can cause considerable damage to the leaves of spinach plants, reducing marketability and yield. This project with Vegetables NZ aims to understand what biocontrol options are available to be explored in further commercial-scale trials for SCM control.

The two-stage project will be led by Bioeconomy Science Institute, Manaaki Whenua Landcare Research group. Stage one (July 2025 – Mar 2026) is laboratory-based work to understand if the two selected predators can feed and reproduce on SCM and how much they can eat each day.

The second stage (Jan 2026 – Sept 2026)  will be testing the efficacy of the two predators in a greenhouse setting. The two predators being assessed by the project are Neoseiulus cucumeris and Stratiolaelaps scimitus, both known to feed on a close relative of SCM.

The approach and predators used in this project may also be applicable to ALT crops where other mite species are difficult to control.

Read more about the project:

September 2025: Two predator mites being trialled to control spinach pest.