Know your pest pressure: Monitoring is the foundation for managing lucerne seed wasp
What is happening in your crop may not always be obvious until yield has already been lost. DNA testing of lucerne seed deliveries found lucerne seed wasp in every harvest year and crop assessed between 2018 and 2023. Estimated industry losses averaged $5.4 million annually, with around 35% of losses concentrated in just 10% of paddocks. Later-harvested crops were generally at greater risk, although parasitoid wasps may provide valuable natural control. This research has built a clearer picture of when and where losses occur, with a longer-term aim of predicting high-risk seasons early enough for growers to act.
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