To determine whether trends in pest and natural enemy abundance/diversity are consistent for a given plant species, two native saltbushes and a grass (Rhagodia parabolica, Enchylaena tomentosa and Danthonia linkii, respectively) are being evaluated on four grower properties.
Mechanical vacuum samples of the plants have been taken monthly from March 2007. Results so far indicate that natural enemies (specific parasitic wasps, predatory mites, flies, spiders, brown lacewings, and haplothrips) are over-wintering in the native vegetation refuges and thrips pests are rare.
We will continue to evaluate these plants for the presence of potential insect pests such as native hemiptera.
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Native spider consuming a pest leafhopper (Orosius argentatis). |
Parasitoid-Trichogramma sp. | Ant attacking Leafhopper | Syrphid Fly |
The project
Benefits of revegetation
Wasps with potential for biological control
Native plant screening system
Useful publications
Revegetation for Pest Management - 2008 Presentation (PDF)