A Primer for Moreton Bay Landholders

 Giant Rat’s Tail Grass (GRT), mainly Sporobolus fertilis and S. jacquemontii, is an invasive weed in Moreton Bay. This 1–2 m tall grass forms dense stands, producing thousands of seeds that persist for 10 years. Unlike native grasses, GRT has tough, unpalatable leaves.

• Profit Loss: Cuts pasture productivity by up to 80%, hurting livestock income.
• Property Value: Reduces land value by 10% or more.
• Environment: Harms native plants and wildlife habitats.
• Community: Causes neighbor disputes and stress from council enforcement.
  Queensland’s Biosecurity Act 2014 requires landholders to meet the General
• Biosecurity Obligation (GBO) to stop GRT spread.

• Seeds: Carried by livestock, machinery, wildlife, or contaminated hay.
• Growth: Thrives in bare soil after rain, herbicide use, or fire.
• Persistence: Seeds survive 10 years, fuelled by missed treatments.

• Clean Equipment: Wash vehicles and clothing to remove seeds.
• Quarantine Livestock: Hold for 7 days to clear seeds from fur or manure.
• Use Clean Materials: Choose weed-free hay and soil.
• Work Together: Coordinate with neighbours to prevent re-infestation.

Work with experts to:

• Identify: Confirm GRT on your property.
• Plan: Set goals and create a tailored strategy.
• Act: Use professional methods to control GRT.
• Monitor: Follow up for 3–10 years to prevent regrowth.

GRT threatens Moreton Bay’s landscapes, but with the right approach, you can reclaim your property. Grassforce is here to guide you with resources, planning, and professional services. 

Grassforce operates in Samford, Dayboro, Cedar Creek, Mount Samson  and Cashmere areas, and is one of Moreton Bay’s leading GRT management organisations. We provide free resources, customised plans, and GPS-guided services that cut chemical use by 10–20%, and focus on moving to regenerative and organic practices. Our partnerships with local catchment associations and local government offer community workshops. Contact us today to request resources and discuss your property needs.