4 Risk assessment and mitigation strategies for cotton bush spread pathways. Risk Risk Pathway or vector Risk outcome Mitigation strategy ability score rating Extreme probability because Treat cotton bush cotton bush is adapted for before flowering to wind spread as the primary kill parent plants and means of seed dispersal. prevent seed Natural spread production. 1 by animals, 5 4 20 Extreme Most fall within 20m of the wind and water parent plants, but some can be carried many kilometres by strong wind, and by water movement. Cotton bush be moved on Inspect reports from agricultural equipment if the public. contaminated by seed-bearing Use communications Machinery, soil and parts of cotton bush to urge landholders 2 vehicles and 3 4 12 High plants. to practice equipment biosecurity if in where cotton bush is seeding.
4 Risk assessment and mitigation strategies for cotton bush spread pathways. Pathway or vector Risk score Risk rating Risk outcome Mitigation strategy 1 Natural spread by animals, wind and water 5 4 20 Extreme Extreme probability because cotton bush is adapted for wind spread as the primary means of seed dispersal. Most fall within 20m of the parent plants, but some can be carried many kilometres by strong wind, and by water movement. Treat cotton bush before flowering to kill parent plants and prevent seed production. 2 Machinery, vehicles and equipment 3 4 12 High Cotton bush be moved on agricultural equipment if contaminated by seed-bearing soil and parts of cotton bush plants. Inspect reports from the public. Use communications to urge landholders to practice biosecurity if in where cotton bush is seeding. ability
Cotton%20Bush%20Situation%20Statement.docx