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Vegetation Plan - Ontario Parks

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al. 2000).<br />

- Patches can spread 1-2 m<br />

per year.<br />

- Vertical roots can grow as<br />

deep as 6.8 m.<br />

- Horizontal roots can spread<br />

as much as 6 m in one<br />

season (Havinga et al. 2000).<br />

Burning<br />

- Burn in late spring; often requires several years to control.<br />

Herbicide Application<br />

- Deep roots make herbicide control with glyphosate difficult<br />

(Havinga et al. 2000).<br />

38

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