Category Archives: Mulching

Best method to deal with the berries of non-native invasive buckthorn?

In many old-growth buckthorn infestations, buckthorn berries have been dropping for years creating a significant seed bank that will germinate like crazy when the buckthorn canopy is removed and sunlight reaches the woodland understory (see NOTE below). Trying to haul … Continue reading

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Suspend use of Herbicide for Buckthorn Treatment in Spring

Typically in May through June (starting mid-April this year) we recommend withholding use of 18-20% glyphosate (i.e. RoundUp Concentrate Plus) for cut-stump treatment of non-native invasiveĀ buckthorn. Here is why: The cambium layer is the target area for application of herbicide … Continue reading

Posted in Biological control of garlic mustard, Buckthorn Control, Duff layer, Garlic Mustard, Garlic mustard control options, Invasive Species, Mulching, Native Plant Species | Tagged , , , , , , , , , , , | 2 Comments

EARTHWORMS, DUFF AND OTHER STUFF

Would you be surprised to learn that earthworms are an invasives species in Minnesota? I learned the nasty truth about earthworms in 2009 during a Master Naturalist course. Earthworms may help aerate the soil in my vegetable garden but are … Continue reading

Posted in Buckthorn Control, Duff layer, Garlic Mustard, Mulching | Tagged , , , , , , , , , | Leave a comment