The invasive species listed collectively cover less than 5% of the property
What is this?
A small number of plants that have arrived on this landscape since European settlement are so capable of wreaking havoc for both people and ecosystems that we call them invasive. Buckthorn is a well-known example. Some folks are fortunate to have purchased properties that have very few invasives (newer subdivision lots on former farm fields tend to fall into this group). Other folks aren’t as lucky (especially on wooded lots with privacy shrubs).
Invasive Plant Species
|Barberry, Japanese||Berberis thunbergii|
|Bittersweet, oriental||Celastrus orbiculatus|
|Buckthorn, common||Rhamnus cathartica|
|Buckthorn, glossy||Frangula alnus|
|Burning bush (View Video)||Euonymus alatus|
|Canada thistle||Cirsium arvense|
|Cattail, hybrid||Typha x glauca|
|Cattail, narrow-leaved||Typha angustifolia|
|Crown vetch||Securigera varia|
|Flowering rush||Butomus umbellatus|
|Garlic mustard||Alliaria petiolata|
|Hedge parsley, field||Torilis arvensis|
|Hedge parsley, Japanese||Torilis japonica|
|Honeysuckle, Asian bush||Lonicera maackii, L. morrowii, L. tatarica and L. x bella|
|Honeysuckle, Japanese||Lonicera japonica|
|Japanese Knotweed||Poygonum cuspidatum
|Moneywort/ Creeping Jenny||Lysimachia nummularia|
|Multiflora rose||Rosa multiflora|
|Purple loosestrife||Lythrum salicaria|
|Reed canary grass||Phalaris arundinacea|
|Sweetclover, white||Melilotus alba
|Sweetclover, yellow||Melilotus officinalis|
|Teasel, common||Dipsacus fullonum|
|Teasel, cut-leaved||Dipsacus laciniatus|
|Yellow Iris||Iris pseudacorus|
|Brazilian elodea||Egeria densa|
|Curly-leaf pondweed||Potamogeton crispus|
|Eurasian watermilfoil||Myriophyllum spicatum|
|Water hyacinth||Eichhornia crassipes|
|Water lettuce||Pistia stratiotes|
How do I do this?
On my own
Many people unintentionally have invasive species on their properties and it helps when they can be aware of the issue and thoughtful about it. It’s really nice if your resources allow you to slowly but surely eliminate your invasives over time and maybe even replace them with natives. It’s one of the biggest gifts you can give to support Lake County’s treasured natural heritage.
- Identify the plants in your landscape, or request a property visit so we can help. If there is something growing very well that is spreading and you never planted it, that may be a clue! Different control techniques work for different species and many can be controlled simply by pulling or cutting. Try this identification and control guide or more invasive species information on our website.
- If you need to herbicide, please:
- Stick to calm days with no rain in the forecast and with temperatures appropriate for the chemical you’re using.
- Use the right chemical for the right species at the right time of year. Here’s a great guide.
- The label is there to help you be safe and successful, so take a few minutes to read it.
- Save money while helping the environment – use the minimal amount needed to do the job.
- Protect your skin and eyes and wash up thoroughly when done.
- Label and store leftovers carefully so curious kids and pets are safe.
- If you have a lot of invasive species to deal with, here are some tips on prioritizing:
- It helps to think about where each species is coming from and where it’s going.
- Attack any newly arrived species before it gets firmly established.
- Defend ecological treasures – whether on your property or nearby. Sometimes it helps to just draw an imaginary line on the ground and vow to keep invaders from crossing it.
- Don’t let it go to seed. We repeat, don’t let it go to seed.
- Perhaps you can team up with a neighbor for extra impact or cost savings?
- Hired contractors can be surprisingly affordable sometimes, especially during slow seasons. A good contractor knows the best way to attack these species. (See below)
- Don’t purchase invasive plants or cultivars – some are banned but others are still on the market. For instance, many of us have barberry and burning bush on our properties. If your resources allow you to replace them it would be fabulous.
Hire some help
There are various companies available that control invasive plants in home landscapes. Hired contractors can be surprisingly affordable sometimes, especially during slow seasons. A good contractor knows the best way to attack these species. Below are some companies to consider (listed alphabetically) and there are undoubtedly others that are also good. No matter who does the job, this handy checklist makes it easier:
- Communicate clearly about which plants to remove. Make sure targeted areas are marked with flagging or ribbon and the contractor has good plant identification skills. Mark and discuss areas of your property that are off-limits for travelling across or for disposal of cuttings. Limit the amount of traffic beneath oak trees as much as possible.
- Be specific about what will happen to the cuttings. Will they be chipped and removed, burned on site, left where they drop, or something else?
- Demand exceptional handling of chemicals. When arranging work for our own properties, we require that every cut stem and stump promptly be treated with proper herbicides. We also require operators to be state-licensed and follow label requirements for everything ranging from weather conditions to clean-up. And we require the addition of a non-toxic dye soit’s easy to see what’s been treated.
- Standard details. Don’t forget things like references, payment, expected date of completion and whether or not you want to be on site when work takes place.
Applied Ecological Services
Conservation Land Stewardship
Hey and Associates
Integrated Lakes Management
Liberty Prairie Restorations
Native Restoration Services
Pizzo and Associates
Woodland Restorations, Inc.