Why Conservation Agencies like Missouri Department of Conservation Discourages Planting Invasive Species and How to Eliminate Them

Bush Honeysuckle

As stewards of our natural landscapes, it is our responsibility to protect the health and biodiversity of our environment. However, certain plants, despite their aesthetic appeal or quick growth, can have devastating effects on local ecosystems. In Missouri, the Department of Conservation (MDC) and other conservation groups strongly discourage the planting of invasive species such as honeysuckle and autumn olive. Here’s why these plants pose such a threat and how homeowners and landowners can take effective steps to eliminate them.

The Threat of Invasive Species

1. Disruption of Native Ecosystems:
Invasive species like honeysuckle and autumn olive outcompete native plants for resources such as light, water, and nutrients. This disruption can lead to the decline of native plant populations, which in turn affects the wildlife that depends on them. For instance, birds and insects that rely on native plants for food and habitat may struggle to survive. In particular, Missouri’s wild turkey habitat has been negatively impacted as their main sense for defense is their eyesight (as Missouri  turkey hunters well know). Since areas with thick invasive species make it hard for them to see in the choked out forest understory they avoid these areas resulting in habitat loss.

2. Alteration of Soil Chemistry:
Autumn olive, in particular, can change the nitrogen levels in the soil, making it less suitable for native plants that thrive in low-nitrogen environments. This alteration can lead to a cascade of negative effects on the entire ecosystem.

3. Decreased Biodiversity:
By dominating the landscape, invasive species reduce plant diversity. This monoculture can weaken ecosystems, making them more susceptible to diseases, pests, and climate change.

4. Economic Impact:
Controlling invasive species and mitigating their damage can be costly for landowners and government agencies. The presence of these plants can also lower property values and reduce the productivity of agricultural land.

Autumn Olive – Invasive Species

Why Honeysuckle and Autumn Olive Are Problematic

Honeysuckle:
Honeysuckle species, particularly the bush honeysuckle, grow rapidly and form dense thickets that choke out native plants. They produce a large number of seeds that are easily dispersed by birds, leading to widespread colonization. Additionally, their early leaf-out in the spring shades out native plants before they have a chance to grow.

Autumn Olive:
Autumn olive is a hardy shrub that thrives in a variety of soil conditions. It produces abundant fruit, which birds eat and disperse widely. Its ability to fix nitrogen allows it to grow in poor soils, further outcompeting native plants that are adapted to those conditions.

Tips for Eliminating Invasive Species

Successfully removing invasive species requires persistence and a combination of methods. Here are some strategies for homeowners and landowners:

1. Mechanical Removal:

• Hand-pulling: For smaller plants or seedlings, hand-pulling can be effective, especially when the soil is moist. Ensure you remove the entire root to prevent regrowth.
• Cutting and Mowing: Regularly cutting or mowing can weaken the plants over time. However, this method often needs to be combined with other techniques, as it may not kill the root systems.

2. Chemical Control:

• Herbicides: Apply appropriate herbicides to cut stumps or foliage following guidelines from the MDC or a professional. Herbicides can be effective, but they must be used responsibly to avoid harming native plants and wildlife.

3. Prescribed Burning:

• In some cases, controlled burns can help manage invasive species. This method should only be carried out by trained professionals to ensure safety and effectiveness.

4. Replanting with Native Species:

• After removing invasive plants, replant the area with native species to prevent re-invasion. Native plants help restore the ecosystem balance and provide habitat for local wildlife.

5. Monitoring and Maintenance:

• Regularly check your property for new growth of invasive species and address them promptly. Consistent monitoring is crucial for long-term control.

Conclusion

The fight against invasive species like honeysuckle and autumn olive is crucial for preserving Missouri’s natural beauty and biodiversity. By understanding the threats these plants pose and taking proactive steps to eliminate them, homeowners and landowners can play a significant role in conservation efforts. Remember, healthy ecosystems benefit everyone, from the smallest insects to the largest mammals, and ultimately, to us as well. Let’s work together to protect our environment for future generations.

More Info from MDC

http://www.family-outdoors.com/