Blog Archives

Monarchs and swallowworts

This article discusses the impact of swallowworts on monarch butterflies.

Invasive Plants – Issues, Challengers, and Discoveries

The USDA Forest Service Rocky Mountain Research Station is pleased to announce a new webinar series, Invasive Plants – Issues, Challenges, and Discoveries.  It is sponsored by our station’s Grassland, Shrubland and Desert Ecosystems Science program.  This free interactive series, which includes seven webinars, will provide attendees with cutting-edge information about invasive plants and their management.  We encourage land managers, professionals, scientists, and other interested people to attend.  The first webinar will take place on Thursday, January 23, 2014 from 12:00pm- 1:00pm Mountain Time.

 

 

 

Webinar Series Schedule (All webinars will begin at 12:00pm Mountain Time)

 

Date Webinar Topic

 

January 23, 2014 Determining identity and origin of invasive plant species John Gaskin

 

February 27, 2014 Rapid evolution of biocontrol insects in response to climate change Peter McEvoy

 

March 13, 2014 Merging chemical ecology and biocontrol to predict efficacy and climate effects Justin Runyon

 

March 27, 2014 Hybridization in weedy species Sarah Ward

 

April 10, 2014 Biogeography of plant invasions Dean Pearson

 

April 24, 2014 Pathogen-based biological control of grassy weeds Susan Meyer

 

May 8, 2014 Classical biological control of weeds Sharlene Sing

 

Please refer to the attached flyer for details and logistics for the webinar series.

Invasive Plants Webinar Series 2014

New Children’s Book About NNIS

I just wanted to share information about a new children’s book written by the Potomac Highlands CWPMA, “The Pests that Girdle the Home of Tucker the Turtle.”   The star of the book is Tucker, an Eastern box turtle who was born and raised in WV.  Through the telling of his story, Tucker shares the changes that he has seen as non-native invasive species have spread across his home. Spring wildflowers are disappearing, trees like native hemlocks are dying, and many strange, new critters have taken up residence.  Tucker shares his experiences with fifteen different invasive species including insects, plants, and even a fish!

I am also attaching a few pages from the book for your information: Tucker_Snippet.  More information can be found on the CWPMA’s Website at http://www.phcwpma.org/tucker.

 

A burning problem: burning bush

bbush1Burning bush, Euonymus alatus is a deciduous shrub that grows to 6-20 feet tall and wide.  Despite its invasive nature, it is widely available in the nursery industry and wildly popular with homeowners.  Burning bush is fast growing and easy to spread.   Burning bush can be an attractive hedge or foundation shrub in the yard, but it will also invade a variety of natural sites including high quality woodlands, wetlands and even prairies.  Once established, it forms dense thickets that displace native species and hinder natural succession.  Burning bush is native to Asia and was first introduced into the US in the 1860’s for its red fall color.  It continues to be sold and planted as an ornamental, even though it is considered one of the top invasive exotic species in the Midwest to avoid by most experts.

WHY SHOULD I BE CONCERNED?
bbush
It has been widely planted as an ornamental for its spectacular red autumn foliage, fruits and for its tolerance to salt.  It spreads from seed, is dispersed by birds and colonizes by root suckers.  It thrives in the shade where it displaces spring wildflowers and other natives.  It is a very adaptable plant and can thrive in a variety of sites, wreaking havoc on a variety of native ecosystems.

MANAGEMENT OPTIONS
Seedlings and young plants can be hand-pulled when the soil is moist to insure removal of the roots system.  The shallow and fibrous root systems can be removed with a spading fork and pulled with a weed wrench.  On larger plants cutting alone results in thicker, more dense re-growth.  Cutting should only be followed by painting the stump with a herbicide.

It can be effectively controlled using any of several readily available herbicides such as glyphosate (RoundUp),  tryclopyr or imazapyr.  Foliar application has proven effective in controlling these species, but requires more herbicide and can have greater impacts to non-target species.    By cutting the shrubs and painting just the stumps, burning bush and many other invasive exotics can be controlled using less chemicals.  Always read and follow the product label and understand Federal and State requirements.

While burning bush is an attractive plant, there are many more, more attractive native shrubs.  When considering planting, select native plants.  Native plants are adapted to local conditions and will usually do better over time than non-native species.  They also provide additional ecological benefits in addition to adding color and character to the yard.  There are several native plants available in nurseries with vibrant red fall color.  These include Virginia sweetspire, some viburnums, some serviceberries, black gum, Virginia creeper, hazelnut and currants.

Article by Ann Bonner

USE PESTICIDES WISELY: ALWAYS READ THE ENTIRE PESTICIDE LABEL CAREFULLY, FOLLOW ALL MIXING AND APPLICATION INSTRUCTIONS AND WEAR ALL RECOMMENDED PERSONAL PROTECTIVE GEAR AND CLOTHING. CONTACT YOUR STATE DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS, RESTRICTIONS OR RECOMMENDATIONS.

Identification and Management of Invasive Knotweeds

Techline  Invasive Plant News 09.07.2013 – Learn distinctive identification features for four invasive knotweeds and treatment recommendations based on current research.

http://techlinenews.com/articles/2013/identification-and-management-of-invasive-knotweeds?utm_content=appalachianohioweeds%40gmail.com&utm_source=VerticalResponse&utm_medium=Email&utm_term=Identification%20and%20Management%20of%20Invasive%20Knotweeds%26nbsp%3B&utm_campaign=TechLine%20Invasive%20Plant%20News%3A%20FALL%202013content

Jackson: Tree of Heaven not heavenly

Article from Jackson, Ohio about Tree of Heaven from the Telegram

http://www.thetelegramnews.com/main.asp?SectionID=6&SubSectionID=83&ArticleID=18952

Kudzu: The Vine that Ate the…North?

DSCF0042Kudzu (Pueraria montana) has long been known as “the vine that ate the south”.  In recent years, however, it has been gaining a foothold in Ohio.  There are currently more than 60 known locations in the state.  Although the majority of these areas are located in southern Ohio, it can be found across the entire state from Lawrence to Cuyahoga County.  Twenty-two counties are known to have populations of this invasive vine, revealing that cold winters aren’t enough to keep it at bay.

Kudzu was introduced to the United States in 1876 at the Philadelphia Centennial Exposition to be planted in its Japanese Garden area.  The large bright green leaves and showy purple flowers quickly led to its use in the horticultural industry, and in the 1930s it was widely planted for erosion control.  From there, its use as livestock forage was discovered, leading to plantings throughout the south to feed cattle.  Ohio has recently joined at least 14 other states in adding kudzu to the state’s noxious weed list.

kudzu irontonThis is a species that poses many threats to our Ohio woodlands.  Kudzu has been shown to have very rapid growth rates (up to a foot a day), and can take over large areas of land relatively quickly.  This vine will grow over anything it encounters, including trees, killing them over time.  Kudzu is very aggressive and can quickly cover an area, blocking sunlight to all native plants.  Once established in an area, kudzu is very difficult to control.  Early detection and removal is the best method for getting rid of it.

glacier2010 486Kudzu has large compound leaves with three leaflets per leaf.  Each of the three leaflets is three to seven inches long and will often have lobes.  Flowers are generally present from June to September, and are two to 12 inch long bright purple clusters similar to pea flowers.  The fruit is present from September to January, and consists of flat, tan, hairy seed pods up to three inches long.  Each seed pod can have three to ten hard seeds.  The young vines are covered with fine yellowish hairs, and the older vines can get up to four inches in diameter.  The main method of spread for kudzu is through above ground runners, although it can also spread by seed.

More information on the control of kudzu can be found at http://www.nps.gov/plants/alien/fact/pumo1.htm. You can also contact Eric Boyda of the Appalachian Ohio Weed Control Partnership by phone at 740-534-6578 or email at appalachianohioweeds@gmail.com.  Article by Stephanie Downs

Great Lakes Phragmites Collaborative Webinar Series

The Great Lakes Phragmites Collaborative webinar series has focused on invasive Phragmites in the Great Lakes region to encourage dialogue and technology transfer throughout the region. This series will include topics such as: Current research on Phragmites control, management techniques and case studies, monitoring and assessment protocols, mapping and tracking and regional management initiatives. Much of the information can help us understand phragmites management in southeast Ohio.

To access their past recordings, click on this link:

http://greatlakesphragmites.net/webinars-presentations/

IPC invasive plant webinar series archive

I wanted to direct everyone to a valuable series of previously recorded invasive plant webinars.  Content covered can be important to anyone, including private landowners, all the way up to regional managers of invasive plants.  Check it out if you have some time.  http://www.ipcwebsolutions.com/outreach.htm

Phenology update: Garlic Mustard

100_3393Garlic mustard – Alliaria petiolata; Basal rosettes have normally grown enough to be easily spotted now.  The garlic mustard in this photo is particularly robust.  Also notice the Johnson grass in the background, and ground ivy in the front.