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News

New Ailanthus research

Emily Anderson

New research is available on the impact of timber harvest and prescribed fire on the invasive species Ailanthus altissima.  

Check out the full article on the USFS website: Distribution and demographics of Ailanthus altissima in an oak forest landscape managed with timber harvesting and prescribed fire

Abstract

Ailanthus altissima ((Mill.) Swingle, tree-of-heaven), an exotic invasive tree that is common throughout much of the eastern United States, can invade and expand dramatically when forests are disturbed. Anecdotal evidence suggests that fire facilitates its spread, but the relationship between fire and this prolific invasive tree is poorly understood. To better understand the impacts of fire on Ailanthus, we conducted studies at Tar Hollow State Forest in southeastern Ohio, where Ailanthus is widely distributed and where, since 2001, prescribed fire has been applied to 25% of the 3885-ha study area. Our objective was to gain a better understanding of how the distribution and abundance of Ailanthus is related to recent fires, harvesting activity, and site characteristics. We quantified the abundance and demography of Ailanthus, as well as prescribed fire, harvesting, aspect, slope, and available light, using a systematic grid (400 m) of sample plots (N = 267). From these data, we identified time since last timber harvest, not prescribed fire history, as the major driver of both Ailanthus seedling and tree presence and density. Two site factors, aspect index (a transformation of aspect) and photosynthetically active radiation, were also significant predictors of seedling presence or density. These findings to demonstrate that dormant-season prescribed fire has a limited impact on the distribution of Ailanthus within forested landscapes and that recent timber harvesting (within 20 years) is the primary predictor. Thus, care in harvesting to prevent soil disturbance and spread of Ailanthus seed is paramount when managing for this aggressive species.

Webcast - Early Detection and Rapid Response to Invasive Species

Emily Anderson

Join the Stewardship Network for their August monthly webcast on Early Detection and Rapid Response to Invasive Species.  They will talk with Amos Ziegler from the Midwest Invasive Species Information Network (MISIN) at Michigan State University.

August 9, 2017 - 12:00 p.m. at

www.stewardshipnetworkwebcast.org

This link will be active at 11:30 a.m.

Not Webcast Wednesday? That link will take you to the free replay archive where you can watch most of the 138 previous webcasts.

Invasive Forest Pests Early Detector Training Workshops

Emily Anderson

 Cliff Sadof, Purdue University professor of entomology and Purdue Extension pest management specialist, and Carrie Tauscher, state community and urban forester at the Indiana Department of Natural Resources, will lead three workshops on invasive forest pests that pose a significant threat to Indiana’s urban and rural forests.

Each workshop will include presentations on the biology, signs and symptoms, and management of invasive forest pests. Participants will also learn about technology used by citizen scientists to report these pests across the state. There will also be time for participants to ask questions. Light refreshments will be provided.

Gardeners, professional foresters, concerned citizens and anyone interested in learning more about Indiana forest pests - including the emerald ash borer, hemlock wooly adelgid and the Asian Longhorned Beetle - are encouraged to register.

The workshops are free and open to all ages and levels of knowledge. Pesticide applicator CCHs, ISA CEUs, and SAF CFEs will be available. 

The workshop schedule:

* July 11, 6-8 p.m. EST at the Purdue Extension-Monroe County office, 3400 S. Walnut St., Bloomington.

* July 12, 6-8 p.m. EST at the Purdue Extension-Dearborn County office, 229 Main St., Aurora.

* July 13, 6-8 p.m. EST at the Brown County Fairgrounds, 802 Memorial Drive, Nashville.

Space is limited, so early registration is encouraged. To sign up, go to: https://www.surveymonkey.com/r/FPSOP2017.

For more information, contact Sara Stack at (765) 494-0822 or stack4@purdue.edu.

Writer: Darrin Pack, 765-494-8415, dpack@purdue.edu 

Source: Sara Stack, 765-494-0822, stack4@purdue.edu

Agricultural Communications: (765) 494-8415; 
Shari Finnell, Manager/Media Relations and Public Information, sfinnell@purdue.edu  
Agriculture News Page

NEW! County Resources Page

Emily Anderson

SICIM is proud that our new County Resources page is up and running!  A brainchild of the Communications Committee, this page is intended to help direct citizens to local resources wherever they may be in the SICIM 35 county area.  It also helps to showcase what areas founded CWMAs, and connect others interested in forming CWMAs with potential partners in their area. 

This page is still under development and we need YOUR HELP to finish it!  If you have contact information or website links to resources in your county please email them to sicim.info@gmail.com and we will add them to site. 

Updated Landowner Toolkit

Emily Anderson

The SICIM Communications Committee has been hard at work and is proud to release our newly revised Landowner Toolkit!  The Toolkit is designed to help landowners and land managers identify invasive threats, determine control options, and find assistance in control efforts.  It features useful brochures, handouts, species fact sheets, as well as useful articles and lists of control funding programs and contractors. 

Browse the updated toolkit on our website Get Involved page, or download all or some of the handouts from our Google Drive folder.  SICIM can also work with Partners interested in printing hard copies for Landowner Toolkit folders.  Just contact us at sicim.info@gmail.com or 812-653-5563.

Dubois County Park Invasive Workday - November 19th

Emily Anderson

The Invasive Species Awareness Coalition of Dubois County (ISAC) is hosting another volunteer workday to help improve native habitat and parklands in Dubois County. The workday is on Saturday, November 19 from 8:30 am to 12 noon. Volunteers are requested to spend the morning helping improve the natural habitat in the Dubois County Park around the lake, trails and campground. Members from ISAC identified invasive plants in the area earlier this fall, and have discussed invasive species issues with the Park board and staff. Targeted invasive plants for the day will be autumn olive, Japanese honeysuckle and multiflora rose. Donated pecan tree seedlings will also be planted.

DuboisWorkdayPic.jpg

Anyone interested in helping improve the natural beauty of the park is encouraged to volunteer to help out. No knowledge of plant species is necessary, as volunteers will be grouped with knowledgeable ISAC members to help eradicate invasive plants. Any resident who would like to volunteer is asked to RSVP to group president Ron Rathfon. He can be contacted at 812-678-5049 or ronr@purdue.edu. Volunteers should wear long pants and sturdy shoes and are asked to bring work gloves and their own pruners, loppers or handsaws. The workday volunteers will meet in the gravel parking lot in front of the lake, just across from the 4H Fairgrounds.

ISAC Dubois County was formed last year to focus on public awareness, mapping and eradication of invasive species in Dubois County. The group is made up of concerned landowners, nature buffs, public lands managers and natural resource professionals. ISAC intends to continue to host volunteer days at other public lands across Dubois County in the future. For more information about the group, go to www.isacdc.org or call 812-678-5049.