[MAIPC] The Garlic Monster - Third Year Adults and Beyond.

Mon Jun 1 13:54:45 PDT 2015

As a general rule, many biennial plants can function as short-lived perennials.

Alan V. Tasker, Ph.D.
Senior Regulatory Policy Specialist
USDA  Animal & Plant Health Inspection Service
Plant Protection & Quarantine
Regulations, Permits & Manuals;
Plants for Planting Import Policy Staff
4700 River Road, 4C01.23
Riverdale, MD 20737

Alan.V.Tasker at aphis.usda.gov<mailto:Alan.V.Tasker at aphis.usda.gov>

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http://www.aphis.usda.gov/planthealth/nappra

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From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Coon, Cheryl R -FS
Sent: Monday, June 01, 2015 12:16 PM
To: maipc at lists.maipc.org
Subject: [MAIPC] FW: The Garlic Monster - Third Year Adults and Beyond.

FYI, both Jill Vance and Vicki Meretsky testifie to large third year (and beyond) adults here in IN.  See their messages below

[Forest Service Shield]

Cheryl Coon
Forest Botanist

Forest Service
Hoosier National Forest, Brownstown Ranger District

p: 812-276-4773
f: 812-279-3423
ccoon at fs.fed.us<mailto:ccoon at fs.fed.us>

811 Constitution Ave.
Bedford, IN 47421
www.fs.fed.us<http://www.fs.fed.us/>
[USDA Logo]<http://usda.gov/>[Forest Service Twitter]<https://twitter.com/forestservice>[USDA Facebook]<https://www.facebook.com/pages/US-Forest-Service/1431984283714112>

Caring for the land and serving people

From: Vance, Jill [mailto:jvance at dnr.IN.gov]
Sent: Sunday, May 31, 2015 10:47 AM
To: meretsky at indiana.edu<mailto:meretsky at indiana.edu>; Coon, Cheryl R -FS
Subject: Re: The Garlic Monster - Third Year Adults and Beyond.

I can confirm that individual plants can definitely make it to at least their 3rd year - and it wouldn't surprise me to hear about them going beyond that.

Jill Vance, C.I.G. Interpretive Naturalist for Monroe Lake

jvance at dnr.IN.gov<mailto:jvance at dnr.IN.gov>; 812-837-9967 (Paynetown Activity Center)

Official Monroe Lake Website: http://www.stateparks.in.gov/2954.htm

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Memories made naturally... at Indiana State Parks

________________________________
From: Meretsky, Vicky J. <meretsky at indiana.edu<mailto:meretsky at indiana.edu>>
Sent: Thursday, May 28, 2015 6:36 PM
To: Coon, Cheryl R -FS; Vance, Jill
Subject: RE: The Garlic Monster - Third Year Adults and Beyond.

I have seen this same behavior in mullein. Zion National Park had a control program, and one year, in some areas, instead of digging out the roots, they simply wacked off the flowering stalks. The next year, the plants came back like Godzilla. It was nothing short of frightening.
I don’t know if individual plants can hang on for more years, but I wouldn’t be surprised if at least some didn’t make it to at least 4, if thwarted in their reproductive attempts again.
I suspect a fair number of biennials have this kind of a fail-safe mechanism. Natural selection really does favor successful reproduction rather strongly :-)

From: Coon, Cheryl R -FS [mailto:ccoon at fs.fed.us]
Sent: Thursday, May 28, 2015 4:24 PM
To: Meretsky, Vicky J.; Jill Vance (jvance at dnr.in.gov<mailto:jvance at dnr.in.gov>)
Subject: FW: The Garlic Monster - Third Year Adults and Beyond.

Thought you two might know something about this.  Part of discussion with Mid_Atlantic Invasive Plant Group (includes Ohio and east).

[Forest Service Shield]

Cheryl Coon
Forest Botanist

Forest Service
Hoosier National Forest, Brownstown Ranger District

p: 812-276-4773
f: 812-279-3423
ccoon at fs.fed.us<mailto:ccoon at fs.fed.us>

811 Constitution Ave.
Bedford, IN 47421
www.fs.fed.us<http://www.fs.fed.us/>
[USDA Logo]<http://usda.gov/>[Forest Service Twitter]<https://twitter.com/forestservice>[USDA Facebook]<https://www.facebook.com/pages/US-Forest-Service/1431984283714112>

Caring for the land and serving people

From: MAIPC [mailto:maipc-bounces at lists.maipc.org] On Behalf Of Ellis, Michael
Sent: Thursday, May 28, 2015 2:13 PM
To: MA-IPC MA-IPC
Subject: [MAIPC] The Garlic Monster - Third Year Adults and Beyond.

As we begin to wrap up our Garlic Mustard season, I've become fascinated by the resiliency of the species.

I'm seeing tremendous numbers of garlic mustard adults surviving into a third year if their stems were broken off in the year prior. Their wounds simply heal, their roots become massive and they sprout new stems and seeds.

Here is a photo I took today in Beltsville of a specimen that survived our great Garlic Mustard pull of 2014, healed, and re-emerged:

Would this not imply that these plants can come up again, possibly a fourth of fifth year if seeding was unsuccessful?

This has me wondering if plants could bounce back after damage from say, an introduced biological control.

Any thoughts?

Michael Ellis
Non-Native Invasive Plant Specialist
Natural and Historical Resources Division, Park Ranger Office
The Maryland-National Capital Park and Planning Commission
www.pgparks.com<http://www.pgparks.com>

240-429-5042<tel:240-429-5042>

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