[APWG] Update on Invasive Notes: Invasive Bamboo Wars Heat Up

[Marc Imlay]

Bamboo Control with native  American pokeweed


Anacostia Watershed Society treated a bamboo patch at Magruder Woods in
Hyattsville, Maryland, several years ago. Next year all the bamboo was still
dead. However, the following year the patch was covered with new bamboo
shoots. Last year and the year before I observed that the bamboo was gone.
At the Fall conference of the Maryland Native Plant Society in Towson,
Maryland, on September 29, 2012 I asked Jorge Bogantes with AWS how they did
this. He told me that they successfully used native American Pokeweed ,
Phytolacca americana. AWS found out that about 5% of the bamboo was not
killed by the pokeweed and had to be cut down.



I suggest we experiment this year with controlling bamboo patches we have
cut down this year with pokeweed. We can go out soon to the open space
habitats where we are controlling bamboo and identify which ones have
pokeweed? Then we can treat half of the patches but leave the other half
alone and see if resurgent pokeweed outcompetes the bamboo. The bamboo may
or may not need one year foliar treatment for the pokeweed to work the mext
year.  If American Pokeweed works, one reseach question is if it works by
being  alleopathic or by providing shade over the bamboo, or a combination
of both.  The poke weed can be applied at different times of the year in a
variety of ways as part of the experiment. One individual with the Maryland
Native Plant Society is planning to apply seeds this winter. Another
research methodolgy issue is how open the bamboo habitat needs to be for the
poke weed to work.



Marc Imlay, PhD,
Conservation biologist, Park Ranger Office
(301) 442-5657 cell
 ialm at erols.com
Natural and Historical Resources Division
The  Maryland-National   Capital   Park  and Planning Commission
www.pgparks.com




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From: Jorge Bogantes Montero [ <mailto:jmontero at anacostiaws.org>
mailto:jmontero at anacostiaws.org]
Sent: Friday, October 05, 2012 11:00 AM
To: Marc Imlay
Cc: Sheila Salo; Craig Tupper; Cynthia Robinson; Dan Smith; Dave & Casey
Kneipp; Dave Rapp; Laila Riazi; Marian Dombroski; Matt T. Salo; Michael
Callahan; RJ Eldridge; Marc.Imlay at mncppc.microsoftonline.com
Subject: Re: WMATA invasives contact?

Hi Marc,


After I sprayed the bamboo we planted trees and then noticed a resurgence of
pokeweed which I know is weedy. So I just left it alone and it actually
inhibited the bamboo from massively regrowing. I know I just have to control
(with machetes) of the shoots that have made it to grow tall.


In some cases nature can help you if you know how to play with it.
Especially the aggresive native plants ;)


Thanks,

Jorge

Sent from my iPhone


On Oct 5, 2012, at 6:22 AM, Marc Imlay <ialm at erols.com> wrote:

I can come late in October for the bamboo. Anacostia Watershed Society
spread out the native poke weed over bamboo that had come back after being
treated a year or two before at Magruder Woods. It outcompeted most of the
shoots. We may want to try this as an experiment in the Spring for any that
survive the spraying. Jorge, would you like to describe and share this poke
weed project?



Marc Imlay, PhD,
Conservation biologist, Park Ranger Office
(301) 442-5657 cell
 ialm at erols.com
Natural and Historical Resources Division
The  Maryland-National   Capital   Park  and Planning Commission
www.pgparks.com







-----Original Message-----
From: john peter thompson [ <mailto:ipetrus at msn.com> mailto:ipetrus at msn.com]
Sent: Wednesday, October 17, 2012 8:53 AM

 <http://ipetrus.blogspot.com/2012/10/invasive-bamboo-wars-heat-up.html>
http://ipetrus.blogspot.com/2012/10/invasive-bamboo-wars-heat-up.html


As I have been saying for about 20 years now, the result of a concerted
attack on any effective national policy will be the rise of a fragmented
mosaic of mini policies and here they come

There is a substantial private property liability case embedded in this.
Insurance companies have banded together to fight the lone woman leading the
charge who is pleading her case successfully so far without a lawyer. The
insurance companies have been repeatedly reprimanded by the judge for their
unprofessional and actions that may be subject to contept citations from the
bench in the case. At one point the judge threatened to have the CEOs of
three insurance companies digging bamboo personally if their lawyers did not
stop their attempts to run rough shod over the legal propcess

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