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Global Invasive Species Team listserve digest #021
Fri, 5 Feb 1999 19:47:03 -0800 (PST)
--CONTENTS--
1. Wicking Tools
2. Hackberry Control
3. Regarding the Master's Thesis
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1. Wicking Tools
From: Eric Lane (Eric.Lane(at)ag.state.co.us)
This following info was passed to me from one of Colorado's county
weed supervisors:
To my knowledge, the best wick applicators on the market (and they
aren't great) are the "Swipers". They are available from Forestry
Suppliers (pg 149 - 1999 catalogue) (www.forestry-suppliers.com) for
$41.95. They still have a propensity for drippage and they don't hold
up to rough use.
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2. Hackberry Control
From: Douglas Zollner (dzollner(at)tnc.org)
Betsy Lyman: You should have no problem controlling dwarf hackberry with
prescribed fire. Even very low intensity burns will kill most seedlings.
Older trees with developed rootstocks will resprout. You may think you
don't have enough fuel but you should try burning before herbiciding. You
should also burn after herbiciding (the herbiciding should create a fuel
bed) for more complete control if you do go that route.
Douglas
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3. Regarding the Master's Thesis
From: Eric Lane (Eric.Lane(at)ag.state.co.us)
Although I don't have anything on cattails/birds there is a thesis at
Colorado State University on birds and Russian olive by Cat(herine) Brown
I believe from the early 90s. Point counts in various habitats along the
Snake River in ID. There are a couple of papers floating around that
indicate R-o's dense and narrow trunks will not provide suitable habitat
for primary cavity nesters and hence all primary and secondary cavity
nesters will be driven from riparian areas that are infested.
Other research has come from Montana regarding the alteration of elk
foraging and migration patterns due to spotted knapweed; one hears about
the effects of purple loosestrife on duck habitat frequently enough that
there must be some research out there; the tamarix/SW willow
flyercatcher debate may have sparked some research to answer the crucial
question of productivity; a recent citation in Science News Ocober 17
'98 was passed on to me that indicates hummingbirds are being trapped
and killed by common burdock.
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