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The Global Invasive Species Team | |
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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 --------------------------------------- 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. --------------------------------------- 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 --------------------------------------- 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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