PPT-Weeds

By Casey Day How Weeds Spread How to Kill them Other Interesting Facts Annual bluegrass Likes moist areas Leaf blades that are crinkled part way down are one way to identify the Annual Bluegrass. Developed by: . Susan Donaldson. University of Nevada Cooperative Extension. UNCE, Reno, Nev.. Topics to be covered. What is a weed?. Why worry about weeds?. How weeds are regulated?. Weed biology. Factors that lead to plant invasion. Jeffrey . Derr. Professor of Weed Science. Virginia . Tech. Charlottesville VVA talk 1/30/14. 2014 Pest Management Guides. Horticultural and Forest Crops. . http://. pubs.ext.vt.edu/456/456-017/456-017.html. Lesson 1. The copyright in these Weed Science Society of America (WSSA) training lessons is owned by the WSSA. WSSA grants you a limited license to use these materials solely for training and educational purposes. Slides may be used individually, and their order of use may be changed; however, the content of each slide and the associated narrative may not be altered. If you have questions, please contact Joyce Lancaster at (jlancaster@allenpress.com) and phone (785-865-9250).. Preparing . African Rice Farmers Against Parasitic Weeds in a Changing Environment. . F. unded by:. . The . Netherlands Organisation for Scientific Research, Science for Global Development . (. NWO-WOTRO). Washington’s noxious weeds are invasive exotic introductions. None of them are native to Washington. Noxious weeds create public health hazards, lower property values, reduce enjoyment o Matthew 13:24-30. Matthew 13:36-43. Matthew 13:24-30. Jesus told them another parable: “The kingdom of heaven is like a man who sowed good seed in his field. . But . while everyone was sleeping, his enemy came and sowed . For some weeds, remote sensing may provide a cheaper, more efficient method of mapping infestations than ground surveys. However, many weeds are not good targets for remote indistinguishable from othe Identification and Management . Sasha Shaw. King County Noxious Weed Control Program. www.kingcounty.gov/weeds. . Courtesy of Sasha Shaw, King County Noxious Weed Control Program. Agenda. Brief review of definitions, lists and impacts. Know your Weeds. ID your weeds in your field. Be sure you want to get rid of it. They do have a role:. Holding water. Creating organic matter. Providing cover. Habitat for beneficial insects. “Weeds are plant we have not yet found a use for.”. Micheal D. K. Owen. Iowa State University. Ames, IA 50011 USA. mdowen@iastate.edu. www.weeds.iastate.edu. Herbicide resistance = . superweeds. ?. While this “description” draws considerable attention (i.e. NY Times), it is clearly incorrect and inappropriate!. ?. thorns. toxicity. release substances that trap insects. dense leaf hairs reduces transpiration.. Why are these characteristics important when controlling weeds? . Examples: . Thorns . make it hard to . Lesson 2: Weed Control Strategies. After completing this Lesson, you have learned to answer:. When the first schedule for weed control activity in . chili. pepper should . start? . How pre-sowing rainfall or irrigation helps in better weed control in . Lesson 1: Weeds and Weed Competition in Chili Pepper. Unit 2: Weeds in Chili Pepper. After completing . Units . in this Lesson, you have learned to answer:. Why weed control is important in . chili crop. Module IX: Weeds and Weed Control Lesson 1: Weeds and Weed Competition in Chili Pepper Unit 3: Striga After completing Units in this Lesson, you have learned to answer: 1. What is Striga