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. 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. 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).. Dr. Timothy Grey & Fritz Turpin. Crop and Soil Sciences . Dept. UGA. Troublesome weeds. Grasses. Perennials . Bermuda grass. Bahia. Annuals. Italian ryegrass. Broadleaf weeds. Winter annual – wild radish. 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).. Agriscience . Mr. Bailey. Weeds Around Kentucky!. CREEPING CHARLIE. KY. BLUEGRASS. THISTLE. What is a Weed?. A weed is a plant that grows where it is not wanted. Examples. W. heat growing in an oat field; the wheat is considered a weed. . 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  . Lesson Aims. To study . weeds in the context of competition and how . weedkillers. can affect food webs..  . Learning . outcomes . By the end of the lesson you . should . be able to:. Explain . ?. 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 . 3. of 4 . In. -Person . Educational Module. Learning Objectives. Identify plant species suited for site-specific environmental qualities, pest pressure and use. Identify and describe how to manage common turfgrass weeds. (195 survey responses). . Most Common and Troublesome Weeds in . Broadleaf Crops, Fruits & Vegetables. 1) alfalfa, 2) canola, 3) cotton, 4) fruits & nuts, 5) peanut, 6) pulse crops, 7) soybean, 8) sugarbeets, 9) vegetables- cole crops, greens 10) vegetables- cucurbits, 11) vegetables- fruiting, and 12) vegetables- other. (239 survey responses). . Most Common and Troublesome Weeds in . Aquatic and Non-crop Areas. 1) aquatic: . irrigation & flood control, . 2) aquatic: . lakes, . reservoirs, rivers, 3) aquatic: . ponds, . zles that are designed for the intended application Agriculturallytested with Priority Follow manufacturers label and recommendationsVOIDING SPRAYDRIFTIS THE RESPONSIBILITYOF THE APPLI-CATORai per Weeds are best controlled within the first several weeks after a crop is planted. Herbicides are more effective against smaller weeds. Smaller weeds are less competitive than larger weeds. Maximize profit. (191 survey responses). . Most Common and Troublesome Weeds in . Broadleaf Crops, Fruits & Vegetables. 1) alfalfa, 2) canola, 3) cotton, 4) fruits & nuts, 5) peanut, 6) pulse crops, 7) soybean, 8) sugarbeets, 9) vegetables- cole crops, greens 10) vegetables- cucurbits, 11) vegetables- fruiting, and 12) vegetables- other.