Week 11 Notes
Week 11 Notes 4616 - HORT 102
Popular in Intro to Cultivated Plants
Popular in Agricultural & Resource Econ
This 2 page Class Notes was uploaded by Irene A. on Monday March 23, 2015. The Class Notes belongs to 4616 - HORT 102 at Washington State University taught by Michael Pumphrey in Winter2015. Since its upload, it has received 44 views. For similar materials see Intro to Cultivated Plants in Agricultural & Resource Econ at Washington State University.
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Date Created: 03/23/15
HORT 102 WEEK 11 NOTES Lecture 20 Weed Biology and Management A plant that is competitive invasive persistent pernicious interferes with intended land use 0 Weed characteristics 0 widely adapted rapid emergence and growth quick reproduction produces lots of seeds wide seed dispersal 0 many dormant seeds 0 Weed classi cation 0 native vs invasiveintroduced I most weeds are not native monocots vs dicots annuals biennials perennials I best to stop weeds when they39re youngsmall I Vegetative Reproduction O tubers O bulbs O rooting at nodes 0 Weed Management Strategies 0 O O O CO I avoid establishment I regulation I quarantine I sanitation I preventing seed production I hand pullinghoeing I tillage I mowing I mulches I fire I ood I rotation I cover crops 0 nutrient scavenging during winter weed suppression I planting dates I water amp fertilizer management I allelopathy I animals I insects I diseases I selectivity I placement I timing I mode of action I spectrum of activity 0 Integrated Weed Management 0 combining two or more weed management strategies 0 consider I climate I soil factors I surrounding vegetation I weed biology O Stale seedbed allowing weed seeds to germinate then killing them prior to planting crops 0 Annuals with bark mulch high density planting of annuals w bark mulch 0 Thresholds for initiating control 0 identifying weeds 0 site specifics O combination of factors
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