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Types of Weeds 4 Broadleaf 4 Grasses 4 Sedges. Life Cycles 4 Annuals –Summer –Winter 4 Biennials 4 Perennials –Summer –Winter.

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Presentation on theme: "Types of Weeds 4 Broadleaf 4 Grasses 4 Sedges. Life Cycles 4 Annuals –Summer –Winter 4 Biennials 4 Perennials –Summer –Winter."— Presentation transcript:

1 Types of Weeds 4 Broadleaf 4 Grasses 4 Sedges

2 Life Cycles 4 Annuals –Summer –Winter 4 Biennials 4 Perennials –Summer –Winter

3 Broadleaf Weeds

4 Dandelion 4 Perennial 4 Broadleaf

5 Common Chickweed 4 Winter Annual 4 Broadleaf

6 Knotweed 4 Summer Annual 4 Broadleaf

7 Blackland Aster 4 Summer Annual 4 Broadleaf

8 Spotted Spurge 4 Summer Annual 4 Broadleaf

9 Henbit 4 Winter Annual 4 Broadleaf Weed

10 Thistle 4 Winter Annual 4 Broadleaf

11 White Clover 4 Winter Perennial 4 Broadleaf

12 Spurweed (Burweed) 4 Summer Annual 4 Broadleaf

13 Matchweed 4 Summer Perennial 4 Broadleaf

14 Broadleaf, Perennials 4 Postemerge –Hormone-type herbicides

15 Postemergence Broadleaf Weed Control 4 2,4-D AmineDacamine 4D Weedar 64 4 MCPPOrtho Chickweed & Clover Killer 4 DicambaBanvel

16 Postemergence Broadleaf Weed Control 4 2,4-D Amine + MCPP –Chipco Turf Kleen –Ortho Weed-B-Gon Killer –2 Plus 2 4 2,4-D amine + MCPP + Dicamba –Greenlight’s Wipeout Broadleaf Weed Killer –Ortho’s Chickweed, Spruge & Oxalis Killer –Gordon’s Trimec –Lesco’s Three Way

17 Growth Regulators 4 Generally applied postemergence 4 for broadleaf weed control 4 Symptoms (leaf curling, stem twisting) occur very quickly 4 Generally short residual activity in soil 4 Systemically translocated in susceptible plants Upset the normal hormone balance in susceptible plants, causing a disruption of several plant processes, i.e. cell enlargement and division, protein synthesis, respiration Example: 2,4-D, MCPA, MCPP, dicamba

18 Weed Control in Dormant Bermudagrass 4 Roundup 4 Sencor

19 Postemergent Weed Control 4 Young, actively growing weeds 4 Climatic conditions 4 Low volume spray applications 4 Addition of a surfactant

20 Preemergent Broadleaf Control 4 Gallery 4 Snapshot (Gallery + Surflan)


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