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Rich Braman
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<p>The core of the presentation was a three-step process for selecting herbicides: determine what is labeled and safe for the target ornamental, identify the primary and secondary weed species, and combine those into a year-round rotation using different modes of action. Marble walked through a detailed example using container-grown gardenia, narrowing granular pre-emergent options using the 2017 Southeast Pest Control Guide's efficacy and safety charts, then building a seasonal rotation targeting spotted spurge and eclipta in warm months and bittercress, annual bluegrass, and oxalis in cool months. He presented research showing that combining pre-emergent herbicides like Specticle or SureGuard with post-emergence treatments reduced total herbicide use by 40 to 60 percent and costs by up to 30 percent compared to post-only programs. Marble also reviewed post-emergence alternatives to glyphosate — including glufosinate, acetic acid products, and other desiccant-type herbicides — noting that while they provide fast initial burndown, most require follow-up applications for lasting control. He concluded by highlighting underutilized selective options such as graminicides for grass control in ornamental beds and products like Basagran, Lontrel, and Certainty for sedge and broadleaf management.</p>
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<hr />
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<h2 id="youtube-timestamps">YOUTUBE TIMESTAMPS<a class="headerlink" href="#youtube-timestamps" title="Permanent link">¶</a></h2>
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<p>0:00 Introduction and Speaker Credentials
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0:58 Overview: Weed Control in Nurseries and Landscapes
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1:36 Why Herbicides Fail: Calibration and Application
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4:34 Calibration Tools and Mixing Calculators
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6:35 Pre-emergent Herbicide Timing
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8:20 Avoiding Plant Injury During Application
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9:29 SureGuard Holly Trial: New Growth vs. Hardened Foliage
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10:42 Post-emergence Herbicide Timing
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11:30 Environmental Factors Affecting Efficacy
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13:18 Stressed Weeds and Mowing Impacts
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14:28 Ranking Factors That Impact Post-emergence Performance
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15:38 Importance of Developing a Program, Not Just Products
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17:17 Herbicide Rotation and Resistance Prevention
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18:48 Three Steps to Choosing Herbicides
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19:17 Pre-emergence Options Color-Coded by Mode of Action
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20:48 The 2017 Southeast Pest Control Guide
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21:00 Step 1 Example: Labeled Options for Container-Grown Gardenia
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22:02 Grouping Herbicides by Mode of Action
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23:01 Step 2: Targeting Primary and Secondary Weed Species
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25:20 Step 3: Building a Year-Round Rotation
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27:03 Year-Round Nursery Rotation Plan by Month
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27:34 Research: Pre-emergent + Post-emergent vs. Post-Only Programs
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30:44 Cost Savings and Herbicide Reduction Results
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31:55 Application Interval Considerations
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32:09 Landscape-Specific Rotation Planning
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33:52 Timing Examples: One, Two, or Three Applications Per Year
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35:20 Generic Landscape Rotation Example by Season
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37:01 Post-emergence Alternatives to Glyphosate in Landscape Beds
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38:08 Glufosinate (Finale/Cheetah) as an Alternative
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38:43 Non-Selective Alternatives: Desiccant-Type Herbicides
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40:12 Acetic Acid Trial: Burndown and Recovery Results
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42:23 Selective Post-emergence Options for Landscape Beds
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43:04 Graminicides: Underutilized Grass-Selective Herbicides
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43:55 Basagran, Lontrel, Certainty, and Scepter
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44:44 UF Mid-Florida REC Resources and Contact Information
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45:52 Q&A: Signal Words and PPE Requirements
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48:02 Q&A: Wind Drift and Reducing Spray Drift
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49:08 Q&A: Marengo for Nursery Gravel Areas</p>
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<table>
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<thead>
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<tr>
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<th>Timestamp</th>
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<th>Topic</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>0:00</td>
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<td>Introduction and Speaker Credentials</td>
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</tr>
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<tr>
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<td>0:58</td>
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<td>Overview: Weed Control in Nurseries and Landscapes</td>
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</tr>
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<tr>
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<td>1:36</td>
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<td>Why Herbicides Fail: Calibration and Application</td>
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</tr>
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<tr>
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<td>4:34</td>
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<td>Calibration Tools and Mixing Calculators</td>
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</tr>
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<tr>
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<td>6:35</td>
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<td>Pre-emergent Herbicide Timing</td>
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</tr>
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<tr>
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<td>8:20</td>
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<td>Avoiding Plant Injury During Application</td>
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</tr>
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<tr>
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<td>9:29</td>
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<td>SureGuard Holly Trial: New Growth vs. Hardened Foliage</td>
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</tr>
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<tr>
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<td>10:42</td>
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<td>Post-emergence Herbicide Timing</td>
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</tr>
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<tr>
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<td>11:30</td>
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<td>Environmental Factors Affecting Efficacy</td>
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</tr>
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<tr>
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<td>13:18</td>
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<td>Stressed Weeds and Mowing Impacts</td>
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</tr>
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<tr>
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<td>14:28</td>
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<td>Ranking Factors That Impact Post-emergence Performance</td>
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</tr>
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<tr>
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<td>15:38</td>
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<td>Importance of Developing a Program, Not Just Products</td>
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</tr>
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<tr>
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<td>17:17</td>
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<td>Herbicide Rotation and Resistance Prevention</td>
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</tr>
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<tr>
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<td>18:48</td>
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<td>Three Steps to Choosing Herbicides</td>
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</tr>
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<tr>
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<td>19:17</td>
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<td>Pre-emergence Options Color-Coded by Mode of Action</td>
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</tr>
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<tr>
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<td>20:48</td>
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<td>The 2017 Southeast Pest Control Guide</td>
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</tr>
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<tr>
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<td>21:00</td>
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<td>Step 1 Example: Labeled Options for Container-Grown Gardenia</td>
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</tr>
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<tr>
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<td>22:02</td>
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<td>Grouping Herbicides by Mode of Action</td>
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</tr>
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<tr>
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<td>23:01</td>
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<td>Step 2: Targeting Primary and Secondary Weed Species</td>
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</tr>
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<tr>
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<td>25:20</td>
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<td>Step 3: Building a Year-Round Rotation</td>
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</tr>
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<tr>
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<td>27:03</td>
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<td>Year-Round Nursery Rotation Plan by Month</td>
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</tr>
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<tr>
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<td>27:34</td>
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<td>Research: Pre-emergent + Post-emergent vs. Post-Only Programs</td>
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</tr>
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<tr>
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<td>30:44</td>
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<td>Cost Savings and Herbicide Reduction Results</td>
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</tr>
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<tr>
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<td>31:55</td>
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<td>Application Interval Considerations</td>
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</tr>
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<tr>
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<td>32:09</td>
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<td>Landscape-Specific Rotation Planning</td>
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</tr>
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<tr>
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<td>33:52</td>
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<td>Timing Examples: One, Two, or Three Applications Per Year</td>
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</tr>
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<tr>
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<td>35:20</td>
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<td>Generic Landscape Rotation Example by Season</td>
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</tr>
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<tr>
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<td>37:01</td>
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<td>Post-emergence Alternatives to Glyphosate in Landscape Beds</td>
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</tr>
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<tr>
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<td>38:08</td>
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<td>Glufosinate (Finale/Cheetah) as an Alternative</td>
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</tr>
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<tr>
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<td>38:43</td>
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<td>Non-Selective Alternatives: Desiccant-Type Herbicides</td>
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</tr>
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<tr>
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<td>40:12</td>
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<td>Acetic Acid Trial: Burndown and Recovery Results</td>
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</tr>
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<tr>
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<td>42:23</td>
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<td>Selective Post-emergence Options for Landscape Beds</td>
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</tr>
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<tr>
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<td>43:04</td>
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<td>Graminicides: Underutilized Grass-Selective Herbicides</td>
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</tr>
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<tr>
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<td>43:55</td>
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<td>Basagran, Lontrel, Certainty, and Scepter</td>
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</tr>
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<tr>
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<td>44:44</td>
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<td>UF Mid-Florida REC Resources and Contact Information</td>
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</tr>
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<tr>
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<td>45:52</td>
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<td>Q&A: Signal Words and PPE Requirements</td>
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</tr>
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<tr>
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<td>48:02</td>
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<td>Q&A: Wind Drift and Reducing Spray Drift</td>
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</tr>
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<tr>
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<td>49:08</td>
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<td>Q&A: Marengo for Nursery Gravel Areas</td>
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</tr>
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</tbody>
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</table>
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<hr />
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<h2 id="questions-answers">QUESTIONS & ANSWERS<a class="headerlink" href="#questions-answers" title="Permanent link">¶</a></h2>
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<p><strong>Q: What is the number one reason herbicides fail to provide expected weed control or cause plant injury?</strong>
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