Proceedings of the Sixty-first Annual Meeting of the Northeastern ...

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140 ABSTRACTS AND BIOGRAPHIES FOR PRESENTATIONS AT THE 7 TH ANNUAL CONFERENCE OF THE NORTHEAST AQUATIC PLANT MANAGEMENT SOCIETY 4-5 JANUARY 2006 WESTIN PROVIDENCE PROVIDENCE, RHODE ISLAND Abstracts and biographies are listed in order of presentation at the conference. 122
141 EVALUATION OF REGISTERED AND EUP HERBICIDES FOR CONTROL OF VARIABLE MILFOIL. M.D. Netherland, U.S. Army Engineer Research and Development Center, Univ. of Florida Center for Aquatic and Invasive Plants, Gainesville. ABSTRACT Variable milfoil (Myriophyllum heterophyllum Michx.) is considered invasive in the Northeast US, and resource managers have expressed an interest in determining the aquatic herbicides that are most effective in controlling both pioneer and established infestations of the plant. We have initiated laboratory and mesocosm evaluations of 7 registered active ingredients (carfentrazone, copper, diquat, endothall, fluridone, triclopyr, and 2,4-D), and two acetolactate synthase (ALS) inhibitors that have recently received Experimental Use Permits in aquatics (imazamox and penoxsulam). Contact herbicide evaluations have focused on developing concentration and exposure time (CET) relationships, evaluations of 2,4-D and triclopyr have focused on CET relationships, response to formulation, and minimum rates required to achieve plant control. Fluridone and the ALS inhibitors have been evaluated to determine the minimum concentrations necessary to inhibit growth and pigment production. Preliminary results suggest that low doses (100 to 400 ppb) and extended exposures (7 to 21 days) of 2,4-D and triclopyr can be highly effective for control of variable milfoil. These treatments proved more effective than high dose (2 to 3 ppm) and shorter-term exposures (6 to 18 hours). Variable milfoil also tends to be quite susceptible to fluridone and the ALS inhibitors at rates in the range of 8 to 20 ppb. As with other nuisance plants, extended exposures of 60 to 100+ days to these concentrations will be necessary to provide control. In addition, studies suggest the phenology of variable milfoil will require that these treatments be applied early in the season prior to or just as the plants start to come out of winter dormancy. Contact herbicide evaluations are ongoing and will be reported at the meeting. ---------- Mike Netherland is a Research Biologist for the US Army Engineer Research and Development Center. He is located at the University of Florida Center for Aquatic and Invasive Plants and is a courtesy Associate Professor in the Department of Agronomy. Dr. Netherland received an M.S. in Botany and Plant Pathology from Purdue University and his Ph.D. in Agronomy from the University of Florida. His dissertation topic evaluated the response of hydrilla tubers to various forms of management. From 1998 to 2003 Mike was employed by the SePRO Corporation as the Research Director for Aquatics. Both public and private sector research has focused on the response of exotic and native submersed plants to experimental and EPA registered herbicides. Dr. Netherland has worked with Myriophyllum spp. since 1988, and has conducted extensive research at the laboratory, mesocosm, and field-scale evaluating various control methods. 123
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1 Proceedings of the Sixty-first An
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3 NORTHEASTERN WEED SCIENCE SOCIETY
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5 SECTION CHAIRS Agronomy Chair: J.
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7 CARFENTRAZONE AND QUINCLORAC FOR
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9 THE EFFICACY AND CROP TOLERANCE O
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11 EVALUATION OF HERBICIDES FOR CON
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13 BEING HEARD BY THE IR-4 PROJECT.
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15 ABSTRACTS FROM THE 7 TH CONFEREN
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17 HERBICIDE NAMES: COMMON, TRADE,
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20 INTEGRATING WEED CONTROL STRATEG
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22 GIANT HOGWEED ERADICATION IN PEN
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24 EFFECTS OF EMERGENCE PERIODICITY
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26 PRODUCER AND PRODUCTION IMPACTS
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28 A SIMPLE METHOD FOR CLEANING TUF
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30 EMERGENCE AND PERFORMANCE OF TWO
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32 CARFENTRAZONE AND QUINCLORAC FOR
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34 2006 NEWSS SUMMER WEED CONTEST R
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36 INVASIVE AQUATIC WEEDS IN NORTH
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38 AMMONIUM PELARGONATE AS A BIOHER
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40 TRINEXAPAC-ETHYL INFLUENCES EFFI
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42 Table 1. Insect feeding damage,
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44 WEED CONTROL WITH TOPRAMEZONE PR
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46 ROTARY HOE EFFICACY IN CORN: INF
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48 ALFALFA/GRASS FORAGE MIXTURES US
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50 CONTROL OF NEW WEED SPECIES IN T
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52 Table 1. Results of 2006 contain
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54 TOLERANCES OF ORNAMENTAL SHRUBS
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56 2006 WEED MANAGEMENT TRIALS IN C
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58 THE RESPONSE OF FIELD AND CONTAI
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60 THE EFFICACY AND CROP TOLERANCE
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62 Table 2. Plant quality ratings o
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64 EVALUATION OF PROLINE-LINKED PEN
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66 ANNUAL BLUEGRASS AND DOLLAR SPOT
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68 Table 1. Autumn 2005 versus spri
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70 A PRELIMINARY STUDY OF THE NON-N
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72 native species, covering and smo
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74 EFFECTS OF BUCKWHEAT RESIDUE ON
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76 Japanese knotweed control 28 DAT
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78 ENHANCED TOLERANCE TO WEED COMPE
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80 EFFECTS OF PLANTING AND TERMINAT
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82 A UNIFYING FRAMEWORK FOR SPECIES
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84 BIOLOGY OF MULTIFLORA ROSE: AN I
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86 AN OUNCE OF PREVENTION. M.J. Van
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88 HERBICIDE COMPARISON IN WET BLAD
Page 90 and 91: 90 Table 1. Morrow's honeysuckle (L
Page 92 and 93: 92 EVALUATION OF HERBICIDES FOR CON
Page 94 and 95: 94 EVALUATION OF HERBICIDES FOR CON
Page 96 and 97: 96 HOT WATER SYSTEMS FOR VEGETATION
Page 98 and 99: 98 SEEDHEAD SUPPRESSION OF ANNUAL B
Page 100 and 101: 100 ROUGHSTALK BLUEGRASS CONTROL WI
Page 102 and 103: 102 EFFECT OF DEW AND GRANULAR FORM
Page 104 and 105: 104 USE OF TRICLOPYR TO REDUCE ANTI
Page 106 and 107: 106 YELLOW NUTSEDGE CONTROL WITH SU
Page 108 and 109: 108 PRE AND POST EMERGENT ANNUAL BL
Page 110 and 111: 110 PUMPKIN RESPONSE TO HALOSUFSULF
Page 112 and 113: 112 Figure 1. Grass cover following
Page 114 and 115: 114 CHEMICAL CONTROL OF APPLE ROOT
Page 116 and 117: 116 STRAWBERRY PLANTING YEAR WEED C
Page 118 and 119: 118 WEED CONTROL IN NO-TILL PUMPKIN
Page 120 and 121: 120 NATURAL PRODUCT POTENTIAL FOR W
Page 122 and 123: 122 THE IR-4 PROJECT: UPDATE ON HER
Page 124 and 125: 124 PEDIGREE OF A PESTICIDE. D.R. S
Page 126 and 127: 126 SEEDHEAD SUPPRESSION OF ANNUAL
Page 128 and 129: 128 APPLICATIONS FOR SULFENTRAZONE
Page 130 and 131: 130 HORSEWEED: FROM OBSCURITY TO TH
Page 132 and 133: 132 RECENT FINDINGS ON THE FIELD BE
Page 134 and 135: 134 HORSEWEED RESPONSE TO NO-TILL P
Page 136 and 137: 136 THE MASSACHUSETTS EXAMPLE: ONE
Page 138 and 139: 138 Supplemental NEWSS Abstracts (p
Page 142 and 143: 142 EVALUATION OF AN HERBICIDE APPL
Page 144 and 145: 144 ALUMINUM TREATMENT FOR PHOSPHOR
Page 146 and 147: 146 BIOLOGICAL CONTROL OF AQUATIC W
Page 148 and 149: 148 THE 2002 FARM BILL AND ITS EFFE
Page 150 and 151: 150 LAND USE PRACTICE IMPACTS ON NO
Page 152 and 153: 152 A NEW STANDARD FOR DEFINING AQU
Page 154 and 155: 154 PORTRAIT OF THE HEALTH STATUS O
Page 156 and 157: 156 TEN YEARS OF VARIABLE WATER MIL
Page 158 and 159: 158 Northeastern Weed Science Socie
Page 160 and 161: 160 meeting attendance numbers have
Page 162 and 163: 162 members or to members of the Ex
Page 164 and 165: 164 primary areas that had increase
Page 166 and 167: 166 1 st place: Evaluation of Kentu
Page 168 and 169: 168 d) Resolutions Committee Appoin
Page 170 and 171: 170 2005, Hilary Sandler and Brent
Page 172 and 173: 172 (Ornamentals), Rakesh Chandran
Page 174 and 175: 174 Total Expenses $38,227.24 Total
Page 176 and 177: 176 PUBLIC RELATIONS Brent Lackey A
Page 178 and 179: 178 • 2 nd place team: Guelph tea
Page 180 and 181: 180 WSSA REPRESENTATIVE Jeffrey Der
Page 182 and 183: 182 b. Legislative Visits training
Page 184 and 185: 184 b. Selection of a WSSA Member f
Page 186 and 187: 186 WSSA Provides Comments to the C
Page 188 and 189: 188 $179 million, in contrast to a
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190 NEWSS PAST PRESIDENTS Gilbert H
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192 1986 John R. Havis University o
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194 DISTINGUISHED MEMBERS 2002 Brad
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196 1991 1 Elizabeth Maynard Cornel
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198 COLLEGIATE WEED CONTEST WINNERS
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200 1996 - Penn State Agronomy Farm
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202 RESEARCH POSTER AWARDS 1983 1.
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204 1998 1. Weed Control Studies wi
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206 INNOVATOR OF THE YEAR 1986 Nath
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208 1960 The Influence of Cultivati
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210 1975 1. Control of Jimsonweed a
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212 1985 1. Peach Response to Sever
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214 Chris Benedict Cornell Universi
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216 Robert A. DeWaine Monsanto 505
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218 Robert Hedberg USDA/CSREES Scie
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220 Brian G Lackey Weeds Inc. 250 B
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222 Thomas Molloy University of Mai
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224 John Roy RWC, Inc. PO Box 876 2
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226 John R. Teasdale USDA-ARS Build
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228 HERBICIDE NAMES: COMMON, TRADE,
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230 Common Name Trade Name Chemical
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238 COMMON PRE-PACKAGED HERBICIDES
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240 Trade Name Resolve SG Rhino Rou
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242 COMMON AND CHEMICAL NAMES OF HE
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244 Heck, G.R., 114 Henry, G.M., 15
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246 MAIN SUBJECT INDEX (Herbicides,
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248 glyphosate, 29, 38, 39, 57, 70,
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250 shepherd's purse, 56 s-metolach
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