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

More documents

Recommendations

Info

98 SEEDHEAD SUPPRESSION OF ANNUAL BLUEGRASS ON A PUTTING GREEN IN 2006. M.B. Naedel and J.A. Borger, The Pennsylvania State Univ., University Park. ABSTRACT This study was conducted on a mixed stand of 'Pencross' creeping bentgrass (Agrostis stolonifera) and annual bluegrass (Poa annua) at the Penn State Blue Golf Course in State College, PA. The objective of the study was to evaluate selected growth regulators, with and without adjuvants, for the seedhead suppression of annual bluegrass. This study was a randomized complete block design with three replications, and a plot size of 21 ft 2 . Treatments were applied on April 6 (PRIOR), April 13 (BOOT), and May 6 (3 WAT), 2006, respectively, using a three-foot CO 2 powered boom sprayer calibrated to deliver 40 gpa using one 11004E even tip/flat fan nozzle at 40 psi. Boot stage of the annual bluegrass was observed April 16, 2006. Non treated test areas within the test site revealed approximately 100% coverage of annual bluegrass seedheads. The site was maintained using cultural practices for irrigation, mowing, and fertilization that would be typical for a putting green. The test area was mowed twice with a Toro Triplex, bench set to 0.115", before the April 6, 2006 application of selected materials. During the study the site was fertilized with a Nature Safe 8-3-5 fertilizer at a rate of 1 lb N/1000 ft 2 on May 1, 2006. Turfgrass phytotoxicity was rated five times during the study. The turfgrass phytotoxicity was variable and in some cases lasted for several weeks. On the first rating date, April 24, 2005, turfgrass treated with Embark at 40 oz/A, Embark at 40 oz/A plus MacroSorb Foliar at any rate, Embark at 20 oz/A plus Primo and Proxy applies twice, Embark at 40 oz/A plus ECO-N, Proxy plus Primo plus Trimmit with or without ECO-N (BOOT), any combination of Trimmit and Embark, and Primo (PRIOR) plus Embark at 40 oz/A (BOOT) plus Ferromec (BOOT) was rated less than acceptable for phytotoxicity 7.0. Annual bluegrass seedhead suppression was rated three times during the study. On the last rating date, May 26, 2006, turfgrass treated with Embark at 40 oz/A with and without Ferromec, Embark at 40 oz/A plus MacroSorb Foliar at 8 oz/1000 ft 2 , Embark at 40 oz/A plus MacroSorb Foliar at 4 oz/1000 ft 2 , plus Ferromec, Proxy plus Primo plus ECO-N (BOOT/3 WAT), Embark at 20 oz/A (BOOT) plus Primo plus Proxy (BOOT/3 WAT), Embark at 40 oz/A plus ECO-N, Proxy plus Primo plus Trimmit plus ECO-N, Primo plus Trimmit plus Embark at 40 oz/A with and without ECO-N, Trimmit plus Embark at 40 oz/A with and without ECO-N, Proxy (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), Primo (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), ECO-N (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), and Embark at 40 oz/A plus Signature plus Ferromec had significantly fewer annual bluegrass seedheads than untreated turfgrass and had at least 75% reduction of the seedheads. 80
99 THE EFFECTS OF FERTILIZER ON THE TOLERANCE OF KENTUCKY BLUEGRASS TO BISPYRIBAC-SODIUM HERBICIDE. R.R. Shortell, S.A. Bonos, and S.E. Hart, Rutgers Univ., New Brunswick, NJ. ABSTRACT Kentucky bluegrass (Poa pratensis L.) is a diverse grass species used for turf that has been shown to exhibit a variable response to bispyribac-sodium herbicide, which is commonly used in other cool season turfgrasses for grassy weed control. The objective of this study was to evaluate the effects of nitrogen fertility on the tolerance of Kentucky bluegrass to this herbicide. Two trials were seeded in 2004 and 2005, respectively, at the Rutgers University Plant Science Research Center in Adelphia, NJ. Six cultivars were chosen as exemplars to represent the full range of response to this herbicide. 'Avalanche' and ‘Washington’ were used to represent the susceptible grouping with injury in excess of 80 percent, ‘Midnight’ and ‘Boutique’ were used to represent the moderate grouping with injury of 34 and 38 percent, respectively, and ‘Lakeshore’ and ‘SR 2284’ were chosen for their tolerance to this herbicide showing less then 25 percent injury. Nitrogen treatments were broken into plus or minus one pound nitrogen per 1,000 ft 2 using a homogenous 16-4-8 formulation, applied 4 days before initial herbicide applications. Bispyribac-sodium was applied at two rates (30 g a.i./A followed by 30 g a.i./A, and 60 g a.i./A followed by 60 g a.i./A) using a sequential application spaced 21 days apart in late June. Percent turfgrass injury was rated on a weekly basis and percent ground cover was noted at the completion of the study. Based on the results of this study it appears that the injury of tolerant cultivars is masked by the nitrogen application, injury in moderate cultivars is not significantly affected by the nitrogen application, and injury in the susceptible cultivars is actually increased by the application of nitrogen. The potential exists to safely use bispyribacsodium herbicide on some Kentucky bluegrass cultivars; however future research to determine the mechanisms of this response is warranted. 81
Page 1 and 2:
1 Proceedings of the Sixty-first An
Page 3 and 4:
3 NORTHEASTERN WEED SCIENCE SOCIETY
Page 5 and 6:
5 SECTION CHAIRS Agronomy Chair: J.
Page 7 and 8:
7 CARFENTRAZONE AND QUINCLORAC FOR
Page 9 and 10:
9 THE EFFICACY AND CROP TOLERANCE O
Page 11 and 12:
11 EVALUATION OF HERBICIDES FOR CON
Page 13 and 14:
13 BEING HEARD BY THE IR-4 PROJECT.
Page 15 and 16:
15 ABSTRACTS FROM THE 7 TH CONFEREN
Page 17:
17 HERBICIDE NAMES: COMMON, TRADE,
Page 20 and 21:
20 INTEGRATING WEED CONTROL STRATEG
Page 22 and 23:
22 GIANT HOGWEED ERADICATION IN PEN
Page 24 and 25:
24 EFFECTS OF EMERGENCE PERIODICITY
Page 26 and 27:
26 PRODUCER AND PRODUCTION IMPACTS
Page 28 and 29:
28 A SIMPLE METHOD FOR CLEANING TUF
Page 30 and 31:
30 EMERGENCE AND PERFORMANCE OF TWO
Page 32 and 33:
32 CARFENTRAZONE AND QUINCLORAC FOR
Page 34 and 35:
34 2006 NEWSS SUMMER WEED CONTEST R
Page 36 and 37:
36 INVASIVE AQUATIC WEEDS IN NORTH
Page 38 and 39:
38 AMMONIUM PELARGONATE AS A BIOHER
Page 40 and 41:
40 TRINEXAPAC-ETHYL INFLUENCES EFFI
Page 42 and 43:
42 Table 1. Insect feeding damage,
Page 44 and 45:
44 WEED CONTROL WITH TOPRAMEZONE PR
Page 46 and 47:
46 ROTARY HOE EFFICACY IN CORN: INF
Page 48 and 49: 48 ALFALFA/GRASS FORAGE MIXTURES US
Page 50 and 51: 50 CONTROL OF NEW WEED SPECIES IN T
Page 52 and 53: 52 Table 1. Results of 2006 contain
Page 54 and 55: 54 TOLERANCES OF ORNAMENTAL SHRUBS
Page 56 and 57: 56 2006 WEED MANAGEMENT TRIALS IN C
Page 58 and 59: 58 THE RESPONSE OF FIELD AND CONTAI
Page 60 and 61: 60 THE EFFICACY AND CROP TOLERANCE
Page 62 and 63: 62 Table 2. Plant quality ratings o
Page 64 and 65: 64 EVALUATION OF PROLINE-LINKED PEN
Page 66 and 67: 66 ANNUAL BLUEGRASS AND DOLLAR SPOT
Page 68 and 69: 68 Table 1. Autumn 2005 versus spri
Page 70 and 71: 70 A PRELIMINARY STUDY OF THE NON-N
Page 72 and 73: 72 native species, covering and smo
Page 74 and 75: 74 EFFECTS OF BUCKWHEAT RESIDUE ON
Page 76 and 77: 76 Japanese knotweed control 28 DAT
Page 78 and 79: 78 ENHANCED TOLERANCE TO WEED COMPE
Page 80 and 81: 80 EFFECTS OF PLANTING AND TERMINAT
Page 82 and 83: 82 A UNIFYING FRAMEWORK FOR SPECIES
Page 84 and 85: 84 BIOLOGY OF MULTIFLORA ROSE: AN I
Page 86 and 87: 86 AN OUNCE OF PREVENTION. M.J. Van
Page 88 and 89: 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 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 140 and 141: 140 ABSTRACTS AND BIOGRAPHIES FOR 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
Page 190 and 191:
190 NEWSS PAST PRESIDENTS Gilbert H
Page 192 and 193:
192 1986 John R. Havis University o
Page 194 and 195:
194 DISTINGUISHED MEMBERS 2002 Brad
Page 196 and 197:
196 1991 1 Elizabeth Maynard Cornel
Page 198 and 199:
198 COLLEGIATE WEED CONTEST WINNERS
Page 200 and 201:
200 1996 - Penn State Agronomy Farm
Page 202 and 203:
202 RESEARCH POSTER AWARDS 1983 1.
Page 204 and 205:
204 1998 1. Weed Control Studies wi
Page 206 and 207:
206 INNOVATOR OF THE YEAR 1986 Nath
Page 208 and 209:
208 1960 The Influence of Cultivati
Page 210 and 211:
210 1975 1. Control of Jimsonweed a
Page 212 and 213:
212 1985 1. Peach Response to Sever
Page 214 and 215:
214 Chris Benedict Cornell Universi
Page 216 and 217:
216 Robert A. DeWaine Monsanto 505
Page 218 and 219:
218 Robert Hedberg USDA/CSREES Scie
Page 220 and 221:
220 Brian G Lackey Weeds Inc. 250 B
Page 222 and 223:
222 Thomas Molloy University of Mai
Page 224 and 225:
224 John Roy RWC, Inc. PO Box 876 2
Page 226 and 227:
226 John R. Teasdale USDA-ARS Build
Page 228 and 229:
228 HERBICIDE NAMES: COMMON, TRADE,
Page 230 and 231:
230 Common Name Trade Name Chemical
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
238 COMMON PRE-PACKAGED HERBICIDES
Page 240 and 241:
240 Trade Name Resolve SG Rhino Rou
Page 242 and 243:
242 COMMON AND CHEMICAL NAMES OF HE
Page 244 and 245:
244 Heck, G.R., 114 Henry, G.M., 15
Page 246 and 247:
246 MAIN SUBJECT INDEX (Herbicides,
Page 248 and 249:
248 glyphosate, 29, 38, 39, 57, 70,
Page 250:
250 shepherd's purse, 56 s-metolach
show all

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

Create successful ePaper yourself

Delete template?

Save as template?