Vol. 54â2000 - NorthEastern Weed Science Society
Vol. 54â2000 - NorthEastern Weed Science Society Vol. 54â2000 - NorthEastern Weed Science Society
Table 1: A partial surveyof receipted herbaceousperennial transplant plugs; their weeds and severity of weed growth. Crop and Weed Strength andRegrowth Potential Crop Crop Weed w"",, WeedGrowth J Crop Estimates Identification Strength' Identification 1 SeverityPriorConcomPost Size em' Loss% Achillea 8 BittercressOxalis ChickweedDandelion Plantain 8 Y Y Y 8 25 Aquilegia 3 Oxalis ChickweedDandelion Clover Plantain 9 Y Y Y 6 65 Aster 5 Bittercress ChickweedDandelion Plantain 4 Y N Y 10 5 Baptisia 5 OxaIis Poa ChickweedDandelion Clover Plantain 1 Y N N 16 0 Campanula 3 Bittercress Oxalis PoaChickweed Clover 8 Y Y Y 4 40 Coreopsis 5 Bittercress OxaIis Poa ChickweedPlantain 5 Y N N 8 10 Delphinium 1 Bittercress Dandelion CloverPlantain 8 Y Y Y 10 25 Digitalis 3 Oxalis Poa ChickweedDandelion 6 Y N N 10 30 Echinacea 1 Bittercress OxaIis Poa Dandelion Clover Plantain 8 Y N Y 12 45 Filipendula 1 Bittercress Oxa1isPoa ChickweedDandelion Clover 2 Y N N 14 20 Geranium 4 Poa ChickweedDandelion Clover Plantain 6 Y N N 16 0 Grasses 1 Oxalis Poa ChickweedDandelion Clover 9 Y N Y 16 10 Hemerocallis 5 Bittercress Oxa1isPoaDandelion Clover Plantain 7 Y Y Y 16 0 Hosta 4 Poa ChickweedDandelion Clover Plantain Clover 8 Y Y Y 16 0 Iris 9 Pea ChickweedDandelion Clover Plantain Clover 6 Y Y Y 20 0 Lavendula 4 Bittercress Oxa1isPoaChickweedDandelion Clover 8 Y Y Y 2 65 Lupinus 8 Bittercress Poa Dandelion CloverPlantain 4 Y N N 8 15 Monarda 8 Poa ChickweedDandelion CloverPlantain 5 Y N N 6 10 Nepeta 2 Bittercress Oxalis Poa ChickweedDandelion Clover 6 Y Y Y 2 75 Phlox 4 BittercressOxaIis PoaDandelion Clover Plantain Clover 6 y N Y 8 65 Creep Phlox 6 Bittercress Oxa1isPoaDandelion Clover Plantain Clover 4 y Y Y 4 35 Rudebeckia 4 PoaChickweedDandelionClover Plantain Clover 3 Y N N 6 25 Salvia 5 Bittercress Oxalis PoaChickweedDandelion Clover 6 Y Y Y 4 55 Thymus 6 Bittercress Oxa1isPoaChickweedDandelion Clover 7 Y Y Y 2 65 Veronica 7 Bittercress OxalisPoaChickweedDandelion Clover 9 Y Y Y 4 75 I Cropstrength estimatedat time of transplant; estimatesbased onrateofregrowth in firstmonthfrom propagationplug;it has no bearing or relevanceto laterplantgrowth habits: i.e. ornamentalgrasses arenotoriouslyslowto resumegrowth yet exhibit rapid growthandattaingreat size later in the season. 'Point of origin or SOW"CCnurseryhas tremendous influenceonoriginal weeds. 'yes( Y)orNo(N)as descriptors of regrowth of weeds priorto. concommitantwith or followingcropregrowthfrom plugs. 24
_u ____ Table2: Estimatesof herbaceousperennialcropandweed leaf size attime of transplant Example:HerbaceousPerennial LeafSize Example:WeedSpecies TunicaDianthusSaginaThymus Ercdium ArabisDianthusTeuchrium Salvia VeronicaScabiosaRueIberis GeumAmsoniaPolemomumPotentilla StokesiaVeronicaPlatycodonKnautia BaptisiaLupinus LychnisOenotheraTrollius EchinaceaEupatoriumPulmonariaSymphytum Digitalis FilipendulaRudebeckiaPrimula HemerocallisIrisBergeniaGrasses HostaDarmeraPetasitesRodergesia I 2 3 4 5 6 1 8 9 to ----- - - ------- Table 3: Handweedtng success or failureas a functionof cropto weed leaf size ratios. Mollugo, StarwOrl Oxalis, Bittercress Chickweed,Mouse-earchickweed Annual, Kentucky Bluegrass Vetch, Crabgrass Dandelion,Clover Hawksweed, Goldenrod BroadleafPlantain Populus,Prunus Petasites C!WRatio Example Crop Crop Success/Failure Crop Weed Size in 1 Loss(#/IO) ------ I / I Tunica Mollugo 4 9 F 1/3 Thymus Chickweed 6 6 F 1/6 Dianthus Dandhon 12 1 S 2/2 Erodium Bittercress 4 to F 2/4 Arabis Ann Bluegrass 4 to F 2/6 Dianthus Clover 16 2 S 2/8 Teuchrium Plantain 8 to S 3/2 Iberis Bittercress 8 8 F 3/3 Veronica Chickweed 14 8 F 3/8 Iberis Plantain 8 3 S 4/4 Amsonia Ann Bluegrass 8 8 F 4/6 Sedum Dandelion 10 4 S 4/8 Polemonium Plantain 14 2 S 6/2 Lupinus Bittercress 16 0 S 6/4 Oenothera Clover 14 4 S 6/6 Trollius Dandelion 10 8 F 6/8 Baptista Plantain 8 7 F 8/1 Digitalis Mollugo 16 0 S 8/2 Bergenia Bittercress 16 0 S 8/4 Filipendula AnnBluegrass 16 0 S 8/6 Primula Hawksweed 14 5 F 8/8 Rudebeckia Plantain 12 10 F 10 /2 Hosta Sedum 16 0 S 10/3 Rodgersia Chickweed 16 0 S 10 /6 Darmera Dandelion 16 0 S 10 /8 Hosta Plantain 16 6 F -- --- - ----------- ------- ---- 25
- Page 1 and 2: WEED REMOVAL TIMING WITH ROUNDUP RE
- Page 3 and 4: EFFECT OF HERBICIDE RATES AND IRRIG
- Page 5 and 6: 40 Effect of Pronone Applied with A
- Page 7 and 8: Comparisonof Sulfosateand Glyphosat
- Page 9 and 10: N 1175 feet Roundup Ready Studies R
- Page 11 and 12: VIRGINIA TECH'S ONLINE WEED IDENTIF
- Page 13 and 14: WEED CONTROL AND YIELD OF CUT FLOWE
- Page 15 and 16: Table I. Effect of napropamide and
- Page 17 and 18: The Effect of Total Postemergence H
- Page 19 and 20: with commercial fertilizer. In gene
- Page 21 and 22: HERBICIDE APPLICATIONS VERSUS HANDW
- Page 23: exceeded 4. The success of training
- Page 27 and 28: DOUBLE CROP CORN WEED CONTROL IN VI
- Page 29 and 30: ANNUAL WEED AND GRASS CONTROL IN CO
- Page 31 and 32: MANAGING QUACKGRASSINFESTATIONSAS C
- Page 33 and 34: USING HERBICIDE RESISTANT HYBRIDS T
- Page 35 and 36: NICOSULFURONIRIMSULFURON COMBINATIO
- Page 37 and 38: GLYPHOSATE ALONE AND PRECEDED BY PR
- Page 39 and 40: ROUNDUPVS. LIBERTY:WHATHAVE WE LEAR
- Page 41 and 42: In summary, application timing for
- Page 43 and 44: INFLUENCE OF TIMING ON WEED MANAGEM
- Page 45 and 46: IMPACT OF GLYPHOSATE TIMING AND COR
- Page 47 and 48: PREEMERGENCE HERBICIDES INFLUENCE W
- Page 49 and 50: COMPARISON OF WEED CONTROL SYSTEMS
- Page 51 and 52: Table I Mean Percent Weed Control V
- Page 53 and 54: SMALL GRAIN WEED CONTROL - NEW WEED
- Page 55 and 56: MODE OF ACTION, ABSORPTION, TRANSLO
- Page 57 and 58: INFLUENCE OF CROWNVETCH WITH AND WI
- Page 59 and 60: lRUMPETCREEPER, HONEYVINEMILKWEED,A
- Page 61 and 62: FLUFENACET PLUS METRIBUZIN PLUS ATR
- Page 63 and 64: CONTROLLING ASTERACEAE WEEDS WITH R
- Page 65 and 66: 0... Figure1. GerminationRateof Roo
- Page 67 and 68: BIOLOGICALLY BASED WEED CONTROL STR
- Page 69 and 70: NON·NATIVE VASCULAR FLORA OF BISCA
- Page 71 and 72: principally in ruderal sites. lawns
- Page 73 and 74: EVALUATION OF AZAFENlDIN FOR PREEME
Table 1: A partial surveyof receipted herbaceousperennial transplant plugs; their weeds and severity of weed growth.<br />
Crop and <strong>Weed</strong> Strength andRegrowth Potential<br />
Crop Crop <strong>Weed</strong> w"",, <strong>Weed</strong>Growth J Crop Estimates<br />
Identification Strength' Identification 1 SeverityPriorConcomPost Size em' Loss%<br />
Achillea 8 BittercressOxalis ChickweedDandelion Plantain 8 Y Y Y 8 25<br />
Aquilegia 3 Oxalis ChickweedDandelion Clover Plantain 9 Y Y Y 6 65<br />
Aster 5 Bittercress ChickweedDandelion Plantain 4 Y N Y 10 5<br />
Baptisia 5 OxaIis Poa ChickweedDandelion Clover Plantain 1 Y N N 16 0<br />
Campanula 3 Bittercress Oxalis PoaChickweed Clover 8 Y Y Y 4 40<br />
Coreopsis 5 Bittercress OxaIis Poa ChickweedPlantain 5 Y N N 8 10<br />
Delphinium 1 Bittercress Dandelion CloverPlantain 8 Y Y Y 10 25<br />
Digitalis 3 Oxalis Poa ChickweedDandelion 6 Y N N 10 30<br />
Echinacea 1 Bittercress OxaIis Poa Dandelion Clover Plantain 8 Y N Y 12 45<br />
Filipendula 1 Bittercress Oxa1isPoa ChickweedDandelion Clover 2 Y N N 14 20<br />
Geranium 4 Poa ChickweedDandelion Clover Plantain 6 Y N N 16 0<br />
Grasses 1 Oxalis Poa ChickweedDandelion Clover 9 Y N Y 16 10<br />
Hemerocallis 5 Bittercress Oxa1isPoaDandelion Clover Plantain 7 Y Y Y 16 0<br />
Hosta 4 Poa ChickweedDandelion Clover Plantain Clover 8 Y Y Y 16 0<br />
Iris 9 Pea ChickweedDandelion Clover Plantain Clover 6 Y Y Y 20 0<br />
Lavendula 4 Bittercress Oxa1isPoaChickweedDandelion Clover 8 Y Y Y 2 65<br />
Lupinus 8 Bittercress Poa Dandelion CloverPlantain 4 Y N N 8 15<br />
Monarda 8 Poa ChickweedDandelion CloverPlantain 5 Y N N 6 10<br />
Nepeta 2 Bittercress Oxalis Poa ChickweedDandelion Clover 6 Y Y Y 2 75<br />
Phlox 4 BittercressOxaIis PoaDandelion Clover Plantain Clover 6 y N Y 8 65<br />
Creep Phlox 6 Bittercress Oxa1isPoaDandelion Clover Plantain Clover 4 y Y Y 4 35<br />
Rudebeckia 4 PoaChickweedDandelionClover Plantain Clover 3 Y N N 6 25<br />
Salvia 5 Bittercress Oxalis PoaChickweedDandelion Clover 6 Y Y Y 4 55<br />
Thymus 6 Bittercress Oxa1isPoaChickweedDandelion Clover 7 Y Y Y 2 65<br />
Veronica 7 Bittercress OxalisPoaChickweedDandelion Clover 9 Y Y Y 4 75<br />
I Cropstrength estimatedat time of transplant; estimatesbased onrateofregrowth in firstmonthfrom propagationplug;it has no<br />
bearing or relevanceto laterplantgrowth habits: i.e. ornamentalgrasses arenotoriouslyslowto resumegrowth yet exhibit rapid<br />
growthandattaingreat size later in the season.<br />
'Point of origin or SOW"CCnurseryhas tremendous influenceonoriginal weeds.<br />
'yes( Y)orNo(N)as descriptors of regrowth of weeds priorto. concommitantwith or followingcropregrowthfrom plugs.<br />
24
Change language