Proceedings of the Sixty-first Annual Meeting of the Northeastern ...
Proceedings of the Sixty-first Annual Meeting of the Northeastern ... Proceedings of the Sixty-first Annual Meeting of the Northeastern ...
72 native species, covering and smothering them. Eragrosits curvula has become well established along sandy roadsides, especially at Cape Henlopen where it out competes native species and forms nearly pure stands. Phragmites australis was well established at wet sites, especially along the shores of Assawomen Bay. University of Maryland scientists have identified 5 non-native varieties of Phragmites. These are more aggressive than the single native North American variety. Additional aggressive non-native species are Carex kobomugi, Elaeagnus angustifolia, E. umbellata, and Lythrum salicaria. Carex kobomugi is well established locally on coastal dunes, especially on the ocean-facing primary dune where wind deposits salt on vegetation. When conditions are favorable C. kobomugi forms nearly pure stands. Carex kobomugi has been reported in the coastal dunes at Sandy Hook, New Jersey, by Stalter in l975. In his l980 publication, Stalter presented historical invasion information of C. kobomugi on the Untied States east coast. Carex kobomugi may have been present at Island Beach State park, New Jersey in the l920's. It was reported at Virginia Beach, Virginia in l949, and at the public beach at Norfolk in 1966. It was also reported at Cedar Island, Virginia in l979 and at Fisherman Island, Virginia in the l970's. Stalter and Lamont (unpublished) have observed C. kobomugi on the ocean - facing side of the primary dunes at Back Bay National Wildlife Refuge and False Cape State Park in southeast Virginia in the l990's. Elaeagnus spp., Russian Olive, generally occupies grassy fields. Elaeagnus angustifolia is common at Cape Henlopen State Park.. Selective cutting followed by the application of herbicide to cut stems should kill Elaeagnus and may prevent this shrub from dominating fields at Delaware’s coastal parks. Lythrum salicaria was present in small numbers at the moist interdunal swales at Fenwick Island, State Park. Populations of L. salicaria should be treated with herbicide and eradicated. If not treated, L. salicaria may become more abundant at moist habitats in the future, and pose a threat to the native vascular plant species that grow there. LITERATURE CITED 1. Garwood, A. N. 1996. Weather America Milpitas, California 217-223. 2. Gleason, H. A. and A. Cronquist, 1991. Manual of Vascular plants of Northeastern United States and Adjacent Canada. New York Botanical Garden, New York. 910 pp. 3. Bailey L. H., 1949. Manual of Cultivated Plants. Macmillan, New York. 1116 pp. 4. McAvoy, W.A. and K.A. Bennett. 2001. The Flora of Delaware. An annotated checklist. Delaware Heritage Program, Smryna, Delaware. 265 pp. 5. Stalter, R. l980. Carex kobomugi Ohwi at Sand Hook, New Jersey. Bull. Torrey Bot. Club 107:431-432. 54
73 Table 1. A preliminary summary of the native and non-native vascular plant species at 3 coastal Delaware State Parks. Feen Ferns Gymnosperms Dicots Monocots Total Allies Families 1 6 2 70 13 92 Genera 1 6 2 155 56 220 Species 1 7 5 213 109 335 Introduced Species 0 0 1 55 17 73 Native-Species 1 7 4 158 92 263 Table 2. Plant families with large numbers of non-native vascular plant species and families exclusively composed of non-native species. Family Number of Alien Taxa Percent Alien Taxa Asteraceae 11/39 28 Commelinaceae 1/1 100 Elaeagnaceae 2/2 100 Liliaceae 3/3 100 Molluginaceae 1/1 100 Oleaceae 1/1 100 Poaceae 13/43 30 Table 3. A list of aggression or potentially aggressive non-native vascular plant species at 3 coastal Delaware state parks: Cape Henlopen, Delaware Seashore and Fenwick Island. Species Carex kobomugi Celastrus orbiculatus Elaeagnus species Eragrustis curvula Lythrum salicaria Phragmites australis 55
- 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 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 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
73<br />
Table 1. A preliminary summary <strong>of</strong> <strong>the</strong> native and non-native vascular plant species<br />
at 3 coastal Delaware State Parks.<br />
Feen Ferns Gymnosperms Dicots Monocots Total<br />
Allies<br />
Families 1 6 2 70 13 92<br />
Genera 1 6 2 155 56 220<br />
Species 1 7 5 213 109 335<br />
Introduced Species 0 0 1 55 17 73<br />
Native-Species 1 7 4 158 92 263<br />
Table 2. Plant families with large numbers <strong>of</strong> non-native vascular plant species and<br />
families exclusively composed <strong>of</strong> non-native species.<br />
Family Number <strong>of</strong> Alien Taxa Percent Alien Taxa<br />
Asteraceae 11/39 28<br />
Commelinaceae 1/1 100<br />
Elaeagnaceae 2/2 100<br />
Liliaceae 3/3 100<br />
Molluginaceae 1/1 100<br />
Oleaceae 1/1 100<br />
Poaceae 13/43 30<br />
Table 3. A list <strong>of</strong> aggression or potentially aggressive non-native vascular plant<br />
species at 3 coastal Delaware state parks: Cape Henlopen, Delaware Seashore and<br />
Fenwick Island.<br />
Species<br />
Carex kobomugi<br />
Celastrus orbiculatus<br />
Elaeagnus species<br />
Eragrustis curvula<br />
Lythrum salicaria<br />
Phragmites australis<br />
55
Change language