Hillsborough County ISTF - Manatee County Extension Office ...
Hillsborough County ISTF - Manatee County Extension Office ... Hillsborough County ISTF - Manatee County Extension Office ...
Fruits and leaves of Airyam (right) are longerthan those of Air potato(below). The fruits growin the leaf axils. Theyhave been placed on theleaves in these photos toshow their shape, relativeto the leaf.10
Air potatoAir yamDioscorea spp.D. bulbiferaD. alataIdentifying CharacteristicsHerbaceous vines with stems up to 60 feet or more inlength, twining counterclockwise and covering trees andshrubs. Leaves are alternate (D. bulbifera) or opposite (D.alata), heart-shaped, up to 8 inches or more in length;bright or dark green in color. Aerial tubers or bulbils(“potatoes”) are round, mostly smooth, but can be bumpyor rough; form in the leaf axils. Bulbils range from pea togolf ball to tennis ball size, but can grow to approximately5 inches across. Some species, such as D. alata, produceunderground tubers. Flowers are rarely seen and aresmall—in spikes to 4 inches long. Fruits are capsules withpartially winged seeds.Note: Often confused with Kudzu, but leaf shape ischaracteristic.HabitatCommonly found in residential areas, growing on fencelines and trees, especially in shady areas. Found in vacantlots, climbing high into trees and over the ground.Invades a variety of habitats including wetlands,pinelands, hammocks and even landfills.Growth HabitsReproduces prolifically from large numbers of aerial andunderground tubers. Vines sprout even from small tubers.Bulbils float, aiding in dispersal. Has a dormant period inwinter, dropping the bulbils which sprout in the spring.Control Methods: Foliar or Cut-StumpDuring growing season (spring to mid-summer), cut vinesto waist high and apply triclopyr amine or glyphosate.Remove tubers during winter months when vines havedied back. Carefully dispose of all plant material andtubers/bulbils in plastic bags; incinerate if possible.Follow-up applications of herbicide are necessary.ReplacementsIn most cases, a replacement is not necessary or desirable.However, native vine replacements include:Moonflower vine (Ipomoea alba)Carolina jessamine (Gelsemium sempervirens)11
- Page 3 and 4: This guide is intended and designed
- Page 5 and 6: Plant List10 Air potato and Air yam
- Page 7 and 8: Herbicide Application TechniquesHer
- Page 9 and 10: • Buy the right amount for your n
- Page 11: WATER-BASED HERBICIDES (CUT-STUMP A
- Page 17: Brazilian pepperSchinus terebinthif
- Page 21: Chinaberry treeMelia azedarachIdent
- Page 24 and 25: 22The midvein is offcenterin Cogon
- Page 27 and 28: Guinea grassPanicum maximum(sometim
- Page 29: Japanese climbing fernOld World cli
- Page 33 and 34: Lead treeJumbie beanLeucaena leucoc
- Page 35: MelaleucaPunk treeMelaleuca quinque
- Page 39: Rosary peaCrab’s eyesAbrus precat
- Page 43 and 44: Torpedo grassBullet grassPanicum re
- Page 45 and 46: Tropical soda appleSolanum viarumId
- Page 47 and 48: Camphor treeCinnamomum camphoraMost
- Page 50 and 51: SourcesFlorida Department of Enviro
Fruits and leaves of Airyam (right) are longerthan those of Air potato(below). The fruits growin the leaf axils. Theyhave been placed on theleaves in these photos toshow their shape, relativeto the leaf.10
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