- Caoutchouc de Maurice,
- India rubber vine,
- Liane de gatope,
- Palay rubber vine,
- Purple allamanda,
- Rubber vine
Cryptostegia grandiflora Roxb. ex R.Br.
Climbing plant which may cover trees more than 15 m high, or a creeper in open places, growing as a bush. The stems produce a white latex. Leaves opposite, thick, elliptic to ovate, dark green, shiny 6 to 10 cm long and 2.5 to 5 cm wide. Large flowers, with five petals, pink outside and white inside, 5 cm long and wide. The fruit is a large ellipsoid capsule, brown, 10 to 15 cm long, often horizontally opposed pairs. Each capsule contains numerous seeds adorned with tufts of long silky white hairs.
This perennial vine is very aggressive. Its many seeds are dispersed long distances by wind and water and germinate in the early rainy season. The plant can grow stems 4 to 5 m in the first year. It flowers early in the rainy season, fruiting occurs until the late dry season and cool season. It loses its leaves in the dry season. The life of the vine exceed 80 years. Very toxic to herbivores, it is not palatable but 10 g of chopped leaves mixed with hay kills a horse in a few days.
Plant native to Madagascar, it was broadcast by man as an ornamental in most tropical and subtropical regions.
It is a major weed in Australia (Queensland), and New Caledonia.
At the seedling stage it can destroy by spraying herbicide, thoroughly wetting the foliage and stems: 1) 2,4-D at 0.2% (20 ml per 10 liters of water ) after slashing, 2) picloram + 2,4-D. The action of the herbicide is very long (12 months), do not perform mechanical intervention or other treatment during the year following the first treatment. For adults plants it is recommanded to brush on wounds and cutting the base of the stem, immediately after cutting, with triclopyr or peeled stem to a height of 50 cm from the ground. Several biocontrol agents are proving effective in Queensland with a leaf rust (Maravalia cryptostegiae). Recent studies in Australia have shown that the seed bank may run in a year because of the massive germination. In this case, we can hope to eradicate the weed in a relatively short time, provided to prevent the plant from producing seeds.
Blanfort V, Desmoulins F, Prosperi J, Le Bourgeois T, Guiglion R, Grard P (2010) AdvenPaC V.1.0 : Adventices et plantes à conflit d'intérêt des Pâturages de Nouvelle-Calédonie. IAC, Cirad, Montpellier, France, http://idao.cirad.fr/applications
|rubberklimop||Afrikaans||Bromilow C. 2010. Problem plants and alien weeds of South Africa. p.48|
|Purple allamanda||English||Catalogue of Life|
|Caoutchouc de Maurice||French||EPPO|
|India rubber vine||English||Catalogue of Life|
|Rubber vine||English||Catalogue of Life|
|Palay rubber vine||English||EPPO|
|Liane de gatope||Localités_179||French||Catalogue of Life|