Details of this species in Santa Cruz Is. (Ecuador)
Status: Alien Invasiveness: Invasive Occurrence: Present/controlled Source: Rentería et al. 2006; Rentería et al. 2007
Arrival Date: Introduction:
Species Notes for this Location: Cryptostegia grandiflora is only known from Santa Cruz Island, where it was found in four sites in the coastal village of Puerto Ayora. Four adult plants and hundreds of juveniles have been recorded (Rachel Atkinson., pers.comm., July 2008).
Management Notes for this Location: Control of Cryptostegia grandiflora was carried out in 2006 using picloram and metsulfuron-methyl at 5%. The sites were revisited in 2007 when resprouting was controlled. It is estimated that this species could be eradicated in two years at a cost of 414 USD (Rachel Atkinson., pers.comm., July 2008).
Rentería et al. (2007) documents costed eradication plans for 21 invasive species including Cryptostegia grandiflora in Galapagos. The plans were developed as part of a GEF funded project ECU/00/G31 'Control of Invasive species in the Galapagos Archipelago'. The management plans report projects at different stages of development and for species that have invaded to different extents. Three of the projects have already been finished successfully, 5 have yet to be started, and for the rest the projects have been running for between 1 and 6 years. The cost and time needed for eradication varies considerably by species and demonstrates the importance of species eradication as soon as possible after detection. Please follow this link Rentería et al. 2006 to an illustrated guide providing practical information for the effective control of the worst invasive plant species in Galapagos. Designed for farmers and other land managers, it describes manual and chemical control methods. Cryptostegia grandiflora is among 23 introduced species with descriptions and control options listed.
Last Modified: 20/12/2006 9:41:23 a.m.
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