Cork County Council has advanced efforts in controlling an infestation of GiantHogweed along the River Bride in East Cork. Controllinggianthogweed plants is difficult due to the problems of handling the weeds. Mechanical removal of the plant is effective but potentially dangerous. Employ manual control methods, with minimal the use of chemicals. Simultaneously, take actions to restore riparian margin to prevent recolonization by gianthogweed & secondary invaders. The problem with Gianthogweed. Gianthogweed is invasive and potentially harmful. Chemicals in the sap can cause photodermatitis or photosensitivityHow to controlgianthogweed. This study assessed efforts by the New York State Department of Conservation (NYSDEC) to controlgianthogweed in New York State. Gianthogweed is a federally listed noxious weed... The paper analyses possible control options limiting stands of gianthogweeds (H. mantegazzianum) based on survey data of n = 287 German districts. ...fished the River Ayr over the last 15 – 20 years, can’t help but notice the decline in GiantHogweed on the river since 2008 when Ayrshire Rivers Trust first started controlling this plant. CHemiCal CoNtRol. Spraying is very effective, plants can be treated with Glyphosate once active growth has resumed usually from March onwards.GiantHogweed is included in this list. Seier, M.K. 2003. Classical Biological Control of GiantHogweed (Heracleum mantegazzianum). IBGnews 12, 10. Tiley, G.E.D., Felicite S. Dodd, & P.M. Wade. Supplementary material 1 from: Rajmis S, Thiele J, Marggraf R (2016) A cost-benefit analysis of controllinggianthogweed (Heracleum mantegazzianum) in Germany using a choice...
