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JEANNE HUGHES New giant hogweed growth, showing leaf shape and size.


last year. During the first years of growth it stores increasing amounts of energy in its roots to subsequently develop its flower stalk, flowers, and seeds. (You may observe in an established population plants of varying ages – small first year plants, larger older plants, and fourth or fifth year plants in flower.)


Repeatedly cutting the flower stalk at ground level can pdf/tp0602.pdf


If you would like further information on how to control giant hogweed, or have a “situation” you would like to discuss, please contact me at fvipc@shaw.ca or 604-615- 9333.


— Jeanne Hughes is coordinator of the Fraser Valley Invasive Plant Council.


be a method of killing giant hogweed. Removing the seed head in the summer can prevent the production and dispersal of new seeds – a useful short-term control technique. Of course, the last and perhaps most important step is monitoring the area to prevent reestablishment from seeds in the soil. If you have this plant on your property and are planning on controlling it yourself, make sure your eyes and skin are properly protected, cut off the seed head for a stopgap measure, or cut the plant off at the base below the soil surface with a shovel. Any remnant plant parts should be bagged and thrown in the garbage, not composted. WorkSafe BC has prepared a fact sheet at: www.worksafebc.com/ publications/health_and_safety/ bulletins/toxic_plants/assets/


16 British Columbia Berry Grower • Summer 2011


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