Later on these pods swell, the pods ripen to a black hard shell and them they explode sending the seeds over 5m away. Pulling balsam by hand into massive piles appears to be a great method of control, if you have a load of people. We are now at the point where smashing them down will do less harm than good.....unless we have an Indian summer. Last year, Himalayan balsam plants were still in flower in October, when adjacent plants had already shed all of their seeds. A plant with a smashed stem, this late in the normal season may have time to regrow new flower heads from any left over node, if the weather is on the plant's side.
|Some signs of larger green seed pods. The seeds inside were mainly white with some small brown patches|
|Nicola and Tricia out on a Balsam pull|
|balsam in bramble|
|balsam with minimum bramble clearance, brushcutter then pull by hand|