I hate to say this but the Roundup question is getting annoying. Lets make it easy. If you want to kill weedy plants by non chemical means go ahead and do it. But I really don't care to hear about chemical sprays on a never ending basis. On the contrary complaining about chemicals in the enviroment is a waste of time.We all know they are there but if you think you can shut down a major chemical company, good luck. These pesticides were developed after WW2. One goal was to produce more food for developing countries to feed it's citizens. In the us farmers were shown by the chemical company how they could increase production and make more money. Food growing areas of the world have been saturated with pesticides, It is too late after50+ years to get farmers not to use these products. So while we may not like the situation you cannot change it.From my latest agriculture reading bananas are the most heavily treated food crop. I think each of us can do our best by severely limiting the amount of pesticides we use in our gardens.Get rid of those old chemicals at a site set up to handle them. Don't dump the chemicals in garbage dumps or just anywhere! Russ H. In a message dated 4/3/2013 3:45:43 A.M. Pacific Daylight Time, christian.lachaud@gmail.com writes: Alberto, Sure, this would be interesting. You have mentionned GM soy engineered for roundup. Have you ever heard about any GMO which seeds would get activated by roundup ? In the case of Cardamine hirsuta, the seed is so tiny that it may be more exposed to environemental chemicals than bigger seeds ? But if such GMOs do exist, one will need to understand if it was possible that Cardamine got polluted by the roundup genes ? If it is not genetic pollution, then what is it ? Has anyone ever observed this phenomenon somewhere else or is it my local strain of Cardamine only, and I'm so lucky ? *Dr. Christian M. Lachaud, PhD* _________________ http://www.saffron-crocuses.com/ _______________________________________________ pbs mailing list pbs@lists.ibiblio.org http://pacificbulbsociety.org/list.php http://pacificbulbsociety.org/pbswiki/