09-09-2004, 07:30 AM
I think guavas were banned back home because they take up too much water and self seed a bit too easily. Same reason why syringa trees (Cape lilac) is banned in the northern parts of SA.
I shared this on MT as well and explained there that something similar already exists within the EU whereby only seed cultivars listed for commercial growing and trade can be legally bought and sold within the EU, that was the impetus for starting the heritage seed saver organisations - to preserve the genetic diversity of cultivated plants. I see the white list of the US as an extension of this type of policy making.
I shared this on MT as well and explained there that something similar already exists within the EU whereby only seed cultivars listed for commercial growing and trade can be legally bought and sold within the EU, that was the impetus for starting the heritage seed saver organisations - to preserve the genetic diversity of cultivated plants. I see the white list of the US as an extension of this type of policy making.