Biodiversity - the variety of life forms - is the beauty of the earth. Conservation of biological diversity is the most important challenge of mankind today.The author, being a horticultural expert and grower, has been fascinated all his life about this topic and is worried that the basis of the so-called Nagoya agreement (in which all countries promise to protect biodiversity) is wrong.He has a unique solution and offers the reader his way of making an inventory of the present situation