Paragraph 4

The standards of purity and health for Standard grade blackcurrant bushes shall be–

• Purity: 99.5%

• Health:

  1. (a)

     99% free from Big Bud Mite, Reversion and other discernible virus diseases;

  2. (b)

     substantially free from American Gooseberry Mildew;

  3. (c)

     reasonably free from other pests and diseases.