Organics options

The use of copper products is permitted in organic viticulture, however copper only provides a preventative action and research is now being undertaken to test the effectiveness of low copper formulations and alternatives to copper for organic growers.

A four year trial 2004-2007 in Germany showed that it is possible to use sprays with a reduced copper content (1.5–2 kg/ha/year) in combination with Myco-Sin VIN® an acidified clay mineral product and plant strengtheners including algae extracts, plant extracts, and phoshonate.

In years with low and medium disease pressure a good level of control was achieved. A combination of copper hydroxide at low rates with 2-3 applications of K-Phosphonate (Frutogard®) between flowering and fruitset provided a high level of protection.