Organic growers face the same potentially severe pest problems as non-organic farmers. By contrast, the organic farmers have a very limited range of approved products with which to control these problems. In many countries, very few fruit farmers even dare trying to grow with the less effective organic pest control methods.
“The demand for organic pears in North-western Europe is high compared to the limited production. In spite of the good market perspective there are very few pear growers in the Netherlands who dare convert to organic production. The most prominent reason for this is their fear of scab (Venturia pirina). And indeed it is the experience of those who are growing organically that it is very hard to control this important disease. This is even more so since Copper based products were banned as fungicides in the Netherlands.”
Author: Jansonius, P. J.
Affiliation: Louis Bolk Institute, Hoofdstraat, NL
Title: Conference pears; work on system changes to enable better scab control in organic orchards in the Netherlands.
Source: Ecofruit Proceedings. 2008.