Yew can be infested by several parasites. However, it is not necessary to treat every infestation. Some diseases or pests pose little or no threat to the plant. However, some diseases do require decisive action and are indicated with an exclamation mark(!).
For each pest or disease, some examples of active substances known to be effective are shown. Trade names are not given because they may vary from country to country. Not all products are for sale or recognised in all countries. These recognitions also change regularly, so please consult your national recognitions.
For Belgium: www.fytoweb.be
This section is based on experiences gained in a professional yew nursery.