- Lead scientist
- Dr Jean Fitzgerald, East Malling Research
- Partners
- Dr Tijana Blanusa, Rachael Tanner RHS
- Start date
- 2006
- End date
- 2008
- Keywords
Leyland cypress, aphid, dieback, browning, hedge, trimming
- Benefits to gardeners
The findings of this project will provide answers on how the maintenance of the Leyland hedges can be optimised to decrease the likelihood of cypress dieback appearing and spreading.
- The problem
Leyland and Lawson cypress are extensively used to make quick growing hedges, but regular trimming of the hedges is needed to avoid excessive growth. Brown patches (dieback) are becoming more common on trimmed hedges. Feeding damage by conifer aphids can cause browning on conifers, but it is uncertain if aphids are responsible for most of the damage seen.
- Approach
- Further information
- Advisory information
Read more on Conifers: brown patches