All Poplar varieties
Dead branches and twigs throughout the crown.
In isolated trees, remove infected branches.
Sorbus & Malus Species (Mouantain Ash, Whitebeam & all Apple Spp) Poplar Spp, Pyrus (Pear) & Willow.
Brown leaf blotches, Spots on fruit. Leaves die off but remain on shoot
Spray fungicide where appropriate.
Birch, Hornbeam, Cherry and Fruit Trees
Thick, dense clusters of live or dead twigs. Blooms flush earlier than rest of tree
Cherry, Poplars and Alders
Whole leaves are distorted, blistered and discoloured. Leaves can fall early. Dead Twigs.
Cupressaceae macrocarpa, Leylandii & Western Red Ceder.
Scattered yellow brown foiliage in crown, top of tree dead.
Remove recently infected branches. If badly diseased, remove.
Large bituminous blotches with yellow outer rings on leaf surface.
On small plants, spray with a Bordeaux mixture, Rake and remove fallen leaves.
Dark, thick cracks on Stem. Dead Branches
Cherries and Fruiting Trees
Yellowing leaves, Tree never flushing
Apply bactericide on fruiting trees where possinle.
Spanish Chestnut, Yew, Beech, Malus, Lime and Cherries Rarely oak and Leylandii.
All or some lower branches on one side die. Tree may die suddenly or even slowly. Tree will not fruit. Oftan occurs on wet sites.
Do not over water. No cure for diseased tree.
Small black spots on leaves, falling and turning black. No berries. Black patches on twigs.
Remove host if infected.
Horse Chestnut, Lime, Oak, Maple, Willow, Birch
Red/ Black, Yellowy brown gummy ooze on bark. Cracked bark with growing fungi.
Cut out all dead, dying bark and a 2’ strip of healthy bark with sterilised blade. Treat wound with paint on fungicide.
In late spring, fluffy white patches appear on the underside of beech leaves. This covers pale yellow aphids that are sucking sap from the foliage and young stems. The aphids excrete a sugary substance called honeydew that coats the upper leaf surface and makes the foliage sticky
Control with pesticides is only feasible on beech trees and hedges that are small enough to be sprayed thoroughly. Affected plants can be sprayed in April-May when infestations begin. It is not worthwhile spraying later in the summer, as by then any damage has already occurred and the infestation will be past its peak and in decline.