Analysis - view details of type of pest/disease/disorder
  Index BFW

Drought | deutsch

Symptoms    Necrosis of the rims of leaves, drying out (rolling) of leaves, premature leaf shedding, beginning on the tips of the shoots and extending towards the stem; dieback of the crown, often visible only in the year following the drought; drop of shoots: Populus, Quercus; also shed of parts of the bark (Platanus.
Impact    The following tree genera are most susceptible: Betula, Acer pseudoplatanus, Carpinus betulus, Alnus, Picea and Larix. Drought effects vary depending on the time drought occurs: drought in spring causes symptoms often in the same year, damage of drought periods in summer usually become visible in the following year(s). Drought causes a general physiological weakening of the tree and a reduction in the assimilating tissues; intense stress – esp. with young trees, may cause death of the tree; increased risk of secondary invaders.
Control    solitary trees: watering, careful pruning
Hosts   Maple; Apple; Birch; Pear; Beech; Boxelder; Douglas fir; European mountain ash; Edible chestnut; English ivy; Yew; Oak; Wild service tree; Alder; Ash; Ex-Robinia; Serviceberry; Spruce; Lilac; Forsythia ; Framire; Ginkgo; Tree-of-heaven; European Hornbeam; Dogwood; Hazel; Hemlock; Elder; Hophornbeam; Pine; Cherry; Buckthorn; Larch; Thuja; Privet; Linden, Lime; Magnolia; Redwood; Giant sequoia; Mulberry; Common whitebeam; Common medlar; Olive tree; Poplar; Bladdernut; Plane; Rhododendron; Leyland cypress; Rose; Horse chestnut; False Cypress; Japanese Pagoda tree; Spindle; Holly; Fir; Southern Catalpa; Elm; Juniper; Walnut; Willow; Common grape wine; Hawthorne; Cedar; Hackberry;
Affected plant parts    Leaf; Needle; Root; Shoot/Twig/Branch; Stem;


Drought: Birch (Betula) showing drought symptoms: premature yellowing of upper crown parts
Drought: Necroses of the rims of leaves (Carpinus betulus)
Drought: Platanus: loss of leaves

The shown graphical material is copyrighted. © 2006 BFW Wien. You can use the images for your own publications only if you name the source AND if you have a valid agreement with BFW Vienna. Furthermore images in high resolution are for sale at BFW.
In this case please contact (Department of Forest Protection) or , our PR manager.

Index BFW | Department of Forest Protection | Other types of damage | Back