Field Maple Acer campestre Aceraceae
 
 
 
larger photos of field maple
   
 
  Classification Field maple
  Height: 3 - 20 m
  Leaf: green, opposite leaf arrangement, lobed 3-5
  Flower: Mai - inconspicuous yellow umbel grapes
  Fruit: small winged nuts, arranged horizontally, in pairs
  Branches: brown, rarely with cork borders
  Bark: grey - brown
  Root: cordate
  Location: Sun to half-shade
  Soil: sandy - loamy
  ph-value: weakly sourly to alkaline
  Diseases  
Field Marpel
 
Mildew (Uncinula bicornis):
Flour rope (Uncinula bicornis): grey-white coat with the finger wipe offable. Does not have to be treated. Remove strong infestation leaves in the autumn.
 
Leaf marks (Didymosporina aceris):
Only small black marks on the sheets. Later larger brown marks up to the sheet waste. Treatment not necessarily.
 
Cancer (Nectria galligena):
Fungal attack breaks open the bark. Stricken branches should be removed and burned. If the trunk is stricken the cancer should be cut out by a specialist.
 
Plant Louse (Periphyllus villosus)
Leaf changes by plant louse parasitic growth. Harmless for the tree.
 
Verticillium (Verticillium alboatrum)
Tracheomykose (parasitic fungus illness) far spreads in gardening used soils. The fungus penetrates over the roots and clogs the line courses (brown colouring). The leaves wither. Also only parts of the tree can be concerned. An exact evaluation should make the specialist, since withered features also can have different causes (root damage, dryness etc.).
     
    Fungi
 
Daedalea unicolor
     
  Galls - leaves deformations causes by Gallmilben. Harmless for the tree.
 

more galls under pflanzengallen.de
Aceria macrorrphyncha cepholonea Aceria macrochela macrochela Aceria eriobia eriobia  
       
 
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