Common Hackberry trees in our area:


Hackberry:

123

 

 

  • Deciduous tree, 40-60(100) ft (12-15(30) m) tall, similar spread, ascending arching branches, some drooping branches.  Leaves simple, alternate (2 rows along twig), 6-9 cm long, ovate to oblong-ovate, long tapering tip, margin serrate except at base, dull light or medium green above, paler below (yellow or green yellow in fall), petiole 13-19 mm.  Flowers greenish-yellow appear in spring as the foliage just begins to emerge, male (staminate), female (pistillate), and perfect flowers may be borne on a single tree.  Fruit is berry-like drupe, reddish-purple, 6-8 mm across, persisting in winter, edible (flavor similar to dates).

 

  • Sun, prefers rich, moist, soils but grows in dry, heavy or sandy soils.  Withstands alkaline or acid soils, wind, heat and urban conditions.

 

  • Leaves are often disfigured by nipple galls, which are wart-like projections about 4 mm in diameter and almost 6 mm high.  They are caused by the psyllid insect Pachypsylla dismamma, one of many jumping plant lice.  Blister galls, which are caused by Pachypsylla celtidisvesicula, are about 3-4 mm in diameter and only slightly raised above the leaf surface (Johnson and Lyon, 1991).
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  • Hardy to USDA Zone 3      Native from Quebec to Manitoba, south to North Carolina, Alabama, Georgia and Oklahoma.

 

 

 

 

 

 

Common problems with Hackberry trees:

 

 

Insects:

 

Aphids      
 

 


Aphids feed by sucking up plant juices through a food channel in their beaks. At the same time, they inject saliva into the host. Light infestations are usually not harmful to plants, but higher infestations may result in leaf curl, wilting, stunting of shoot growth, and delay in production of flowers and fruit, as well as a general decline in plant vigor. Some aphids are also important vectors of plant diseases, transmitting pathogens in the feeding process.

A sticky glaze of honeydew may collect on lower leaves, outdoor furniture, cars, and other objects below aphid feeding sites. Honeydew coated objects soon become covered by one or more brown fungi known as sooty molds. Crusts of sooty mold are unsightly on man-made objects, and they can interfere with photosynthesis in leaves.

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Diseases:

 

     
   

 

 

    
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