Blueberry

Blueberry belongs to the heath family, is native to the northeastern United States.

Do not confuse with:
European blueberry (Vaccinium myrtillus)

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recognize blueberry (northern highbush blueberry)
Blueberry, photo: Rasbak – CC BY-SA 3.0

Blueberry (Vaccinium corymbosum) – the northern highbush blueberry also called blue huckleberry, tall huckleberry and swamp blueberry belongs to the heath family. Blueberry is native to the northeastern United States. Not to be confused with the European blueberry (Vaccinium myrtillus). The blueberry is pruned in early spring – if necessary. Blueberry does not need much pruning; once every three to four years is sufficient. Then cut away excess branches at the heart of the shrub. The blueberry can grow one and a half to two meters tall and can reach thirty years of age.
The blueberry likes semi-shade and a light, humus-rich acidic soil (pH 3.5 – 4.5). Blueberry is not a plant for heavy clay or loam soils. Keep the soil moist, without really needing to be wet.

Bugs

recognize voracious weevil damage
Semicircular holes on the leaf edges of a sweet chestnut caused by the Black vine weevil, photo: PlantEnPlagen

Semicircular bites from leaf margins: Black vine weevil (Otiorhynchus sulcatus).

Fungi & diseases

Brown spots, then grey mold: gray mould (Botrytis ssp.).

Fodronia canker, photo: Dr. Siva Sabaratnam (Ministry of Agriculture, British Columbia, Canada)

Brown-purple spots on branches: Godronia Canker (Godronia cassandrae).

Fruits are affected by a fungus: ripe rot – Anthracnose (Colletotrichum).

Other

Berries are snatched: birds.

Deficiency symptoms, moderate to no growth: soil pH too high.