Overview of Blueberry Diseases
December 4th, 2006 under Blueberry, Berry Crops, Pest Management.
Pacific Northwest blueberry growers must identify and control a number of different fungal, bacterial, and viral diseases as well as nematodes in order to ensure the highest yields possible (profitable yields). Fortunately, only a few of the diseases which occur on highbush blueberry in this region cause significant losses when left unchecked (Table 1).
Table 1. Relative importance of diseases of highbush blueberry
in the Pacific Northwest
| Disease | Causal Agent | Relative Importance (1) |
|---|---|---|
| Bacterial | ||
| Canker | Pseudomonas spp. | 3 |
| Crown Gall | Agrobacterium tumefaciens | 1 |
| Fungal | ||
| Anthracnose | Colletotrichum gloeosporioides | 2 |
| Armillaria root rot | Armillaria mellea | 1 |
| Botrytis blight | Botrytis cinerea | 4 |
| Double Spot | Dothichiza caroliniana | 1 |
| Godronia canker | Godronia cassandre | 3 |
| Leaf rust | Pucciniastrum vaccinii | 1 |
| Mummy berry | Monilinia vaccinii-corymbosi | 4 |
| Phytophthora root rot | Phytophthoraspp. | 2 |
| Powdery Mildew | Microsphaera alni | 1 |
| Sooty Mold | Several fungi | 1 |
| Stem canker | Botryosphaeria corticis | 1 |
| Twig blight | Phomopsis vaccinii | 1%3 |