Overview of Blueberry Diseases
Print this Post | Posted: December 4th, 2006 under Berry Crops, Blueberry, 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). For a complete guide, please click here.
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 |