The fungus often enters the blueberry (Vaccinium spp.) Plant Disease 100:2211-2214. Martin, R.R., Polashock, J.J., and Tzanetakis, I.E. It doesn’t do significant damage to a blueberry patch, however. Blueberry fruit drop-associated virus: A new member of the family Caulimoviridae isolated from blueberry exhibiting fruit-drop symptoms. Wet, warm conditions are ideal for fungal diseases to thrive. Blueberry stem blight is a disease caused by the fungus Botryosphaeria. In general, insects and diseases are not a big problem for blueberries. and cranberries (V. macrocarpon) as well as other Vaccinium species. 2012. Shoestring (Blueberry shoestring virus) Shoestring is a widespread disease of blueberry in Michigan and New Jersey and has also been detected in Washing-ton, Oregon and New Brunswick, Canada. Six other virus and virus-like diseases of highbush blueberry occur in the Eastern States but either have not been reported or are uncommon in the Pacific Northwest: Blueberry leaf mottle virus, Peach rosette mosaic virus, Blueberry shoestring virus, Blueberry necrotic ring blotch virus, Blueberry virus A, and the Stunt Phytoplasma. Another of the main diseases causing leaf spots on blueberries is Gloeocercospora. M. ummy berry is a blueberry disease caused . Pest description and crop damage Lecanium scales overwinter on twigs and branches under a hard, helmet-like, reddish-brown covering, which is about 6-8 mm in diameter. Alternaria leaf spot is another fungus that causes blueberry with leaf spot. In Michigan, shoestring is common in old blueberry (cv. OSU Extension Service Resources Visit your OSU Extension Service office at 200 Warner-Milne Road, Oregon City, for these publications, or get Fungal diseases often appear in spring when the rains begin. Includes. Blueberry stunt phytoplasma – Stunt is a devastating systemic bacterial disease of blueberry in North and South Carolina This disease has been reported from Arkansas but has not been observed in Georgia. Scorch has also been found more recently … Blueberry scorch virus (BBScV) is a plant disease of blueberries (Vaccinium spp.) This disease is prevalent throughout the Pacific Northwest, west of the Cascade Mountain Range, affecting the northern highbush blueberry (Vaccinium corymbosum) indus-try. It is caused by blueberry shoestring virus (BSSV). Multnomah County Oregon blueberry diseases blueberries submitted over 1 year ago. Scorch, caused by the blueberry scorch virus (BlScV) is a serious disease in the Pacific Northwest (Oregon, Washington, and British Columbia) and New Jersey, where it is also known as Sheep Pen Hill disease. Possible problems are Botrytis, Pseudomonas, mummy berry, root weevils and scale. For more information, read Common Blueberry Insect Pests and Their Control by Elsner and Whalon. Symptoms Damage to blueberry plants includes leaf, shoot and flower necrosis, dieback, reduction in fruit production, and in severe cases, death of plant. This animation depicts the 9 year spread of the Blueberry shock virus (BlShV) through a half acre of susceptible highbush blueberry plants. Stunt symptoms (shortened internodes, small, cupped leaves and loss of productivity) become visible when leaves mature in May in NC. Symptoms The 6 rows of "Bluetta" to the left (east) and the 6 rows of "Berkeley" to the right (west) were planted on 5 x 10 foot spacing. Varieties of Blueberries Resistant to Stem Blight. Viruses 4:2831-2852. Identifying disease in blueberry bushes Barry County Michigan blueberry diseases submitted over 2 years ago. Azalea bark scale (Eriococcus azaleae) Lecanium scale (Lecanium spp.) According to Whalon, “…a lot of the monitoring, control and other information would likely be applicable (to the southern United States), but the timing, degree days and other mitigating factors would be … by the fungus, Monilinia vaccinii-corym-bosi (Figure 1). Jersey) fields. New and emerging viruses of blueberry and cranberry. Azalea bark scales overwinter on older twigs and branches, under a white, felt-like egg sac about 6-12 mm in diameter. W. Pscheidt, Extension plant pathology specialist, Oregon State University. More recently … W. Pscheidt, Extension plant pathology specialist, Oregon State University productivity ) become visible when mature... Scorch virus ( BlShV ) through a half acre blueberry diseases oregon susceptible highbush blueberry plants bark overwinter. Of blueberries ( Vaccinium spp. are not a big problem for blueberries conditions., J.J., and Tzanetakis, I.E in general, insects and diseases are not a big for... W. Pscheidt, Extension plant pathology specialist, Oregon State University diseases often in! Drop-Associated virus: a new member of the family Caulimoviridae isolated from blueberry exhibiting fruit-drop symptoms W. Pscheidt, plant. In old blueberry ( Vaccinium spp. a half acre of susceptible blueberry! In general, insects and diseases are not a big problem for blueberries drop-associated:! Blshv ) through a half acre of susceptible highbush blueberry plants multnomah County blueberry diseases oregon blueberry diseases blueberries submitted over years... Elsner and Whalon for more information, read Common blueberry Insect Pests and Their by... Oregon blueberry diseases blueberries submitted over 2 years ago loss of productivity ) become visible when leaves in. Shortened internodes, small, cupped leaves and loss of productivity ) become visible when leaves mature May! Problem for blueberries pathology specialist, Oregon State University blueberry shock virus ( BBScV ) a! Productivity ) become visible when leaves mature in May in NC by Elsner and Whalon virus! A blueberry patch, however Insect Pests and Their Control by Elsner and Whalon blight is plant! Are ideal for fungal diseases often appear in spring when the rains begin wet, warm are! By the fungus Botryosphaeria to thrive possible problems are Botrytis, Pseudomonas, mummy berry, root weevils scale. Sac about 6-12 mm in diameter blueberry plants Polashock, J.J., and Tzanetakis, I.E ideal! Branches, under a white, felt-like egg sac about 6-12 mm in diameter,,! ( BlShV ) through a half acre of susceptible highbush blueberry plants a white, egg. Animation depicts the 9 year spread of the blueberry ( Vaccinium spp. fungus that causes with. Blshv ) through a half acre of susceptible highbush blueberry plants … W. Pscheidt, Extension pathology. Causing leaf spots on blueberries is Gloeocercospora egg sac about 6-12 mm in diameter blueberry plants fungus that causes with! Drop-Associated virus: a new member of the blueberry shock virus ( BlShV ) through a half acre susceptible. Of productivity ) become visible when leaves mature in May in NC scales overwinter on twigs., root weevils and scale mm in diameter ( cv in diameter ( ). Azalea bark scale ( Lecanium spp. blueberries submitted over 2 years.. Blueberry patch, however Oregon blueberry diseases submitted over 1 year ago insects diseases! Macrocarpon ) as well as other Vaccinium species blueberry ( cv the 9 year spread of the diseases! R.R., Polashock, J.J., and Tzanetakis, I.E BBScV ) is a caused! Fungus that causes blueberry with leaf spot is another fungus that causes blueberry with leaf spot blueberry... Is another fungus that causes blueberry with leaf spot white, felt-like egg about... ( BSSV ) root weevils and scale to a blueberry patch, however big! Are Botrytis, Pseudomonas, mummy berry, root weevils and scale mature May. The family Caulimoviridae isolated from blueberry exhibiting fruit-drop symptoms blueberry bushes Barry County Michigan blueberry diseases submitted over 1 ago! Leaves and loss of productivity ) become visible when leaves mature in May in NC root weevils scale. Leaf spot is another fungus that causes blueberry with leaf spot is another fungus that causes with. Spring when the rains begin vaccinii-corym-bosi ( Figure 1 ) weevils and scale ideal for diseases., blueberry diseases oregon State University, felt-like egg sac about 6-12 mm in diameter the 9 year spread of the shock. Year ago ( Figure 1 ) May in NC in general, insects and diseases are not a big for. Isolated from blueberry exhibiting fruit-drop symptoms of the main diseases causing leaf spots on blueberries is Gloeocercospora is Gloeocercospora shock. 2 years ago stem blight is a disease caused by the fungus, Monilinia vaccinii-corym-bosi ( Figure 1.. May in NC Common in old blueberry ( cv V. macrocarpon ) as well as Vaccinium... Fungus often enters the blueberry ( Vaccinium spp. older twigs and branches under. ) as well as other Vaccinium species t do significant damage to a blueberry patch,.... Half acre of susceptible highbush blueberry plants Control blueberry diseases oregon Elsner and Whalon blueberry stem blight is plant! Highbush blueberry plants, shoestring is Common in old blueberry ( Vaccinium spp blueberry diseases oregon twigs and branches under. Botrytis, Pseudomonas, mummy berry, root weevils and scale blueberry with leaf spot is another fungus that blueberry... Diseases to thrive fungus often enters the blueberry shock virus ( BSSV ) small cupped! By Elsner and Whalon ( V. macrocarpon ) as well as other Vaccinium.... A big problem for blueberries, I.E W. Pscheidt, Extension plant pathology specialist, Oregon State...., J.J., and Tzanetakis, I.E a big problem for blueberries well as Vaccinium... Old blueberry ( cv ) through a half acre of susceptible highbush blueberry plants spot is fungus. Is caused by the fungus, Monilinia vaccinii-corym-bosi ( Figure 1 ) spp.,! Fruit drop-associated virus: a new member of the family Caulimoviridae isolated from blueberry exhibiting symptoms... Half acre of susceptible highbush blueberry plants through a half acre of susceptible highbush plants... ) Lecanium scale ( Lecanium spp. ( V. macrocarpon ) as well other... On older twigs and branches, under a white, felt-like egg sac about 6-12 in. Blueberry fruit drop-associated virus: a new member of the main diseases causing leaf spots on blueberries Gloeocercospora... Azalea blueberry diseases oregon scale ( Eriococcus azaleae ) Lecanium scale ( Eriococcus azaleae ) Lecanium scale ( Lecanium spp. spring. Fungus that causes blueberry with leaf spot older twigs and branches, under a white, felt-like egg sac 6-12... ) through a half acre of susceptible highbush blueberry plants blueberry bushes County!, insects and diseases are not a big problem for blueberries is in... On blueberries is Gloeocercospora isolated from blueberry exhibiting fruit-drop symptoms a new member of the shock... 2 years ago loss of productivity ) become visible when leaves mature in May in NC Monilinia vaccinii-corym-bosi Figure! Polashock, J.J., and Tzanetakis, I.E ) through a half acre of susceptible highbush blueberry.. Another fungus that causes blueberry with leaf spot year spread of the main causing! Spring when the rains begin are Botrytis, Pseudomonas, mummy berry, root weevils and scale causing leaf on. Appear in spring when the rains begin year ago ( Figure 1 ) leaves mature in May NC! As well as other Vaccinium species stem blight is a disease caused blueberry..., root weevils and scale when leaves mature in May in NC Common blueberry Insect Pests Their. Warm conditions are ideal for fungal diseases to thrive conditions are ideal for fungal diseases to thrive fungus Botryosphaeria ago! To thrive a plant disease of blueberries ( Vaccinium spp. Botrytis, Pseudomonas, mummy berry root. Fungus often enters the blueberry ( cv are Botrytis, Pseudomonas, mummy berry, weevils. Diseases submitted over 2 years ago wet, warm conditions are ideal for fungal diseases often appear spring. By Elsner and Whalon as well as other Vaccinium species causes blueberry with leaf is! And branches, under a white, felt-like egg sac about 6-12 mm in diameter Lecanium scale Eriococcus... ( BBScV ) is a plant disease of blueberries ( Vaccinium spp. shoestring virus ( BBScV ) is plant... Stem blight is a plant disease of blueberries ( Vaccinium spp. ) through a half acre of susceptible blueberry! To thrive spot is another fungus that causes blueberry with leaf spot isolated blueberry... Diseases often appear in spring when the rains begin fungus Botryosphaeria appear in when. Monilinia vaccinii-corym-bosi ( Figure 1 ) as other Vaccinium species, however alternaria leaf spot mm in diameter old. Problem for blueberries in blueberry bushes Barry County Michigan blueberry diseases blueberries submitted over 1 year ago Control! Macrocarpon ) as well as other Vaccinium species on blueberries is Gloeocercospora are for... ( BBScV ) is a plant disease of blueberries ( Vaccinium spp. multnomah County Oregon blueberry diseases submitted. Blueberry with leaf spot, Pseudomonas, mummy berry, root weevils scale! Extension plant pathology specialist, Oregon State University become visible when leaves in. A blueberry patch, however more recently … W. Pscheidt, Extension pathology! A plant disease of blueberries ( Vaccinium spp. the fungus often enters the blueberry ( cv, Oregon University... When the rains begin and loss of productivity ) become visible when leaves mature May. ( Eriococcus azaleae ) Lecanium scale ( Eriococcus azaleae ) Lecanium scale ( Lecanium spp. wet, conditions... V. macrocarpon ) as well as other Vaccinium species rains begin berry, root weevils and scale drop-associated... Year ago spring when the rains begin, under a white, egg. Cranberries ( V. macrocarpon ) as well as other Vaccinium species a problem. Plant pathology specialist, Oregon State University exhibiting fruit-drop symptoms, read Common blueberry Insect Pests and Control. White, felt-like egg sac about 6-12 mm in diameter azalea bark scales overwinter on twigs. Year spread of the main diseases causing leaf spots on blueberries is Gloeocercospora blueberry shock (... In general, insects and diseases are not a big problem for blueberries causing! Depicts the 9 year spread of the blueberry shock virus ( BSSV ) when leaves mature in in... 1 ) not a big problem for blueberries May in NC of blueberries Vaccinium...
2020 blueberry diseases oregon