Raspberry Diseases

rbdv_berries

Oregon State University

Bushy Dwarf Virus:
Since 1998, this disease has increased in Oregon.  Bushy Dwarf (BD)virus causes berries to be  crumbly and leaves to developed chlorosis yellowing; although, not all infect plants  display this leaf-yellowing symptom.  BD can infect both raspberries and marionberries plants, dramatically reducing their fruit production and infecting surrounding plants.

DB Virus

Ontario Ministry of Agriculture

The BD is spread by pollinating insects, because the virus is in the flowers pollen, so they transmitted the virus to other plants. There is no ‘cure”  so infected plants must be destroyed.

Replanted with healthy nursery-certified, disease-resistant plants.

Below is a list of Raspberries resistant to BD:
Boyne, *Chilcotin, Citadel, *Comox, Fairview, Restival, Glen Cova, Glen Moy, *Haida, *Heritage, Hilton, Killarney, Malling Admiral, Malling Jewel,Malling Joy, Malling Promise, Nootka, Puyallup, Scepter, Sentinel,Sumner, *Willamette.

Note: *Willamette & Chilcotin raspberries are immune to raspberry bushy dwarf.
While, Haida, Comox and Heritage are moderately resistant.

Rasp Mosaic.jpg

Cornell University

Raspberry Mosaic:
Raspberry mosaic disease is spread by aphids, symptoms vary but in general they include: stunted canes, delayed leafing out, clusters of shoots coming out from one node, and tip dieback.  Leaf symptoms are yellow spots and cupping. This disease affects black raspberries more than red raspberries, but both can be infected. The plant typically dies within  two years.

Cultivars resistant to Raspberry Mosaic are:
Canby, Carnival, Chilliwack, Comox, Glen Moy, Glen Prosen, Haida, Malling
Autumn Bliss, Malling Joy, Malling Leo, Nootka, Reveille, Skeena.

Raspberries that are resistant to both diseases are: Haida, Malling Joy, Nootka.

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Horticulture Report

Kalmia microphylla_Mountain LaurelPlant Name: Kalmia microphylla
(Note: The kalmias are very poisonous!)

Common name: Alpine laurel, Bog Laurel, Swamp-laurel, Western bog-laurel
Plant type: Dwarf Shrub
Height:   6-24 inches
Bloom Time: May – September
Flower Color: Pink to Rose Purple
Exposure: Sun to part shade
Soil Requirements: Moist, humus, acidic soil, low nitrogen
Water Needs: Average to Wet
Attributes: Native, Alpine

Habitat: Forested Meadows, Subalpine, Alpine, Wetlands
USDA Zone: 2-8

Planting Poetry

Rhonda Nowak, Master Gardener, English Composition teacher at Rogue Community College and garden writer for the Mail Tribune, gave an informative talk Monday on how to plant your container gardens with poetic flare.

Read her Literary Gardener blog here…
http://blogs.esouthernoregon.com/theliterarygardener/

Horticulture Report: Verbascum

Southern Charm

Plant Name: Verbascum (mullein hybrid)
Cultivar: Southern Charm
Plant type: Perennial
Height: 2 ft
Bloom Time:Late Spring to Mid-Summer (then again in the fall)
Flower Color: Pastel Rose to Ivory
Exposure:Full Sun
Soil Requirements: Normal to Sandy
Water Needs: Drought tolerant once established
Attributes: Large 1.5” showy flowers, deer resistant, two bloom times , Silvery Foliage
Note: Does not self-sow
Uses: Cutting garden, Perennial Garden
USDA Zone: 5-9

Horticuture Report: Helleborus

Plant Name: Helleborus orientalis ( Lenten rose)
Plant type: Perennial
Height:   12” – 15”
Bloom Time: February to April
Flower Color: Varies – Purple, Whitish Yellow, Whitish Green, Pink, Burgundy
Exposure: Full Sun in Winter, Partial Shade Rest of the Year
Soil Requirements: Well Drained Soil
Water Needs: Medium
Attributes: Early Bloomer, Deer Resistant , Waterwise plant, Long Bloom Season
Note: Mulch to maintain summer moisture
Uses: Borders, Containers, Mass Plantings, Woodland Garden
USDA Zone: 2-10