Knowledgebase
Raspberries in Oregon #820138
Asked February 10, 2023, 10:44 PM EST
Marion County Oregon
Expert Response
Yes, all raspberries are susceptible to disease and insect pests in our region. Some have tolerance or resistance to certain diseases (e.g. root resistance), but no one cultivar will be resistant to everything. No cultivars are resistant to Spotted wing drosophila (SWD) or raspberry crown borer, two common insect pests. You can find a list of cultivars for the Pacific Northwest and their tolerance or susceptibility to certain diseases here: https://catalog.extension.oregonstate.edu/pnw655. For some pests, there are non-chemical control options available (e.g. use netting to exclude SWD) so spraying may not be necessary. For other pests, a spray may be needed to control or manage the pest. Whether or not you need to spray would depend on which type of pest issues you are dealing with at your location. You can find tips on growing raspberries in the home garden and a list of common pests and their control methods in this OSU Extension publication: https://catalog.extension.oregonstate.edu/ec1306.
Primocane fruiting types are best adapted to container growing. You will want a 12-25 gallon pot with holes drained in the bottom for drainage. If planting in the ground, plant into a mound/row and space plants 2 to 2.5 feet apart within the row and maintain the row to be 1 to 1.5 ft wide. Or you can plant into a framed raised bed to contain the plants (you may need to put landscape fabric or weed barrier at bottom of the framed bed to keep suckers from growing under the framed bed).
Raspberry suckering is how the plants rejuvenate and spread, so removing the suckers will be a regular task. You can remove any suckers with a shovel or hoe that appear outside of the row (to maintain the 1-1.5 foot row). You can try digging them out or rototilling them. Use drip irrigation, this will keep the water where you need it and helps prevent suckers from popping up in the aisles in search for water. I have seen people use root barriers (like the ones used to contain bamboo) with some success. The barriers should be dug in and put in place at the time of planting.
Of the primocane fruiting (fall-bearing) varieties, I really like the Caroline and Vintage. If you want a yellow fruiting type, try the Fallgold. For floricane fruiting (summer-bearing) varieties, I like Cascade Delight and Prelude.