Recent Comments
Categories
Category Archives: Horticulture
Low heat units indicate late start to 2023 season
Winter is holding us tight this year in the Willamette Valley, but it may be finally losing its grip. A break in the rain and warmer temperatures in the forecast will be a relief for hazelnut growers with orchards susceptible … Continue reading
Hazelnut aphids are out
We have been noting aphid emergence over the last two weeks, but there remain a lot of unhatched eggs around the buds and on the bark. The unhatched eggs remaining may be primarily filbert aphid, Myzocallis coryli, as most of … Continue reading
Digging trees to determine nitrogen content
Last week the digging and removal of these ‘Jefferson’ trees marked the beginning of the end of a long experiment. Back in April of 2019, we applied some very expensive urea fertilizer around the drip line of theses trees. The … Continue reading
Organic production research – Orchard Crops Research and Extension Program
Organic Hazelnut Farm Tour E-Handout, Aug. 19, 2022 Nik G. Wiman (+ Team), Orchard Specialist & Associate Professor contact: Nik.Wiman@oregonstate.edu Organic Pest Management Aphids Aphid management tactics Aphid biological control Filbertworm Organic sprays BMSB Organic sprays Biological Control Cultural Practices … Continue reading
Posted in Horticulture, IPM
Tagged aphids, cover crop, filbertworm, grafting, oil, organic, pruning, training
Leave a comment
Field grafting hazelnuts
Field grafting of hazelnuts has been practiced for many years in Oregon but is not a widespread or common practice. Some in the industry such as David Smith of the OSU Hazelnut Breeding Program have a wealth of knowledge on … Continue reading