Digger magazine

Written to make you a nursery industry expert.

You are here: Home / Archives for Pests and Diseases

Handbooks deal with insects, diseases and weeds (oh my)

By — Posted

Oregon State University has published three new handbooks, aimed at gardeners, which provide the latest ways of dealing with insect pests, weeds, and plant diseases. There are print editions that can be purchased from bookstores, from an online store, or by calling the OSU Extension and Experiment Station Communications at 800-561-6719. There are also online […]

Another spotted wing drosophila meeting planned

By — Posted

We just received the following announcement from Oregon State University: On Tuesday, March 30, 2010, 1-5 p.m., Oregon State University will host a meeting to provide the latest information available on the Spotted Wing Drosophila pest which is threatening many fruits grown in California and the Pacific Northwest. The meeting will be held at the […]

Oregon, California growers sue to reopen South Carolina plant market

By — Posted

Nurseries can’t afford to let disease spread. They take seriously the threat of Phytophthora ramorum, commonly known as sudden oak death – and so does the USDA Animal and Plant Health Inspection Service (APHIS). For several years, APHIS has had rules in effect to protect ecosystems and plant material. Nurseries in Oregon and California have […]

New plants added to P. ramorum regulated list

By — Posted

Officials with the USDA Animal and Plant Health Inspection Service Plant Protection and Quarantine program (PPQ) issued a federal order on Monday (Feb. 22) adding 10 species to the list of plants regulated for Phytophthora ramorum. The plants have been identified them as hosts of the pathogen, and now will be regulated in accordance with […]

Warm winter is a matter of degrees

By — Posted

It’s been a warm first couple months of 2010 in Western Oregon, no question. You might be surprised just how warm. Here’s some information from Robin Rosetta that puts it into perspective: With our warm spring, you might want to consider using degree days (heat unit accumulation) to monitor the phenological status of your crops […]

‘Grower to Garden Center: An Industry Seminar’ set for Jan. 20

By — Posted

“Grower to Garden Center: An Industry Seminar,” will be presented all day on Jan. 20 by the Greenhouse and Retail chapters of the Oregon Association of Nurseries. The proceedings will take place from 8 a.m.-5 p.m. (with a social hour afterwards) at Bauman Farms, 29898 Howell Prairie Road, Gervais, Ore. Topics will include grower and […]

Alaskan officials concerned about Christmas tree frogs

By — Posted

There have been several news reports the last few days about Pacific chorus frogs hitchhiking from Washington state to Alaska, including this AP dispatch. Officials in the Land of the Midnight Sun are worried that the frogs, not native to Alaska, could spread disease to native frogs. Reports indicate the offending trees (just two so […]

European grapevine moth detected in California

By — Posted

A pest never before found in the United States has been detected in California’s Napa Valley. The European grapevine moth, Lobestria botrana, which feeds primarily on the flowers and fruits of grape plants (Vitis spp.) and spruge laurels (Daphne gnidium). Other hosts include blackberry (Rubus fruticosus), gooseberry (Ribes ssp.), black and red currant (Ribes nigurm), […]