Digger magazine

Written to make you a nursery industry expert.

You are here: Home / Archives for Pests and Diseases

Plant disease handbook is now on Facebook

By — Posted

Everybody’s doing it. It doesn’t matter if they’re a person, a company, an organization, a book or even a marketing concept — everybody’s getting onto Facebook. And as it turns out, the Pacific Northwest Plant Disease Management Handbook is no exception. They’ve launched a Facebook fan page as well. Evidently, it will be used to […]

An enemy for the emerald ash borer

By — Posted

We don’t have the emerald ash borer in Oregon, and we hopefully never will. But this blog post talks about a new way of detecting fighting the tree-killing beetle — predatory wasps. Evidently the wasps will quickly find the beetle if it is present in the area. This definitely beats the method of watching for […]

USDA awards $2.7 million for research into plant pathogens

By — Posted

The U.S. Department of Agriculture’s National Institute of Food and Agriculture has awarded group of colleges, led by Virginia Tech, a $2.7 million grant to conduct research on integrated management of zoosporic pathogens and irrigation water quality. Researchers will look for biological control methods for fighting Phythophthora, Pythium and other pathogens. Researchers will also “develop […]

ODA plans meeting on brown marmorated stink bug

By — Posted

With a common name like “brown marmorated stink bug,” one wouldn’t expect Halyomorpha halys to be a very pleasant insect to deal with – and it isn’t. The bug from Asia has become a major agricultural pest in the United States over the past 14 years, since arriving in Pennsylvania in 1996. It arrived in […]

Read your Farwest Edition of Digger

By — Posted

Did you miss the 2010 Farwest Show? Well, you can still pick up the Farwest Edition of Digger magazine! Here are just a few of the useful articles (PDF) that appeared inside: The original green walls — Whether formal or more natural looking, these hedging options can denote property lines and provide necessary screening Dazzling […]

Approval process announced for legal butterfly bush cultivars

By — Posted

Some say the butterfly bush is beautiful, but in Oregon, it’s also invasive. On January 1, 2010, the Oregon Department of Agriculture’s ban on butterfly bush (Buddleja davidii and Buddleja varabilis) as a noxious weed took effect. This means the plant no longer can be transported, sold, offered for sale, grown or propagated in Oregon, […]

Missouri bans walnut products from nine states

By — Posted

In an attempt to halt the devastating spread of thousand cankers disease, which afflicts black walnut trees, the state of Missouri has issued an emergency quarantine banning the importation of “walnut products” from nine Western states. According to Missouri officials, “The ban applies to nursery stock, unprocessed lumber, logs, wood chips, mulch and other products […]

South Carolina rescinds regulation that blocked trade

By — Posted

Nursery growers in Oregon and California are once again free to ship their plants to South Carolina. Officials in that state have rescinded Regulation 27-78, which imposed state-based rules pertaining to Phytophthora ramorum. The Oregon Association of Nurseries (OAN) and the California Association of Nurseries and Garden Centers (CANGC) sued to overturn the regulation, on […]