New approaches to frost control

The height of the vines influences how they fare during cold weather.

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  • Good to Know: New traps and lures for tree fruit pests

Good to Know: New traps and lures for tree fruit pests

  • March 1st, 2013

Generations of growers have monitored the key pests in their orchards. Over the years, traps and lures available to growers have evolved. Yet, the goal has always been to develop easy-to-use, sensitive, and selective trapping systems. Sorting through pails baited with fermenting fruit juice filled with a writhing mass [...]

  • The Top Five

The Top Five

  • March 1st, 2013

Before you buy a new orchard sprayer, you’ll want to think about it a bit. A sprayer is a major investment, about $50,000, not something to be taken lightly. And what you buy is likely to be with you for many years.

Dr. Andrew Landers, an agricultural engineer at New [...]

  • For the birds

For the birds

  • March 1st, 2013

Preliminary estimates of bird damage to fruit crops made during 2012 show what fruit growers already know: Fruit production can be for the birds—at least a good part of it.

The estimates were made in the Pacific Northwest, New York, and Michigan as part of a $2 million project funded [...]

  • A new tool for IPM

A new tool for IPM

  • March 1st, 2013

In recent years, the use of insect models has become an important tool in pest management. Current models help predict key seasonal events in a pest’s life history, such as adult emergence or egg hatch. Pest managers can use this information to better time monitoring activities or the application [...]

  • Stinkbug is strong flier

Stinkbug is strong flier

  • March 1st, 2013

The stinkbug injects saliva into the fruit and then sucks out the juice, causing brown areas in the flesh that can resemble bitter pit.
PHOTOS BY NIK WIMAN, OREGON STATE UNIVERSITY

The brown marmorated stinkbug continues to spread, coming alarmingly close to commercial fruit-producing regions of the Pacific Northwest, and [...]

Bug pheromone studied

  • March 1st, 2013

In tree fruit pest management, most monitoring and mating disruption technologies are based on phero­mones that female insects release to attract males. For example, sex pheromones are used to lure male codling moths to traps or in order to mimic females and confuse the males to reduce their chances [...]

Food Safety Committee guides research

  • March 1st, 2013

The Pacific Northwest Food SafetyCommittee, an industry advisory group representing tree fruit growers, packers, and researchers, was organized in 2007 to guide the Northwest tree fruit industry and Northwest Horticultural Council on food safety issues.

Since its inception, the committee has worked with industry and university food safety experts and [...]

  • An expensive disorder

An expensive disorder

  • February 15th, 2013

Photos courtesy of Bhaskar Bondada

A shrivel is not just a shrivel.

Of the various types of shrivel impacting grape quality, sour shrivel is especially unwanted because it renders the fruit unsuitable for winemaking.

The disorder, found in vineyards around the world, is known by several names. In California, researchers have begun [...]

  • Fireblight-resistant apple

Fireblight-resistant apple

  • February 15th, 2013

Ladina, a new high-quality apple variety with low susceptibility to fireblight and mildew, has been developed by a Swiss research station. The variety is also scab resistant. Ladina, bred at the Swiss federal research institute Agroscope­ ­Changins-Wädenswil, comes from a cross of Topaz and Fuji made in 1999. The [...]

  • Saving water in early peaches

Saving water in early peaches

  • February 15th, 2013

Scientists with the U.S. Department of Agriculture, looking for ways that growers can save water without affecting fruit quality or yields, see potential for using deficit irrigation on early season California peach trees. Their research includes development of a tool that can tell farmers precisely when irrigation is needed.

USDA [...]

  • Top 5 points when installing irrigation

Top 5 points when installing irrigation

  • February 15th, 2013

More and more, fruit growers—even in wet climates—are installing irrigation systems at planting time. While growers in Washington State, Idaho, and other arid western areas need to provide water because rainfall is short, growers in eastern states like New York and Michigan face droughty months that can kill young [...]

  • Irrigate early if winter is dry

Irrigate early if winter is dry

  • February 15th, 2013

Bleeding (inset photo) caused by root pressure is associated with bud swell and bud break. Bleeding sap is collected from a potted Merlot grapevine in a Washington State University study looking at the consequences of dry soil during bud swell and bud break.

Adequate soil moisture in the spring is [...]