New approaches to frost control

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

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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 [...]

  • 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 [...]

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 [...]

  • 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 [...]

  • Vigor control and promotion of fruiting of pear trees

Vigor control and promotion of fruiting of pear trees

  • February 15th, 2013

Considerable time is required to recoup the increased establishment costs that accompany higher density plantings given the precocity challenges associated with commercially available pear rootstocks and scions. Limited fruiting and excessive vegetative growth create an unprofitable scenario that can be difficult to manage. The main objective of our current [...]

  • Natural enemy inventory

Natural enemy inventory

  • February 15th, 2013

Herbivore-induced plant volatile (HIPV) lure to attract natural enemies in orchards.

Monitoring is one of the key components of any successful integrated pest management program, because it provides a window into what is going on in an orchard. This is true not only for pests but also for natural enemies. [...]

  • 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 [...]

  • Good Stuff

Good Stuff

  • February 15th, 2013

Hydroponic irrigation
New technology combining hydroponics and drip irrigation is being used to grow fruit trees, offering benefits to orchardists in water-starved regions. The Hydroponic Irrigation Adaption System or HIAS, has been patented by Jorge Labrador Agustin of Jormar Fruits, a Spanish company with 30 years of tree fruit [...]

  • 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 [...]

  • A replacement for Tiberon

A replacement for Tiberon

  • February 15th, 2013

Nurseries working to provide apple growers with the well-branched, “feathered” trees they want to plant can use the chemical MaxCel and will find it as effective and safer than Tiberon in inducing branching.

That’s the good news coming from Cornell University researchers and nurseries that have worked with them. They [...]

  • 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 [...]

  • 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 [...]