New approaches to frost control

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

ADVERTISEMENT

  • 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 [...]

  • 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 [...]

  • 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 [...]

  • 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 [...]

  • 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 [...]

  • 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 [...]

  • 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. [...]

  • 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 [...]

  • 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 [...]

  • 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 [...]

  • Enhancing biocontrol

Enhancing biocontrol

  • February 1st, 2013

Knowing when and where natural enemies, such as the green lacewing, are active is critical in order to conserve them. Large inset: Garden orb web spider in apple orchard. Small inset: Adult ladybug feeding on aphids.

This is the first article in an eight-part series highlighting results of a five-year [...]

  • Frost protection strategies

Frost protection strategies

  • February 1st, 2013

Tree and vine crops can be won or lost because of one or two critical degrees of cold temperature, so, ultimately, the best method of frost protection is good site selection. But even the best sites won’t be perfectly freeze-free.

Is there a good way to recover those one or [...]