• MCP results influenced by temperature

MCP results influenced by temperature

  • June 1st, 2012

Jim Mattheis

Many factors influence how SmartFresh (1-methylcyclopropene) works, which means that there are several potential tools that packers can use that will result in more predictable ripening of pears at different points in the season, says Dr. Jim Mattheis, postharvest physiologist with the U.S. Department of Agriculture in Wenatchee, [...]

Future pear research area

  • May 15th, 2012

AVG could be a valuable new tool, along with NAA, for preventing premature fruit drop in pears. Some questions for future research are:

Can the initiation of internal ethylene development in pear be predicted to better time applications? Ethylene curves have been developed for pear once harvested, but not for [...]

New group begins work

  • May 15th, 2012

A new marketing and research group has consolidated the California cherry industry into one voice, says Chiles Wilson, chair of the new organization that became effective in early April.

The California Cherry Marketing and Research Program supersedes the California Cherry Advisory Board, which had represented growers of Bing, Rainier, Van, [...]

Neonicotinoids and bees

  • May 15th, 2012

A spate of new studies came out this spring, all of them seeking to link neonicotinoid insecticides to mortality in honeybees, bumblebees, and several kinds of native bees, and all of the studies getting wide publicity.

Reaction among agricultural entomologists varied. Some criticized the studies as being scientifically flawed. None [...]

  • Fruit drop is not simple to manage

Fruit drop is not simple to manage

  • May 1st, 2012

Dr. Rongcai Yuan made important contributions to understanding fruit abscission processes. He died a year ago of cancer at age 45.
Photo by Steve McArtney

Scientists have made great progress in recent years homing in on answers to ­mysteries surrounding why apples fall off trees—so they can help growers make [...]

  • Watch out, codling moth!

Watch out, codling moth!

  • May 1st, 2012

Left: A female Neoscona oaxacensis orb-weaving spider. Top: Cheiracanthium spiders are known as yellow sac spiders. They are usually pale colored and are 1/5 to 3/8 inch long. Gut-content analysis has shown evidence of feeding on codling moth. In central Washington, C. mildei is the species most commonly found. [...]

What do rootstocks do

  • May 1st, 2012

Apple growers first became interested in grafting scions onto rootstocks when they realized that dwarfing rootstocks could tame vigor, bring trees down to manageable size, and cause them to bear fruit earlier.

The question, “How do rootstocks do that?” was never fully answered. And a new question is becoming important: [...]

  • Wide scope for rootstock research

Wide scope for rootstock research

  • April 15th, 2012

International Fruit Tree Association members tour a research plot at Wapato, Washington, where a wide range of apple rootstocks are being compared.

Rootstock development is a huge area of research that goes beyond studying the survival, size, and yield efficiency of rootstocks, says Dr. Terence Robinson, horticulturist at Cornell University, [...]

Growers vote on special assessment

  • April 15th, 2012

Washington State tree fruit growers will be asked to pay a special research assessment to strengthen research and extension programs at Washington State University.

The university has launched a major fundraising campaign with a goal of raising a billion dollars overall to fund priority programs. Of the total, $42 million [...]

Root2Fruit group will request research funding

  • April 15th, 2012

A group of scientists from around the country aims to develop new tree fruit rootstocks for the tree fruit industry with the goal of increasing orchard profitability. The group, which calls itself Root2Fruit, plans to submit a proposal in 2012 to the U.S. Department of Agriculture for funding through [...]

Who’s eating codling moth?

  • April 15th, 2012

This article is part of a series on the multistate project “Enhancing Biological Control in Western Orchards.”

How big a role can predators play in controlling codling moth in fruit orchards? That’s a question that Dr. Thomas Unruh, geneticist with the U.S. Department of Agriculture in Yakima, Washington, wants to [...]

  • Irrigating cherry orchards efficiently

Irrigating cherry orchards efficiently

  • April 1st, 2012

Lapins fruit quality was excellent in all three years of the deficit irrigation study.
Todd Einhorn

A significant portion of sweet cherry acreage throughout California and the Pacific Northwest faces water challenges. Sustainable irrigation practices need to be developed to efficiently manage limited water supplies. The most readily available information [...]