马铃薯缺陷和疾病来自美国

八月 01, 2012

Botrytis blight a problem for Michigan potatoes this year

According to a report from Michigan State University, Botrytis blight is causing problems in potatoes throughout Michigan this season.

七月 26, 2012

US organic potato growers have no approved zebra chip options

While other potato growers use preventative insecticide applications to protect their crops from a new disease to the Pacific Northwest, called zebra chip, Fred Brossy can only wait and see if it hits him.

Late blight (Phytophthora Infestans) on potato leaf

七月 05, 2012

New York State growers warned of late blight

Home gardeners and commercial growers are alerted of the potential introduction of late blight this growing season, as it has been confirmed in Suffolk County.

七月 04, 2012

Idaho potato growers concerned over zebra chip

Liberibacter, the bacterium responsible for zebra chip, has been found in an Idaho potato field.

七月 02, 2012

AgriLife Research zeroes in on potato disease insect

Do potato psyllids migrate from one location to the next, starting in northern Mexico and moving northward as the potato season progresses, or are psyllid populations local?

七月 02, 2012

Idaho Potato Psyllids test positive for zebra chip disease

The University of Idaho extension today announced that the potato psyllids found last month in Idaho tentatively tested positive for Liberibacter, Zebra Chip disease.

六月 28, 2012

Two potato psyllids found in Twin Falls spud field

Two adult potato psyllids were found on yellow sticky cards that were collected June 19 from a Twin Falls County potato field, according to an alert issued Tuesday by University of Idaho Extension staff.

六月 19, 2012

NDSU Potato Blightline - Recommendations for June 18

Late blight has not been reported in North Dakota, Minnesota or Manitoba. With the fair weather, late blight severity values are unchanged since Friday.

六月 19, 2012

Pennsylvania potato, tomato growers hit by late blight, should remain vigilant

Late blight, the same disease that caused Ireland's potato famine in the 19th century, was confirmed in three Pennsylvania counties last week.

六月 15, 2012

Idaho growers told to intensify hunt for potato psyllids

Researchers recommend potato growers in the Pacific Northwest intensify their field scouting programs for the potato psyllids that spread the crop disease zebra chip.

六月 12, 2012

Volunteer spuds could serve as source of zebra chip infection

Oregon State University researchers say they've found two fields in their region harboring thousands of volunteer potato plants infected with the Liberibacter bacterium that causes the crop disease zebra chip.

六月 04, 2012

North Dakota State University Potato Blightline to Operate in 2012

The Plant Pathology Department at North Dakota State University will again be providing the potato Blightline service at no charge to the potato industry of North Dakota and western Minnesota in 2012.

五月 14, 2012

Clarification on new PCN findings in Idaho.

A highly cited recent article in the Idaho Falls based Post Register stated that there were new detections of Potato Cyst Nematodes in Idaho. The headline also made it to PotatoPro's News updates. The Idaho Potato Commission has provided a statement c...

五月 10, 2012

Potato cyst nematode found in more eastern Idaho fields, but eradication efforts working

Officials with the U.S. Department of Agriculture say a microscopic parasite that damages potato crops has been found in three more eastern Idaho fields, bringing the number of infected fields to 15.

五月 06, 2012

Focus on Potato webcast on Internal Heat Necrosis of potato

Internal Heat Necrosis, or IHN, has many aliases. They include internal brown spot, physiological internal necrosis, internal browning, internal brown fleck, and chocolate spot. Whatever you choose to call this physiological disorder, it is an economi...

四月 30, 2012

Researchers barcode Colorado potato beetle for enhanced tracking and control

Barcodes may bring to mind the sales tags and scanners found in supermarkets and other stores. But U.S. Department of Agriculture (USDA) scientists are using 'DNA barcodes'to monitor insects that damage crops as diverse as wheat, barley and potatoes, and to make pest management decisions.

四月 18, 2012

Pest Pros Inc acquired by Wisconsin River Co-op

Wisconsin River Co-op recently announced that it has purchased Pest Pros Inc., an independent crop consulting firm and plant disease diagnostic laboratory located in Plainfield, Wisconsin. Pest Pros provides a range of crop management services to assi...

四月 17, 2012

Maine looks to fungicides to save potatoes

Much of Maine's seed potato supply for this year is infected with blight, and the state has asked the federal government for an emergency exemption to make an effective but expensive toxic seed treatment available to growers.