马铃薯缺陷和疾病 来自北美地区

Potato growers and scientists from Washington, Oregon and Idaho congregated at Washington State University’s Othello Research facility at Cox and Booker roads during Potato Field Day June 24 to exchange pertinent facts about pest control and water mana...

Despite hot dry weather, Late Blight was found in a field in northern Walsh County in northeast North Dakota late last week.This is in addition to finds in Dickey County in southeast North Dakota and in the Carberry and Carman areas of southern Manitob...

Potato late blight has been found and confirmed in the south Columbia Basin and Washington State University plant pathologist Dennis Johnson says more confirmations of the disease are expected this week. He says the disease was found in two locations. ...

Wild potato germplasm that offers resistance to some major potato diseases has been identified by Agricultural Research Service (ARS) scientists.

Científicos del Servició de Investigación Agrícola (ARS) han identificado germoplasma de una especie silvestre de papa que ofrece resistencia a algunas enfermedades principales de la papa.

A fungus that could seriously damage Manitoba's multimillion-dollar commercial potato industry has been spotted at commercial nurseries, Manitoba Agriculture says. The provincial agency has issued a warning to residential gardeners after "late b...

When a major South American pest infests potato tubers, the plant produces bigger spuds, reports a study by Cornell, University of Goettingen and National University of Colombia researchers.The secret is in the spit, write the researchers online in the...

Worldwide, late blight is rated the worst of potato diseases. Intermittently since the 1990s, spores have turned up in commercial fields of Idaho, Washington, California and Oregon. When the spore is present it reproduces like a wildfire in cool, mois...

Developing a chemical attractant to monitor and manage the potato psyllid is the goal of a new cooperative agreement signed in March between the Agricultural Research Service (ARS) and the University of California (UC) at Riverside.

Potatoes are America’s number one vegetable crop. Per capita, Americans consume about 130 pounds annually.

Many readers are no doubt aware of last summer's late-blight infestation, in which a fungus, Phytophthora infestans, decimated local tomato and potato plantings. The fungus overwinters in southeastern United States but does not generally overwinter in ...

Since 2000, a mystery disease has struck some potato fields in Texas, Arizona, California, Nevada, and other western states, reducing tuber yields and quality.

The impact of late blight to potato growers in Michigan is clear and we estimate that many growers with crops going in to long-term storage will spend up to $350/A in crop protection products alone (not including application costs). Even such intense c...

Farmers in southern and central Maine have already reported cases of late blight in potato and tomato crops. Now the disease has spread to northern Maine.

Despite their microscopic size, Columbia root-knot nematodes (CRN) have potential to inflict huge losses—about $40 million annually—by tunneling into potatoes to feed.

Maine potato growers are thriving thanks to a late blight spraying advice offered by the University of Maine's cooperative extension program.

Leaf samples taken last summer by provincial potato specialists and ag chem firm Bayer CropScience throughout Canada show "widespread"presence of fungi that have mutated to resist the fungicides used most often to control them.The sampling pr...

The humble spud has few natural enemies (beside humans), but common scab disease is one that threatens the whole potato industry. Common scab is one of the most prevalent and costly diseases for the potato industry worldwide. The vegetable research t...