News on Crop Protection from Northern America

Damage caused by the potato tuber moth (Courtesy: Katja Poveda).
January 13, 2018
When pests graze certain potatoes, yields double
When some Colombian potato varieties are lightly grazed by a pest, the plants respond by growing larger tubers, at times doubling their yields. Researchers see an opportunity and want to know more...
The Colorado potato beetle, also known as the Colorado beetle is a major pest of potato crops.
January 13, 2018
Lunchtime is over for the Colorado potato beetle
Chemicals in the leaves of potato plants, produced naturally by the plant, may hold the key to a new way to control Colorado potato beetles - a major pest for potato growers.
The fall armyworm (Spodoptera frugiperda) feeds on a wide range of plants, including occasionally on potatoes (shown). This insect cannot over-winter in areas where the ground freezes. (Courtesy: Ontario CropIPM)
December 11, 2017
Certis USA Licenses New Virus Technology for Control of Fall Armyworm
Certis USA has entered into an agreement with Corpoica, the Colombian Corporation for Agriculture Research, to license Corpoica’s Spodoptera frugiperda nucleopolyhedrovirus (SfMNPV) strain NPV003 and formulation technology for a biopesticide against the fall armyworm (Spodoptera frugiperda).
From the archive
Potato Expo 2018 will feature live streaming Potato TV 'The Eye'
September 23, 2017
Potato Expo 2018 goes live with streaming potato TV 'The Eye'.
Potato Expo 2018 announces live streaming Potato TV throughout the event. Voting for the presentations on the Innovation Hub 'Main Stage' is now open.
From the archive
During an aerial pesticide application demonstration at Hoff Farm, pilot Leif Isaacson (second from right) conducted fly-overs to show participants the capabilities of the spray plane. EPA staffers learned how the spray can be carefully controlled so that
August 31, 2017
Potato growers host farm tour for EPA staffers
The National Potato Council (NPC) led a delegation of 6 U.S. Environmental Protection Agency (EPA) staff on a tour of Idaho potato fields during the week of August 14.
From the archive
NDSU Professor Harlene Hatterman-Valenti talking about her research into the effects of the herbicides dicamba and glyphosate on potatoes. One of her findings is that weather can affect the level of harm done to potatoes by dicamba.
August 29, 2017
Potatoes look good in North Dakota, Minnesota
Red River Valley potato growers generally have avoided drought and deluge this growing season. That bodes well for the soon-to-begin 2017 harvest.
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Microtuber potato cultivars used in research by the Wisconsin Seed Potato Certification Program in a growth room at the Biotron Laboratory at UW–Madison (Courtesy: Bryce Richter)
August 05, 2017
New Wisconsin State laws force potato growers to apply best practices
Wisconsin Governor Scott Walker signed two new measures involving the potato industry last Wednesday. One law makes use of certified seed potatoes mandatory, the other enforces a faster response to the presence of late blight
From the archive
An adult potato psyllid, the insect responsible for the spread of Zebra Chip disease (Candidatus Liberibacter solanacearum) in potatoes
(Courtesy: Don Henne, Texas A&M AgriLife Research)
July 03, 2017
University of Idaho reports light potato psyllid pressure
Pressure from the tiny, winged insects that spread zebra chip disease in potatoes has been light in Idaho this season, emboldening some Idaho farmers to scale back on their pesticide programs.
From the archive
Colorado potato beetles can decimate spud crops by devouring the plants’ foliage.
June 27, 2017
To protect crops, farmers could promote potato beetle cannibalism
UMaine scientists say farmers could try to protect their potato crop by utilizing agricultural practices — including crop rotations and push-pull strategies — to create field conditions that favor Colorado potato beetle cannibalism.
From the archive
Oddly shaped potato tubers are a risk from both glyphosate and dicamba exposure, according to North Dakota State University Research
May 07, 2017
Dicamba drift a new danger for potato growers
Soybean producers are gearing up to plant soybeans that are tolerant to both glyphosate and dicamba herbicides. Potato growers should be aware that both glyphosate and dicamba drift can cause irreparable damage in neighbouring potato crops
From the archive
Dr. Ada Szczepaniec discusses her greenhouse study on potato psyllid resistance to neonicotinoid insecticides.
April 02, 2017
Neonicotinoid insecticides losing efficiency in potato psyllid control
The potato industry may be losing a mainstay in the battle against psyllids, according to a recent Texas A&M AgriLife Research study.
From the archive
Soil fumigation in Wicklow, New Brunswick. The field is fumigated with chloropicrin in the fall of the 2015, as part of a trial McCain Foods is conducting with its processing potato growers on both sides of the border. (Courtesy: Triest Ag Group)
February 07, 2017
Potato growers in Maine apply soil fumigation in a trial of McCain Foods
French Fry manufacturer McCain Foods has started trials examining soil fumigation with several of its potato growers in Maine (United States) and New Brunswick (Canada).
From the archive
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Monsanto Shareowners Approve Merger with Bayer
December 14, 2016
Monsanto Shareowners Approve Merger with Bayer
Monsanto Company (NYSE: MON) announced that at a special meeting of shareowners held on December 13, shareowners of the company approved the merger of Monsanto with a wholly owned subsidiary of Bayer Aktiengesellschaft.
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The North-western European Potato Growers (NEPG) expect in the 5 covered countries (NL, B, FR, GB, DE) a lower production of potatoes (seed and potatoes.for starch production not included) compared to last season.
September 21, 2016
NEPG estimate for the 2016 potato harvest: More acres, less production and a lot of uncertainty
The North-western European Potato Growers (NEPG) expect in the 5 covered countries (NL, B, FR, GB, DE) a lower production of potatoes (seed and potatoes.for starch production not included) compared to last season.

From the archive
Adult Potato Psyllid (Bactericera (paratrioza) cockerelli) (Courtesy: Gary McDonald)
August 11, 2016
Potato Psyllid Alert for North Dakota
Potato psyllids have been reported in specific fields in western and central North Dakota. At this point populations are not widespread.
From the archive
In the Red River Valley, 2016 is shaping up to be the year of the Colorado Potato Beetle (Leptinotarsa decemlineata).(Courtesy: @spudology / twitter)
July 02, 2016
Colorado Potato Beetles are munching on in the Red River Valley
According to the University of Minnesota Extension 'Spudbug' Newsletter, it is shaping up to be a Colorado Potato Beetle (CPB) year in the Red River Valley.
From the archive
Robert Green at work on his farm in Bedeque, Prince Edward Island (P.E.I.)
June 16, 2016
Potato Farming on Prince Edward Island: Trying Something New
For years, PEI potato farmer Robert Green has been growing barley and canola in rotation with potatoes. This season, he’s decided to try something new.
From the archive
Dr. Ada Szczepaniec, Texas A&M AgriLife Research entomologist, examines psyllid activity. (Courtesy: Texas A&M AgriLife Communications photo by Kay Ledbetter)
April 25, 2016
Growing Insecticide Resistance of Potato Psyllids investigated at AgriLife Research
Entomologist Ada Szczepaniec at Texas A&M AgriLife Research is addressing the concern of growing resistance of potato psyllids to the neonicotinoid classification of insecticides.
From the archive

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