IPM in the News

Bruce Potter, Extension IPM and Ken Ostlie, Extension entomologist

The Minnesota Crop News Blog just posted a new article on factors growers need to consider when deciding if they need to plant Bt hybrids.  

New guidelines for pesticide plant-back restrictions have been published.

The 9th International IPM Symposium program committee is now welcoming proposals for multi-speaker sessions at the 2018 IPM Symposium.

The 2017 Midwest Vegetable IPM Production Guide is now available! 

The University of Minnesota has published the 2016 field crop trial results. 

[10/5/16] Dr. Chris DiFonzo, Michigan State University, and Midwest Entomologists publish open letter to the GMO seed companies regarding concerns about failure of Cry1F for Western bean cutworm control.

[9/22/2016] Palmer amaranth detected in Minnesota. MDA asks landowners to report possible infestations; more info from Extension.

[9/21/2016] Jeff Gunsolus, Bruce Potter and Roger Becker

Minnesota Crop News has reported that Palmer amaranth may be present in pollinator plantings.

[9/14/2016] Chemical giant Bayer agrees to buy Monsanto for $66 billion.

[8/26/2016] Minnesota Crop News has reported that a single adult brown marmorated stinkbug was collected in sweep net samples from a soybean field in Dakota County on August 17, 2016. 

[8/25/2016] The Minnesota Department of Agriculture (MDA) is pleased to announce a new round of funding for the Sustainable Agriculture Demonstration Grant Program. 

[8/23/2016] Lisa Behnken, Fritz Breitenbach, Jeff Gunsolus, Phyllis Bongard, Liz Stahl

Minnesota Crop News has published an article on palmer amaranth.

[8/17/2016] A new study published by Anh Tran, Tavvs Alves & Bob Koch, has found Sulfoxaflor to be less harmful to beneficial predators of soybean aphids.

[8/10/2016] Insecticides are an important tool in the IPM toolbox for protecting crop yields from pests. However, we need to keep in mind that many of the insecticides we use to manage crop pests are also toxic to beneficial insects, such as predators and pollinators. This article will provide an overview of some considerations for reducing the risk of impacting pollinators (e.g., bees and some flies) when foliar insecticide applications are made to crops. 

[8/8/2016] Growers now have access to two more miticides for use against twospotted spider mites in soybean. These miticides are Agri-Mek SC (Syngenta) and Zeal SC (Valent). These are welcomed additions to the limited suite of chemicals for management of twospotted spider mites in soybean. They represent insecticide groups (modes of action) not used for soybean aphid. 


[8/3/2016] History has shown us many times that over-reliance on pesticides often results in development of pesticide resistance in pests. Last summer in parts of southern Minnesota, some pyrethroid insecticides (bifenthrin [e.g., Brigade, Tundra , Hero and others] and lambda-cyhalothrin [e.g., Warrior and others]) failed to provide adequate control of soybean aphid. Historically, these have been among the top performing pyrethroid insecticides for soybean aphid management. Follow-up laboratory bioassays confirmed resistance  (10- to 44-fold resistance) to these insecticides in a soybean aphid population collected near Lamberton, MN.

[7/28/2016] Japanese beetle, an invasive pest from Asia, is making its presence known. These large beetles with shiny green- and copper-colored bodies can be found feeding on many plants, including soybean, in agricultural areas that are in proximity to the Twin Cities, Rochester, and other urban areas in southeastern Minnesota. This beetle is not yet widely distributed in the state and is not likely to be in fields outside of these areas in southeastern Minnesota.

OMAHA (DTN) — The U.S. Environmental Protection Agency has scheduled a scientific advisory panel meeting this fall to review the widely used herbicide glyphosate, but offers no indication in a Federal Register notice Tuesday, if the panel will consider the conclusions of an EPA cancer assessment review committee that found glyphosate poses no significant cancer risk.

soybean aphidBefore soybean aphid was identified as a pest of soybean in the U.S. in 2000, insecticide applications to northern soybean crops were rare, targeting sporadic insect and mite outbreaks. Although large infestations have been relatively uncommon since the early to mid-2000’s, the soybean aphid is unquestionably still the key insect pest of soybeans in many North Central states. A tremendous amount of research and observational data has been obtained for this pest since its introduction and we have the tools and the knowledge to manage this pest effectively.

WASHINGTON, D.C. (DTN) — USDA boosted corn acres above pre-report expectations to 94.15 million acres, up 7% from last year. Soybean acres also rose to 83.69 million acres, up 1% from last year.