Handy Bt Trait Table
More corn hybrids contain multiple transgenic Bt insect traits, and cost of seed is steadily increasing - $300 or more per bag is not uncommon. Meanwhile, refuge requirements are changing for multi-trait corn. Some refuges remain at 20% and 'structured', planted in a block or series of rows. Others are reduced to 5% 'structured', or 5% or 10% 'in the bag' mixed with the Bt seed. This fact sheet provides a quick reference to the currently available Bt traits, their spectrum of control, and refuge percentage and location requirements. Authors: Chris DiFonzo and Eileen Cullen. Handy Bt Trait Table.

Protect your corn from cranes
-UW Extension Publication A3897
Of the 4 million acres of corn planted by Wisconsin farmers every year, almost 3 million acres are potentially at risk from damage due to the Greater Sandhill Crane. To avoid crop loss, farmers can plan ahead by selecting seed that is pre-treated with the biopesticide anthraquinone. This publication explains why cranes are drawn to cornfields and how corn seed treatment is an effective deterrent that takes corn seed off the cranes' "menu," protecting the corn crop while cranes remain in the field foraging for soil insects and waste grain. Authors: Sarah Schramm, Anne Lacy, Eileen Cullen and Jeb Barzen. Publ. A3897. 4 pp.

Two-spotted Spider Mite Management in Soybean and Corn
-UW Extension Publication A3890
Learn how to identifiy two-spotted spider mite, recognize its feeding damage to corn and soybean, assess impact of natural control agents and weather conditions, scout to determine need for treatment, and how and when to control the pest. Authors: Eileen Cullen and Sarah Schramm. Publ. A3890. 4 pp. $1.50.

Western Bean Cutworm: A Pest of Field and Sweet Corn
-UW Extension Publication A3856
Western bean cutworm (WBC), traditionally a pest of the western Corn Belt, is an emerging pest in Wisconsin. This publication explains WBC appearance, life cycle, corn scouting protocols, economic thresholds, and management options including: biological and natural controls, chemical control, and the importance of insect resistance management when using transgenic Bt corn hybrids for WBC management. Authors: Eileen Cullen and Jigyasa Jyotika. Publ. A3856. 4 pp. $2.00.

Moth Identification Guide for Blacklight Trap Catch in Wisconsin -UW Extension Publication A3855
Blacklight trap captures provide information on regional activity of Lepidoptera ("caterpillar" pests) of economic concern in field and sweet corn, soybeans and small grains. This method allows pest managers to keep ahead of developing insect pest populations by monitoring adult moth flights. This publication features photographs of 16 field crop Lepidoptera insect pests in the adult stage. A simple key features identifying characteristics, moth size, and a calendar timeline for each moth flight in Wisconsin. Tips on operating and sorting catch from blacklight traps are included. Authors: Sarah Schramm and Eileen Cullen. Publ. A3855. 8 pp. $4.25.

Insect Resistance Management and Refuge Requirements
for Bt Corn -UW Extension Publication A3857
Planting a refuge is required by the U.S. Environmental Protection Agency as a condition of Bt corn registration and to preserve effectiveness of Bt traits. Refuge corn acres do not contain the Bt trait used in the main planting. An insect resistance management (IRM) plan maintains Bt susceptible insect populations by way of a refuge. This publication answers frequently asked questions about IRM and refuge requirements for Bt corn and outlines steps to meet this requirement on farm. Authors: Eileen Cullen, Richard Proost, and Dean Volenberg. Publ. A3857. 8 pp. $4.25.

Guidelines for Insect Resistance Management (IRM) for foliar, seed and soil-applied insecticides
-UW NPM Publication I-5C-1108
Because insects reproduce quickly, there is always a risk that insecticide resistance may develop in pest insect populations, especially when insecticides are misused or over-used. This publication explains how insecticides work and presents a table with modes of action highlighted for common field and forage crop insecticides. Choosing insecticides so as to rotate modes of action, can help manage insect resistance. Authors: Eileen Cullen and Richard Proost. PDF. 2 pp. Free copies can be ordered from UW Nutrient & Pest Management Program.

The European Corn Borer -UW Extension Publication A1220
This 2005 revision of UWEX Publication A1220 describes European corn borer appearance, life cycle, corn scouting protocols, economic thresholds, and management options including: biological and natural controls, chemical control, and importance of insect resistance management when using transgenic Bt corn hybrids for European corn borer management. Authors: Eileen Cullen and John Wedberg. Publ. A1220. 4pp. $1.25.

Identification of Soybean Aphid and Look-Alike Species
-USDA and SDC329 Multistate Research Group Publication
Proper identification of pest and beneficial insects is critical to developing and implementing effective IPM programs. This pocket tri-fold publication features color images and identification tips for the soybean aphid and other insect pest and beneficial species commonly found on soybean leaves. Authors: Ames Herbert, Sean Malone, Eileen Cullen, and Susan Ratcliffe. PDF. 6 panel tri-fold. (Free copies can be ordered by calling 608-263-9146).

Reproductive Soybean Development Stages and Soybean Aphid Threshold -UW Extension Publication X1134
A visual guide to deterimining soybean reproductive growth stages R1 through R8. This publication explains the soybean aphid economic threshold of 250 aphids per plant during soybean reproductive growth stages (R1 through R5), and shows soybean stages (R6-R8) at which soybean aphid treatment is not recommended. Authors: David Fischer and Jim Fanta. PDF. 2 pp.

Visual Guide for Soybean Aphid Scouting
-UW NPM Publication I-7-2004-6M
This publication discusses field scouting and soybean aphid economic threshold information. Includes a visual reference for various aphid population densities on soybean leaves. Authors: Richard Proost and Bryan Jensen. PDF. 4 panel pocket guide. Free copies can be ordered from UW Nutrient & Pest Management Program.

Pest Management in Wisconsin Field Crops
-UW Extension Publication A3646
One convenient source for management information on the key pests of corn, soybeans, forages, small grains, and stored grains. This publication provides information for Wisconsin growers and is updated annually. Information includes insect identification, field scouting, insect economic thresholds, management recommendations (biological control, chemical control, cultural control, resistant crop varieties), and insecticide label information for key insect pests. Weed and plant disease management sections are also included. Authors: Chris Boerboom, Eileen Cullen, Paul Esker, Roger Flashinski, Bryan Jensen, Mark Renz. Publ. A3646. $8.50.

Commercial Vegetable Production in Wisconsin
-UW Extension Publication A3422
This publication provides information for Wisconsin growers updated annually with the latest recommendations for disease, insect, and weed pest management plus fertility recommendations. Authors: Chris Boerboom, A.J. Bussan, Jed Colquhoun, Eileen Cullen, Roger Flashinski, Amanda Gevens, Russell Groves, Dan Heider, Dan Mahr, Matt Ruark. Publ. A3422. $8.00.

Pest Management Fast Facts -UW NPM Publication I-1-2004-5M
This publication contains economic thresholds for insects, and some weeds, in a series of quick reference tables when scouting corn, soybean, alfalfa and small grain fields.  It also provides recommendations on how to avoid herbicide resistant weeds, and useful information on insecticide applications should pest levels exceed the economic threshold. Authors: Richard Proost, Bryan Jensen, Chris Boerboom, Dan Heider, and Eileen Cullen. PDF. 4 panel pocket guide. Free copies can be ordered from UW Nutrient & Pest Management Program.

Alfalfa Management Guide
-NCR547 North Central Regional Extension Publication
Learn how to achieve top yields to maximize profits. This 2004 revision offers new formulas for determining the risk or success of reseeding alfalfa within a year, new potato leafhopper recommendations, irrigation, and much more. Authors: Dan Undersander, Roger Becker, Dennis Cosgrove, Eileen Cullen, Jerry Doll, Craig Grau, Keith Kelling, Marlin E. Rice, Micke Schmidt, Craig Sheaffer, Glen Shewmaker, and Mark Sulc. NCR547. $8.50.

Soybean Aphid Research Update
-North Central Soybean Resaerch Program Publication
This publication discusses current soybean aphid research and what it means for farmers. Topics include: natural enemies, parasitoid wasp releases for soybean aphid biological control, aphid suction trap network, soybean aphid resistant varieties of soybeans, and scouting techniques to support management decisions. PDF. 11 pp.

Identifying Natural Enemies in Field Crops
-Michigan State University Bulletin E2949
A pocket-sized guide for beneficial insects. Divided into sections by major groups of natural enemies: spiders, beetles, true bugs, lacewings, predatory flies, and parasitoids. Plastic-coated 3.5 x 5" pages designed for field use. 46 pages. (Order a hardcopy)

Western Bean Cutworm Regional Pest Alert
-USDA and North Central IPM Center Publication
This publication describes western bean cutworm's life cycle, appearance, damage, and control. Authors: Marlin E. Rice and Carol Pilcher. PDF. 2 pp. Free copies can be ordered from the North Central IPM Center.