July 2006

(31 July)

Replanted Corn Fields Catching Up

Bob Nielsen, Purdue Univ.

(31 July)

Weather And USDA Reports

Darrel Good, Univ. of Illinois

(31 July)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Southern rust identified in some Nebraska corn fields
• Selecting wheat seed for complementary traits
• Selecting seed to manage seed-transmitted wheat diseases
• Have you considered seeding hard white wheat this fall?
• Watch for grasshoppers on field borders now, before they mature
• Insect scouting advised in sunflower

(27 July)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Rootworm Beetles Invading Weedy Soybean Fields
• Gigantic Japanese Beetle!?!?
• Soybean Disease Update
• Grain Fill Stages in Corn

(27 July)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• Asian soybean rust sentinel plot scouting report for July 20 to July 26
• Four fundamental stages of corn grain yield determination
• Management of annual weeds following wheat harvest
• Warning: Yews are extremely toxic to livestock
• Extension plans organic tour

(27 July)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Rotation-resistant corn rootworms in Iowa
• Recent soybean yellowing may be symptom of SCN
• Soybean aphids down in July

(27 July)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• CPSC 479, Insect Pest Management, for Agriculturists and Horticulturists
• An Inventory of Field Crop Insect Issues in the Midwest
• Western Bean Cutworm Larvae in Corn in Northwestern Illinois
• Bean Leaf Beetle Densities Expected to Increase: Don't Underestimate Potential Impact of Insect Injury to Soybean Pods
• Bacterial Blight
• Sudden Death Syndrome--What's Up This Year?
• Check Corn and Soybean Fields Carefully

(26 July)

Grain Fill Stages in Corn

Bob Nielsen, Purdue Univ.

Last revised 2005, but still good info.

(26 July)

Kentucky Pest News

Univ. of Kentucky.

• Green June beetle grubs disrupt late summer forage seedings
• Soybean plant death due to saturated soils

(26 July)

Missouri Integrated Pest & Crop Management Newsletter

Univ. of Missouri

• Corn Growers-Don't Let Aflatoxin Ruin Your 2006 Corn Harvest
• Field Crop Disease Update- July 24, 2006

(25 July)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• How to Assess Corn Fields for Disease
• Flooding Injury and Phytophthora Still Developing
• Will Root Lodged Corn Recover?
• Orthene 97 Labeled on Soybeans
• Tissue Sampling – A Useful Tool to Identify Nutrient Problems
• CCA College at the Farm ScienceReview
• Kernel Development Stages

(22 July)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• How high temperatures, stress affect corn pollination
• Phytophthora root and stem rot showing up in many soybean fields
• Corn blotch leafminers in southcentral Nebraska
• Conditions optimal for spider mite development in corn, soybean
• Sleuthing for heat signatures in sunflowers
• Nebraska custom farm rate changes from 2004 to 2006
• Genetically engineered crops the norm in Nebraska
• In-season application of liquid manure

(21 July)

Disease talk isn't cheap if fungicides involved

Purdue/Ohio State AgAnswers

(21 July)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Riddled Corn Whorls, Most Likely Fall Armyworm
• Scouting for Western Bean Cutworm
• Fungicides on Field Corn
• Warm Enough for You?

(20 July)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Annual Corn Rootworm "Digs" Have Begun
• Insect (and Mite) Coming Attractions?
• Numbers of Soybean Aphids Still Small, But Keep Watching
• Odd Wilt Symptoms in Soybeans
• Can Corn and Soybean Crops Handle the Heat?

(20 July)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Protect pollinating bees from pesticides
• Consider nematode feeding as cause for poor corn growth

(19 July)

Kentucky Pest News

Univ. of Kentucky.

• Damaging levels of virus complex in corn
• Early soybean aphid confirmed

(18 July)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Phytophthora Stem Rot is Prevalent in Many Areas
• Detecting and Managing Leaf Diseases of Corn
• Sprouting and Moldy Wheat
• Wheat Varieties Suitable for 15-inch Rows and for Relay Intercropping
• Time to Set Traps for Western Corn Rootworm Activity in Soybeans
• Insecticides for Use on Soybeans
• Soybean Aphid Update
• Controlling Weeds in Wheat Stubble

(17 July)

Warm Enough For You?

Bob Nielsen, Purdue Univ.

(17 July)

Corn And Soybean Markets Reflect Crop Concerns

Darrel Good, Univ. of Illinois

(15 July)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Use test strips, field samples to evaluate corn rootworm control
• Speeding up the process for testing manure
• Purple loosestrife — chemical and biological control
• Producing high quality alfalfa, despite the heat
• Planting turnips or rye to bolster corn stalks
• Corn database offers biological research details
• Meter would hasten in-field tests of wheat characteristics
• Market Journal: Ethanol -- is there a limit?

(15 July)

Missouri Integrated Pest & Crop Management Newsletter

Univ. of Missouri

• Common Waterhemp Population in Northwest Missouri Added to “Official” List of Glyphosate-Resistant Weeds
• MU Entomologists Find Potato Leafhoppers in Alfalfa
• Rice Sheath Blight Advisory
• 2006 Crop Injury Diagnostic Clinic
• Field Crop Disease Update- July 10, 2006
• Soybean Rust Update- July 10, 2006

(13 July)

Rains, Hail, Wind: Déjà vu All Over Again?

Bob Nielsen, Purdue Univ.

(13 July)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Following the Corn and Soybean Nematodes
• Japanese Beetle Treatment Guidelines
• Rootworm Beetles Aplenty in Some Corn Fields
• Soybean Aphid Numbers Remain Low
• Soybean Sudden Death Syndrome
• Silk Emergence
• Tassel Emergence & Pollen Shed
• A Fast & Accurate Pregnancy Test for Corn

(13 July)

Michigan Field Crop Team Advisory Alert

Michigan State Univ.

• More information on mites
• Asian soybean rust sentinel plot scouting report for July 6 to July 12
• Soybean rust update
• Wheat head scab and DON (vomitoxin levels)
• Pythium and Phytophthora root rots of soybean
• Maximum soybean growth stage for glyphosate applications clarified
• Foliar fertilization of corn and soybeans
• Soil Quality Field Day
• Enhancing pollination and biological control with native plants

(13 July)

Kentucky Pest News

Univ. of Kentucky.

• Damaging levels of virus complex in corn
• Controlling corn earworm in sweet corn
• Corn borers flying
• Leaf blight of orchardgrass

(13 July)

Iowa Integrated Crop Management Newsletter

Iowa State Univ.

• Western bean cutworm in 2006
• Greensnap in Iowa
• Dry weather: Worried about high nitrates in forages?
• Mite watch 2006
• Midsummer soybean disease scouting

(13 July)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Japanese Beetles--The Onslaught Continues
• Transgenic Corn Rootworm Hybrids: Dose Response Considerations with Respect to Silk Clipping
• Western Bean Cutworm Moths Are Being Found in Illinois Traps
• Soybean Aphids Not Causing Too Many Concerns in Illinois
• Comparison of Independent Online Pesticide Label Services

(11 July)

Silk Emergence

Bob Nielsen, Purdue Univ.

Last revised 2005, but still good info.

(11 July)

Tassel Emergence and Pollen Shed

Bob Nielsen, Purdue Univ.

Last revised 2005, but still good info.

(11 July)

A Fast & Accurate Pregnancy Test for Corn

Bob Nielsen, Purdue Univ.

Last revised 2005, but still good info.

(11 July)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Soybean Rust Update
• Corn Pollination Underway in Many Ohio Corn Fields
• Farm Focus Field Day July 18 to Focus on Tillage & Soil
• Japanese Beetles and Other Defoliators in Soybeans
• Potato Leafhopper
• Western Corn Rootworm Adult and Larval Injury
• Field Crops Day at Northwest Agricultural Research Branch Station

(10 July)

Hog Profits Threatened By Corn Prices

Chris Hurt, Purdue Univ.

(7 July)

Kentucky Pest News

Univ. of Kentucky.

• Soybean aphid present in Kentucky
• White margined burrowing bugs are plentiful

(7 July)

Purdue Pest & Crop Newsletter

Purdue Univ.

• Western Bean Cutworm, A New Corn Pest for Indiana
• Rootworm Larval Damage Being Reported
• Growth Regulator Injury in Corn in 2006
• Herbicide Resistance Screening Available at Michigan State University Diagnostic Services

(7 July)

Nebraska Crop Watch Newsletter

Univ. of Nebraska.

• Use corn rootworm scouting numbers to make 2007 management plans
• Cowpea aphids found feeding in Dixon County
• Grape colaspis beetles feeding on corn leaves
• Be a good neighbor: Control volunteer wheat to control to limit wheat streak mosaic
• Research update: How soybean row spacing affects velvetleaf competitiveness
• Purple loosestrife — Biology and control
• Managing seedling alfalfa in a drought
• Forage options following irrigated wheat
• Locating hay resources
• Maximizing drought-impacted alfalfa yield

(7 July)

Plant Analysis in Today’s Agriculture

George Rehm, Univ. of Minnesota

(7 July)

the Bulletin:
Pest mgmt & crop developmt information for Illinois

Univ. of Illinois

• Corn Rootworm Larval Damage "The Worst I Have Ever Seen" Reported in Some Fields
• Tassel High by the Fourth of July: Prepare for Silk Clipping by Western Corn Rootworms
• Japanese Beetles Will Not Go Away Any Time Soon
• Instances of Inconsistent Weed Control with Glyphosate

(5 July)

Ohio C.O.R.N. Newsletter

The Ohio State Univ.

• Soybean Rust in Louisiana
• Have recent environmental stresses affected corn ear formation?
• Hail Damage to Corn Will Vary Depending on Growth Stage
• Soybean Aphid Update
• Rootworm Larvae Still Active
• Foliar Fertilizers – How Much is Actually Taken Up and What is the Agronomic Value?
• Presidedress Soil Nitrate Test (PSNT) – Understanding its Limitations and Knowing Where to Use It
• Put a Notepad and Pencil in the Combine

(5 July)

Markets React to USDA Reports And Crop Concerns

Darrel Good, Univ. of Illinois