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grey leaf spot

Foliar Disease Scouting in Corn

July 16, 2021kgyoung

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu   The Usual Suspects Grey Leaf Spot Consistently our most common disease of corn, GLS has been becoming more noticeable over the past week with the end of week/weekend rain and humid weather.… Continue Reading →

Vegetable Crops 29:17, Curvularia leaf spot, diplodia leaf streak, field corn, field corn diseases, grey leaf spot, northern corn leaf blight, tar spot

Corn Disease Updates

June 25, 2021kgyoung

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu As tasseling in corn approaches, it is a good time to scout fields to decide if a fungicide will be applied. When considering the economics of a fungicide application, it is important to… Continue Reading →

Agronomic Crops 29:14, field corn, field corn diseases, grey leaf spot

2020 Corn Foliar Fungicide Efficacy Trials

October 16, 2020Emmalea Garver Ernest

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu Two foliar fungicide trials were conducted to evaluate fungicide efficacy in corn. Products were applied at V8 or R1 and plots were rated for foliar diseases and taken to yield. Click on the… Continue Reading →

Agronomic Crops Curvularia leaf spot, field corn, field corn diseases, grey leaf spot, OCT2020

Corn Diseases Update

July 2, 2020Emmalea Garver Ernest

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu As tasseling in corn approaches, now is a good time to scout fields to decide if a fungicide will be applied. When considering the economics of a fungicide application, it is important to… Continue Reading →

Agronomic Crops 28:16, field corn, field corn diseases, grey leaf spot

Corn and Soybean Disease Update

August 2, 2019Gail Hermenau

Alyssa Koehler, Extension Field Crops Pathologist; akoehler@udel.edu Corn Grey Leaf Spot (GLS) has continued to be the most common foliar disease present in fields at this time. Lesions from GLS typically begin in the lower canopy and progress up the… Continue Reading →

Agronomic Crops 27:19, agronomic crop diseases, grey leaf spot, soybean anthracnose

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