Soybean OBSERVATIONS
Tools of the Trade
Heavy pressure of Frogeye leaf spot and stinkbugs were observed in the field. On July 2, Frogeye lesions were found in the soybeans at a pressure of about 6 lesions per 25 ft. of row. Treated areas appeared to have lighter pressure while untreated beans continued to show more Frogeye lesions. Record rainfall in July and August allowed for heavy infestation of tissue diseases.
Row Crop Tires The tractor for this study was retrofitted with the 12.5 inch wheels and tires to reduce the amount of damage to 15 inch soybeans during spray applications. No visual damage occurred to the crop during application.
SUMMARY •
There was no significant difference in moisture levels across all treatments.
•
Statistically between the treatments, there was no difference between the fungicide only and the fungicide plus pesticide. However, both were significantly better than no treatment.
•
Economically, value was identified in both a fungicide and fungicide plus pesticide treatment.
The first visible sign of Frogeye on a soybean leaf. Before damage is visible, the infection may have spread through the PROJECT CONTACT For inquiries about this project, contact Sam Custer, leaf. Extension Educator, Agriculture and Natural Resources, Ohio State University Extension - Darke County (custer. 2@osu.edu).
Moisture (%)
Yield (bu/ac)
Untreated
14.5
60 b
Fungicide
14.4
65 a
Fungicide and Pesticide
14.4
66 a
Treatments
Treatment Means with the same letter are not significantly different according to Fisher’s Protected Least Significant Differences (LSD) test at alpha = 0.1.
LSD: 3.70 CV: 3.32%
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