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Martinsville, Ohio | Here is what I am digesting to come up with my program Dave et.al:
http://www.beckshybrids.com/agronomy/documents/HerbicideProgNonGMSB...
Weed-free start at planting through use of tillage or preplant burndown herbicides
• Apply residual (PRE) herbicides in spring before soybeans emerge, to reduce weed populations, slow weed growth, and create flexibility in the postemergence application window
• Apply the first postemergence (POST) treatment when weeds are small - less than 4 to 6 inches
• Where needed to control late-emerging weeds, a second POST treatment should be applied about 3 weeks after the first POST treatment
Spring preplant burndown programs
• Burndown should include either:
a. glyphosate (0.75 lb or higher) + 2,4-D ester (0.5 lb or higher), or
b. Ignite (29 to 36 oz) + 2,4-D ester (0.5 lb or higher) + metribuzin (0.38 lb ai), or
c. paraquat + 2,4-D ester (0.5 lb or higher) + metribuzin 75DF (6 oz or higher).
• Use of 2,4-D ester and soybean planting
a. 0.5 lb – 7 days before planting (any ester product)
b. 1.0 lb – 15 days before planting for Salvo, E99, Weedone 650 (30 days for other ester products)
• Apply when marestail are less than 4 inches tall – the smaller the better
• For most effective dandelion control, apply a mixture of glyphosate + 2,4-D ester + a residual product that contains chlorimuron or cloransulam.
Use a broad-spectrum residual (PRE) herbicide
Use a broad-spectrum residual (PRE) herbicide
• residual should accomplish the following: 1) control lambsquarters and marestail, including ALS-resistant populations; 2) have activity on giant and common ragweed, including ALS-resistant populations where possible.
• Herbicide effectiveness ratings of 8 to 9 indicate “control”, and ratings of 6 or 7 indicate “has activity on”. More extensive ratings can be found in the “Weed Control Guide for Ohio and Indiana”.
Ratings chart is on the PDF if you want to download it.
Ed | |
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Foundation Herbicides - Soybeans
