Morningglory

Overview

Morning glory, also known as Ipomoea spp., is a pervasive weed that jeopardizes soybean cultivation. It vies with soybean plants for vital resources like nutrients, light, and space, thereby diminishing the crop's yield and quality. The weed's robust growth, swift reproduction rate, and resistance to numerous herbicides render it a formidable foe for soybean farmers.

(Image Credit: Joy Viola, Northeastern University, Bugwood.org)

morning-glory-soybeans-2

Why Is Morning Glory Problematic in Soybean Fields?

A climbing or trailing perennial vine, morning glory can reach up to 10 feet in height. Its leaves take on a heart shape, while its trumpet-shaped flowers usually appear in purple, pink, or white. The seeds, dark brown to black in color, are encased in a round or oval capsule.

The rapid growth of morning glory and the emergence of its distinctive flowers often signal its presence. The plant's vines can swiftly overrun a soybean field, entwining around the soybean plants and impeding their growth, sometimes even causing them to bend and snap. This can drastically stunt the growth of the soybean plant and reduce its yield. The leaves of morning glory can also overshadow the soybean plants, blocking sunlight and inhibiting photosynthesis.

By competing for essential resources, morning glory can induce nutrient deficiencies in soybean plants. This can result in reduced growth and development, yielding smaller, less productive plants. Moreover, the stress induced by this competition can render soybean plants more vulnerable to diseases and pests.

Geographic Distribution of Morning Glory

Morning glory, which thrives in diverse climates and soils, is commonly found across the United States, particularly in southern and midwestern states where soybean is a major crop.

Timing of Morning Glory Emergence

Morning glory usually sprouts in late spring and early summer, reaching peak flowering in late summer and early fall. However, its seeds can endure in the soil for several years, enabling it to reemerge season after season.

How to Manage Morning Glory in Soybeans

Consider cultural practices like narrow row spacing, crop rotation, tillage, and higher seeding rates to make soybeans more competitive against morning glories.

Post-emergence applications of glyphosate alone in soybeans haven't shown consistent efficacy. Therefore, consider an effective tank mix post-emergence. Single post-emergence applications of glyphosate should not be applied to weeds more than 2 inches tall.

Pre-emergence

Post-emergence

Burndown

These rates are general guidelines, and it's always important to read and follow the specific instructions provided on the product labels for accurate application rates and guidelines

Willowood Glypho 5 Tote

Disclaimer

© 2014 - 2024 Farmer's Business Network, Inc. All rights Reserved. The sprout logo, “Farmers Business Network”, “FBN”, “FBN Direct” are trademarks or registered trademarks of Farmer's Business Network, Inc. This content was written by Norm℠, reviewed and edited by Mikaela Tierney.

This content was generated with the assistance of Norm℠, FBN’s artificial intelligence (AI) Ag Advisor, based on a dataset of information containing general industry best practices and research. The AI model did not use specific external sources to generate this content. Our process involves using AI to aid human subject matter experts with the initial drafting and/or refinement of content.

The information and content provided is believed to be reliable, but its accuracy is not guaranteed. The content is provided for informational purposes only. It is not intended to be a substitute for specific agronomic, business, or professional advice, and should not be relied upon as such. Neither Farmer's Business Network Inc. nor any of its affiliates makes any representations or warranties, express or implied, as to the accuracy or completeness of the statements or any information contained in the material and any liability therefore is expressly disclaimed. If you have any questions or feedback about the content, please feel free to contact us or visit our FAQ (https://www.fbn.com/community/blog/norm-faq).

Every product that labels MORNINGGLORY as a weed, pest, or disease the product can be applied against is shown below. Click any product for label and more information.
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