Seminole Crop E News

Agricultural News for Farmers and Agribusiness in SW Georgia

Morninglory ID

Posted by romeethredge on June 30, 2015

Morninglories can be hard to control and hard to identify. Identification is important so that you can use the right chemical to control them.  Probably the most important thing is to be able to tell Smallflower morninglory from the other types.

Dr. Eric Prostko, UGA Extension Scientist, recently provided some insight into morninglories.

Here is an old chart that can be useful in identifying morninglories.

MG

Figure 1.  Identifying Morningglory Species.  Source: Dr. Dick Oliver, University of Arkansas,  Weeds Today

  Some very good close-up pictures of seedling morningglory plants.  Pictures are from LSU and Virgina Tech.

Smallflower Morninglory in Bloom_DSC9058

Why is this important?  Not all morningglories are controlled equally by certain herbicides. Here are a few examples:

a) Gramoxone (paraquat) is generally good on most morningglory species but not smallflower.

b) Basagran (bentazon) is generally not effective on most morningglory species but will control smallflower.

c) Staple (pyrithiobac) is generally considered to be an excellent morningglory herbicide but not on tall. d) 2,4-DB is less effective on pitted morninglory than other species.

e) Aim (carfentrazone) is considered a good morningglory herbicide but not on smallflower.

Also, in cotton, Envoke is good on most morninglories but not Smallflower.

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One Response to “Morninglory ID”

  1. E Lanier Jordan said

    From: Lanier Jordan
    UGA Baker County Extension
    To: Rome Ethridge
    UGA Seminole County Extension
    Purpose: AG Newsletter
    Date: July 1, 2015

    Rome
    Great Newsletter.
    I use a lot of your newsletter items in my newsletter.

    Lanier

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