The weather around much of the nation has been favorable for growth of the many species of morningglory weeds. And morningglories are spread extensively in throughout most of the nation.

What is important in trying to control morningglories is attacking them when they are small—but with the appropriate herbicide. Not all monringglories are controlled equally by certain herbicides.

Identification of the specific species of morningglories is necessary for the wished for control.

The University of Georgia Cooperative Extension Service issued a list of well-known herbicides that will control different species of morningglories. The examples of herbicides and their weaknesses are as follows: 

  • Gramoxone (paraquat) is generally good on most morningglory species but not smallflower. 
  • Basagran (bentazon) is generally not effective on most morningglory species but will control smallflower.
  • Staple (pyrithiobac) is generally considered to be an excellent morningglory herbicide but not on tall.
  • 2,4-DB is less effective on pitted morninglory than other species.
  • Aim (carfentrazone) is considered a good morningglory herbicide but not on smallflower.