After years of using another popular name brand (Hi-Yield 2 4-D), we were urged to try this new, more expensive herbicide on our half acre. Quick View. can be a problem in pastures and hay fields. If the tree's diameter is less than 3 inches, coat the entire surface of the stump with an herbicide such as Imazapyr. Spraying a broad-leaf herbicide will kill the monkey grass. Small tropical spiderwort plants, 2 inches tall or less, can be sprayed with a glyphosate herbicide. No single herbicide application was found to fully control spiderwort. These plants are considered weeds, but are not on the invasive plant species list. Apply herbicide to the area that needs it. It is a non-selective type of herbicide, meaning that it will kill just about anything—including your ornamental landscape plants and your lawn grass. Patricia Hamilton Reed has written professionally since 1987. With this high dependence on Roundup Ready technology and glyphosate, tropical spiderwort has emerged as a major weed problem in many areas of Georgia. Store leftover herbicide properly and monitor the plant. Other generic brands contain metolachlor, a This weed killer is one of the best selective types of herbicide. Herbicides do not prevent weeds from germinating but they kill weeds as they grow through the herbicide treated zone by affecting the cell division in the emerging seedling. Look at the flowers and leaves and dig up a small portion of the root ball with a shovel. Grass Killer That Does Not Kill Flowers. What Is the Difference Between Schlumbergera & Zygocactus? Institute of Food and Agricultural Sciences. These will kill or severely damage any plant that they touch. Another weed killer, 2,4-D (known by trade names such as Weedtrine-II, Aqua-Kleen and Barrage) is cited as an excellent control strategy for cacti by the New Mexico State University Extension. You can burn them. The BioAdvanced 704100B Bermudagrass Control is a perfect choice for killing Bermuda grass around flower beds and ornamentals. This practice may be needed in addition to herbicides. Read and follow the instructions on the product's label because directions will vary. Benghal dayflower (also known as tropical spiderwort) is an annual/perennial weed that has become increasingly common in agronomic production systems. Roundup is an example of a non selective herbicide. The product will attack weeds like broadleaf, poison ivy, chickweed, etc. Differences from lookalikes include a purple-lavender rather than true-blue flower, hairs on the upper leaf surfaces and most particularly, the swollen-looking white flower structures on the roots. When you find it spreading throughout your landscape, however, your main concern will be getting rid of St. John’s wort plants. Systemic herbicides provide effective control of crape myrtle trees by killing their roots. 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