Hairy galinsoga always produces seeds and can easily spread in lawns. It has hairy stems and yellow inner flowers with white outer flowers. Pre-emergents with isoxaben are known to help control this weed.
Henbit is a hard-to-control weed and is quick to take over lawns once it's established. Pre-emergents in early spring and postemergent herbicides during the winter will help to keep it under control.
One horseweed plan can produce over 200,000 seeds. If it's left untreated, this weed can spread rapidly. A pre-emergent herbicide is an effective solution for preventing this weed from establishing.
Japanese stiltgrass, also called Mary's grass, is a summer annual weed that looks similar to bamboo. It's very aggressive and spreads quickly. Using pre- and postemergent herbicides is recommended.
Kikuyugrass is an aggressive perennial grass that prefers warm climates. It has fleshy stems and leaves and grows from spring to fall. Multiple applications of triclopyr can help to get rid of this weed from the lawn.
Kyllinga is often mistaken for grass or nutsedge but grows much taller. It has spiky ends with shiny leaves and thrives in moist soil. It grows in mats but is controllable with herbicides containing halosulfuron.
Knotweed is a summer annual that produces white to pink flowers between the leaves and stems. It maintains a low profile and spreads out as it grows, often resembling grass in the early stages.
Lespedeza is also called Japanese clover and thrives in compact soil. It grows mostly in the summer and produces small, purple flowers along the leaf axis. Use a pre-emergent herbicide in the spring to combat weed growth.
Orchardgrass is a grassy perennial that grows best in spring and fall and thrives in shady areas. It forms strawlike culms and can grow as tall as 10 feet if it's left untreated in lawns, landscapes and growing fields.
Smartweed is also known as pink weed because of its pink flowers. It's a summer annual and can grow as tall as 4 feet. A postemergent herbicide with triclopyr is effective at eliminating this weed from lawns.
Pineappleweed is also called wild chamomile and can be used in teas. However, it's a quickly spreading weed and can be eliminated with low mowing, hand pulling and a pre-emergent herbicide.
Prickly lettuce is a common weed and can be found everywhere from lawns to plant nurseries. It produces yellow flowers during the summer. It's a weed that you should fight with pre-emergent herbicides.
