Down in bermuda keys1/30/2023 Other insects and diseases can cause areas of turf to become bare. Specifically, tunneling from mole crickets disrupts the soil surface, enabling weed seeds to readily germinate. Pest damage makes the turf more susceptible to weed infestations by creating spaces for weed establishment and reducing the turf's competitive ability. The first step to managing weeds in such a situation is to alleviate soil compaction and/or the saturated condition. Goosegrass, annual bluegrass, dollarweed, and certain sedges grow well in compacted and/or continuously wet soil. Turf growing in soil compacted by excessive traffic, especially when the soil is saturated with water, cannot develop a healthy root system as well as it can under noncompacted soil conditions. Turf damaged by foot or vehicle traffic invites weeds. It is very important to understand that weeds don't create a void they fill a void. Sharpening the mower blades can reduce turf damage and the chances for weed invasion. If turf is over- or underwatered, over- or underfertilized, or mowed too low or too infrequently, the turf is weakened and weeds move in. Proper fertilization, watering, mowing, and pest control are required to produce a dense turf that can prevent weed infestation. It is important to note that no grasses perform well in heavily shaded areas, and an alternative to turf, such as a groundcover, should be considered. Augustinegrass, zoysiagrass, and, to a lesser degree, centipedegrass. Alternate grass choices for shady conditions include certain cultivars of St. Growing bermudagrass or bahiagrass under any shade results in thin, weak turf that is very susceptible to weed invasion. For example, moderately shaded areas support only a few turfgrass species. The first management decision is selecting the best turf species or variety for the site. Several management practices promote a healthy, dense grass and help reduce the cost of weed control while maintaining the aesthetics of the lawn. A thick turf also minimizes the physical space available for weeds to become established. Healthy turf shades the soil so sunlight can't reach weed seeds ready to germinate. The first and best method of weed control begins with proper management practices that encourage a dense, thriving turf. Weeds that require three or more years to complete their life cycles are considered perennials. Most biennial plants show only vegetative growth during the first growing season, and flowering occurs during the second growing season. Weeds that complete their life cycles in two growing seasons are called biennials. Summer annual grasses, as a group, are generally the most troublesome weeds in turf. Winter annuals complete their life cycles from fall to spring. Summer annuals complete their life cycles from spring to fall. AnnualsĪnnual weeds complete their life cycles in one growing season. Weeds are also classified based on their life cycles, which is the period between seed germination and plant death. Economically important members include yellow and purple nutsedge and, to some degree, globe, Texas, annual, and water sedge, plus path and beak rush and perennial kyllinga. Both sedges and rushes favor a moist habitat. Sedges have triangular-shaped, solid stems, while rush stems are round and solid.
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