Control and Identification of Invasive Species - Grow Native
Control and Identification of Invasive Species - Grow Native
Control and Identification of Invasive Species - Grow Native
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27germination <strong>and</strong> its ability to spread.Eradication <strong>of</strong> a serious sweet clover infestationis very difficult, <strong>and</strong> control must be ongoing.Treat thick patches <strong>of</strong> seedlings with Garlonherbicide as the clover is greening up inFebruary/March. The leaf surface <strong>of</strong> sweetclovers is waxy so use surfactants to preventwater from rolling <strong>of</strong>f the leaves.Individual seedlings scattered betweennative plants may be difficult to treat <strong>and</strong>so herbicide is not recommended. Instead,annual h<strong>and</strong>-pulling is recommended followinga soaking rain when the plants begin t<strong>of</strong>lower (June or July). This method graduallydiminishes the soil seed bank <strong>of</strong> this persistentbiennial weed.Burning bushEuonymus alatusBurning bush is a woody l<strong>and</strong>scaping shrubthat is commonly used in foundation <strong>and</strong> parkinglot plantings <strong>and</strong> has the ability to spreadby seed into nearby woodl<strong>and</strong>s. It is a popularnursery plant because it produces brilliantfall color <strong>and</strong> h<strong>and</strong>some winged branches inwinter. Unfortunately, the berries are loved bybirds who carry seeds into nearby natural forestswhere plants <strong>of</strong>ten sucker to form densethickets. This species became invasive in the St.Louis area only recently <strong>and</strong> it has proven difficultto control because it does not respond wellto herbicides <strong>and</strong> is difficult to pull from theground (seedlings under two feet tall can bepulled after a soaking rain. Suckering sproutsYellow sweet cloverWhite sweet clover
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