Dollarweed (Hydrocotyle spp) is a perennial weed found predominantly in warm temperate or tropical areas. Temperatures above 20°C and soil pH of 5.0-7.0 will favor dollarweed establishing. The leaves are gently lobed and the leaf has a lush think fleshy look to it. Dollarweed spreads through the production of rhizomes as well as seeds and tubers.

Dollarweed is considered a difficult weed to control. Cultural practices to reduce pressure may be more useful than chemical options. The weed can be found in areas that are overly wet and may be an indicator of a water leak or excessive overlap of irrigation sprinklers. Improving drainage, improving soil quality, and fixing potential leaks and irrigation issues will reduce weed pressure. Improving turf health will aid in the competition with dollarweed. Thin poor quality turf stands are more prone to infestation than healthy growing ones.


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The Ohio State University Plant Science Online Certificates

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