Southern Brass Buttons

Pest: Southern Brass Buttons (Cotula australis)

Pest Type: Annual Broadleaf Weed

Major Identifying Features: Low growing, branching stems, aromatic leaves, button-like flower, can be found in California in the North, Central, and South Coast up to 800 feet, narrow, long and fleshy cotyledons, first true leaves are divided into 3 narrow lobes, green flowers, palm shaped leaves, 2 types of fruits that are flat and hairy

Life Cycle: Annual, reproduces from seed

Pest Rating: Moderate

Management Rating: Easy to moderate

Host/Season/Outbreak Information: Native to Australia, grows on agricultural land and other disturbed areas

Damage Information: Unknown

Management Options: Mechanical by mowing and cutting, good control with tillage, hand pulling and digging, chemical control with herbicides such as chlorsulfuron, clopyralid, dicamba, glyphosate, hexazinon etc. (herbicides should always used with caution)




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