... Use properly timed preemergence herbicides for control. Alaska Exotic Plant Information Mayweed chamomile (Anthemis cotula L.) is a cool‐season annual weed that germinates during March and matures by mid‐May in the southeastern United States.The economic importance of this weed in the pasture ecosystem has not been determined. This species is resistant to a number of herbicides. Introduction Mayweed chamomile, also known as dog fennel, mayweed, stinkweed, or stinking chamomile… Mayweed chamomile, often called dog fennel, is an annual bushy broadleaf plant that germinates in early spring. Although the flowers are very nice to look at, this weed should never be encouraged to grow on your property. It will grow in any site with exposed soil, preferably in full sun. References: AKEPIC database. It will germinate and grow year-round (albeit very slowly over the winter). An integrated management approach is required for the sustainable, long-term control of this species. Two insects have been identified as potential bio-control agents for scentless chamomile. “Even in what’s been a really wet year for us, Milestone delivered 90% control on the mayweed chamomile,” Brierley says. The seeds viability in soil range from 4 to 6 years. Distribution of mayweed chamomile in Alaska . “Lots of rainfall can make it especially tough to get good results because the treatment surface is a mix of crushed oyster shells and sand, … Combinations of rotational grazing and herbicide treatments are the best methods for successful control of mayweed chamomile in crops and pastures (Ivens 1979). The leaves are finely dissected, alternate, and approximately 0.75 to 2.5 inches long and 1 inch wide. Mayweed chamomile is a prolific seed producer, producing more than 960,000 seeds per plant. Apion hookeri or seed head weevil, was first released in Alberta in 1992. Management. It finds isolated plants, synchronizes egg development with the appearance of the first flower buds and causes significant reductions in seed weight. The seeds are 10 ribbed with small glandular bumps. Matricaria chamomilla (synonym: Matricaria recutita), commonly known as chamomile (also spelled camomile), German chamomile, Hungarian chamomile (kamilla), wild chamomile, blue chamomile, scented mayweed, is an annual plant of the composite family Asteraceae.Commonly, the name M. recutita is applied to the most popular source of the herbal product chamomile, although other … for mayweed chamomile control, herbicide-resistant biotypes are an increasing concern. If allowed to thrive, it can be hard to get rid of. Matricaria chamomilla (synonym: Matricaria recutita), commonly known as chamomile (also spelled camomile), German chamomile, Hungarian chamomile (kamilla), wild chamomile, blue chamomile, scented mayweed, is an annual plant of the composite family Asteraceae.Commonly, the name M. recutita is applied to the most popular source of the herbal product chamomile, although other … Alternate, finely and deeply divided, up to 2.5 inches long and sometimes hairy. Mayweed chamomile is a bushy annual that can adapt to various conditions and is native to Europe. Stem. Controlling Mayweed Mayweed chamomile (MC) is an annual common throughout many parts of the U.S. Daisy-like; 0.5 … Control Methods Management: Combinations of rotation grazing and herbicides treatments are the best methods of successful control of mayweed chamomile in pastures. MC is in the family Asteraceae (used to be called Compositae). It is most important to prevent the production and spread of mayweed chamomile seed. 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