Azolla   Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns, the only genus in the family Azollaceae. They are extremely reduced in form and specialized, looking nothing like conventional ferns but more resembling duckweed or some mosses. They float on the surface of water by means of numerous, small, closely-overlapping scale-like leaves, with their roots hanging in the water. They form a symbiotic relationship with the cyanobacterium Anabaena azollae, which allows the plants to fix nitrogen from the air. . Read More At Azolla - Wikipedia, the free encyclopedia "http://en.wikipedia.org/wiki/Azolla"

Azolla Control The end of the road for floating water fern - a safe effective biological alternative Looking for a cheaper more effective alternative for controlling Azolla? Look no further, Azollacontrol from CABI Bioscience offers you a comprehensive natural control option for managing this most noxious of weeds. Azollacontrol makes use of the North American weevil Stenopelmus rufinasus. This weevil is a highly effective natural enemy of Azolla filiculoides. The weevil, which can only feed and reproduce on Azolla spp., has proved itself to be successful biological control agent in laboratory and field trials in South Africa as well as the UK.   Read More At Azolla control "http://194.203.77.76/AzollaControl/"

Azolla filiculoides :: Flora of Northern Ireland web site This little fern floats on the surface of ponds or lakes with its roots hanging down into the water. It is an American species introduced as a plant for garden ponds from which it has escaped into watercourses and lakes around the Province, including Lough Neagh. The plant has become very abundant in some of these lakes in the last ten years or so and its survival over winter in the wild may have been helped by a rise in average winter temperatures in Northern Ireland. Sometimes it can completely cover the surface of a pond and forms dense masses of material washed up on the Lough Neagh shores in the autumn.   Read More At Azolla filiculoides :: Flora of Northern Ireland web site "http://www.habitas.org.uk/flora/species.asp?item=2090"

Azolla Caroliniana Azolla caroliniana (Carolina Azolla, Carolina Mosquito Fern, Water velvet) is a species of Azolla native to the Americas, in eastern North America from southern Ontario southward, and from the east coast west to Wisconsin and Texas, and in the Caribbean, and in Central and South America from southeastern Mexico (Chiapas) south to northern Argentina and Uruguay.[1] Frond detail Frond detail It is a freshwater aquatic fern, with scale-like fronds 5–10 mm long, green to reddish, most often reddish in strong light and in winter. They are covered in fine hairs that give it the appearance of velvet.[2][3] It is able to fix nitrogen from the air by means of symbiotic cyanobacteria. It can survive winter water temperatures of 5 °C, with optimum summer growth between 25-30 ºC.[4] . Read More At Azolla caroliniana - Wikipedia, the free encyclopedia "http://en.wikipedia.org/wiki/Azolla_caroliniana"

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