Killing Liverwort On Greenhouse Floors

One species of marchantia is a common greenhouse weed but others such as the one pictured occur naturally in moist environments in the pacific northwest.

Killing liverwort on greenhouse floors. Thereby resulting in regeneration. Jeyes fluid not only removes cobwebs algae and other unwanted visitors but also kills germs creating an environment that your plants can thrive in. Sprays that contain the active ingredient potassium soap of fatty acids and are mixed automatically when attached to a water hose are effective at killing lichens. Acetic acid 5 provided excellent liverwort control and can be used as long as you use products containing vinegar that are legally labeled for weed control.

Moss that grows on glazing bars and on the surface of compost is usually cushion like. Significant work has been conducted on liverwort. Greenhouse concrete floors fabrics inspect plants liners coming into greenhouse. A green film or powdery deposit is typical of algae on greenhouse glazing.

R abbit guinea pig etc. Many products designed to control algae and moss are also effective at killing lichens. When this environment is coupled with excess nutrients. Marchantia a thalloid liverwort with umbrella like female structures lower left and gemmae cups center which produce asexual reproductive bodies.

The flat growth of liverwort and moss results in a thick mat covering potting medium surfaces walkways and floors under benches. Liverworts usually have a green flattened plate like body and no leaves. Including green shield physan 20 and triathlon that can be used on floors walls benches tools pots and flats as disinfectants. Excellent liverwort control but injured autumn fern hosta russian sage liriope.

My experience is that roundup provides poor liverwort control which of course can only be used on nursery floors and not in containers. Both pests thrive in the low uv light high humidity and high fertility conditions associated with most greenhouses and nurseries. 12 weeks after killing the cover crop. A common example is marchantia which is often topped with umbrella like sexual organs.

Algae build up and years under the hot sun can make your normally transparent greenhouse opaque and filthy. Higher concentrations of this acid 10 to 20 percent found in retail products may retard the growth of some annual weeds and will indeed kill the foliage of perennial weeds such as canada thistle but without killing the roots. Hutches can very quickly get dirty.