How is Pythium blight treated?
Our top recommendation to treat Pythium Blight is Mefenoxam 2AQ. Mefenoxam 2AQ is a systemic fungicide that contains the active ingredient Mefenoxam and is designed to get rid of various harmful fungal diseases, including Pythium Blight. It is also the most affordably priced option to tackle the disease.
What causes Pythium fungus?
The pathogens that are responsible for Pythium root rot, also known as water molds, are present in practically all cultivated soils and attack plant roots under wet conditions. These fungi can be spread by fungus gnats and shore flies and end up contaminating potting mixes in containers.
How can you tell if turf is Pythium?
These symptoms can easily be mistaken for leaf spot, so be certain you obtain an accurate diagnosis. Leaves within affected areas are matted, orange or dark gray in color, and greasy in appearance. Gray, cottony mycelium may be seen in the infected areas when the leaves are wet or humidity is high.
What fungicide controls Pythium?
Signature Stressgard and Banol are effective fungicides for all Pythium diseases. Resistance has not been an issue for either fungicide after more than 20 years of commercial use, making them reliable choices for Pythium control.
How do you identify Pythium?
Using Stains in Identifying Pythium Species. Stains can be used to help identify some morphological characters. Moorman does not usually use staining; however some literature suggests it is helpful in identifying characters. Both lactophenol cotton blue and acid fuchsin are used for staining Pythium in culture.
How does Pythium spread?
The Pythium fungus overwinters in soil and plant debris. Its spread is associated with water movement. When run-off drains through symptomatic turf, the surface water can transport spores. Also, the fungus is readily spread by equipment after affected areas are mowed while wet.
How fast does Pythium spread?
Pythium blight can spread rapidly and can kill large areas of established turf in 1 to 2 days in hot, very humid summers. The initial symptom of the disease in a lawn or golf course appears small, circular spots of collapsed grasses with dark green water-soaked blades (Figure 1).
Where does Pythium blight come from?
Pythium blight is also called “cottony blight” which refers to the cotton candy-like growth of white, fluffy aerial mycelium growing from infected turfgrass foliage (Figures 13-15). The mycelium is most abundant when infected leaves are wet, e.g. in the morning after a night of rain or heavy dew.
How do you get rid of Pythium?
Slow sand filtration has been shown to be an effective, simple, and inexpensive method for removing Pythium from water.
What are signs of Pythium?
Symptoms: Wilting, stunting, uneven plant growth, crown rot, plant death. Roots are discolored, the cortex may slough off, leaving the vascular cylinder. Spread: Pythium spp. are soil borne pathogens, movement of infested soil or plant material can spread disease.
Can Pythium spread to other plants?
Spread: Pythium spp. are soil borne pathogens, movement of infested soil or plant material can spread disease. This pathogen produces several different types of spores, each with a slightly different function. Sporangia can either germinate and infect plants directly or produce many zoospores.