Downy mildew is a fungal disease that affects many plants and appears as yellow to white patches on the upper surfaces of older leaves. On the undersides, these areas are covered with white to grayish, cotton-like fungi. These “downy” masses are most often noticed after rain or heavy dew and disappear soon after sunny weather resumes.
Downy mildew occurs mostly in cool, moist weather, usually in early spring or late autumn. This disease overwinters on plant debris and in the soil.
What are the symptoms of Downy Mildew?
Symptoms of downy mildew include:
Early symptoms are slightly stunted growth and slightly thickened or broadened leaf blades without any discolouration.
A white downy growth may occur on leaf surfaces during cool, wet periods.
When the disease is severe, small yellow circular patches 1 to 10cm in diameter appear on the turf.
Patches contain a dense cluster of excessively tillered yellow shoots with shortened roots, which are easily pulled from the turf.
Infected new seedling turf form individual clusters of dense shoots that are yellow in colour.
As the disease progresses leaves may eventually turn crisp and brown and fall off even though the plant has ample water.
Captan 800 WG controls a broad spectrum of diseases in turf, ornamentals as well as a range of crops including apples, almonds, grapes, pears, pistachios, stonefruit and strawberries.
Azoxy 250 T&O Fungicide (active constituent Azoxystrobin) is an effective xylem systemic fungicide that delivers excellent protection for up to 28 days against a wide spectrum of Turf, Nursery Stock and Ornamental diseases.
Edict Duo is a broad spectrum fungicide containing the active ingredients Trifloxystrobin (100g/L) and Tebuconazole (200g/L). It is registered for the control of Anthracnose, Brown Patch, Winter Fusarium, Helminthosporium diseases (including White Helmo), Leptosphaerulina, Curvularia, Dollar Spot and ERI (Ectotrophic Root Infecting Fungi) diseases.
Edict Disease Control is fungicide for use on Lawns, Azaleas, Roses, other general ornamental gardenplants. Edict Disease Control provides systemic andcontact disease control, both on a preventative andcurative basis. Edict controls Anthracnose, Brown Patch, Winter Fusarium, Leptosphaerulina (Leaf Blight), Curvularia (Fading Out) and Dollar Spot in lawn situations. Edict also controls azalea petal blight, myrtle rust, Botrytis Blight, Leaf Spots as well as mildew.
