Mildew is one of the most common fungal diseases in the garden. It can also attack lupine. In this guide we will explain to you how the fungus develops, how you can recognize it and what you should do about it.
How do I recognize and treat powdery mildew on lupins?
Mildew on lupins is caused by locations that are too moist or planted too densely. It can be recognized by white coating (powdery mildew) or yellowish spots (downy mildew) on the leaves. Infected plant parts should be removed and treated with environmentally friendly fungicides.
What causes powdery mildew on lupine?
The followingtwo causes are essentially possible for powdery mildew on lupine:
- The location is too humid.
- The lupins are planted too closely.
Both individually and in combination, these two circumstances can promote the development of powdery mildew in lupine.
How do I recognize powdery mildew on lupine?
You can recognize powdery mildew on lupines by awhite coating on the tops of the leaves. This occurs over a large area and can be wiped off.
Downy mildew on lupines is manifested byyellowish spots on the upper sideand agray to gray-violet fungal lawn on the underside of the leaves.
What to do if the lupine is affected by powdery mildew?
If your lupine is suffering from powdery mildew, you should cut off theaffected plant partsThen treat the plant with a suitablefungicideDo not use it on chemical clubs; Instead, choose environmentally friendly products based onmesh sulfur or copper.
Important: If there is a severe infestation, it is better to remove the entire lupine so that the fungus does not spread to surrounding plants. You can simply dispose of affected plants (parts) in the compost, as the fungus dies there - it only lasts on living plant tissue.
How can I prevent powdery mildew on lupine?
The best way to prevent powdery mildew on lupine is to maintainsufficient distancewhen planting.40 to 50 centimetersIt should be. And: Only water from below and be careful not to wet theleaves with water
Tip
Cow's milk as a popular home remedy against mildew
Cow's milk can prevent mildew. Mix untreated fresh whole milk from the he alth food store (NOT homogenized/pasteurized milk) with water in a ratio of 1:8.- April to July: spray plants weekly- from August until the end of the season: spray plants every two weeksThe bacteria contained in the milk are, multiply rapidly. They form a dense coating on the leaf surface that repels fungi.
