Additionally, the fungicides tebuconazole (Provanto Fungus Fighter Concentrate) and triticonazole (Fungus Clear Ultra) are labelled for the control of other diseases on ornamental plants, and could therefore be used legally on Cornus(at the owner’s risk) to try and control anthracnose. The disease is widespread in the Mediterranean and is found in most countries where olives are grown. The rust fungi are described as biotrophs; that is, they grow within the living tissues of the plant and extract nutrients fromthe cells over an extended period.

With the back label of the bottle facing you so the chamber is on top left hand side gently tip the bottle to the left allowing liquid into the dosing chamber.The following products contain a combination of both insecticide and fungicide, enabling the control of both damaging invertebrates and disease: triticonazole containing acetamiprid (Roseclear Ultra, Roseclear Ultra Gun), sulphur and fatty acids (Roseclear 3-in-1). Powdery mildew is a fungal disease of the foliage, stems and occasionally flowers and fruit where a superficial fungal growth covers the surface of the plant. Repeat steps 1 – 4 above to add washings to sprayer at time of filling and dispose of empty container safely. It was first detected in the UK in the late 1990s and was probably introduced accidentally on infected plant material.

Like most of you, I’m constantly battling with fungus on my plants, so this felt like the perfect time to put the hottest fungicide product to the test.Septoria exotica causes spots that are more variable in size, generally being larger, with a tendency to merge or coalesce. Theproducts above also have recommendations for control of powdery mildew, as do products containing sulphur(Fungus Clear Ultra 2, Mildew Clear for Edibles, Roseclear 3-in-1 action (with fatty acids)).