Growing Success 20300573 Natural Power Disease & Fungus 800ml RTU, GREEN

Product Information

Asexual spores (conidia) of the g rey mouldfungus are always present in the air. They require leaf wetness or very high humidity to germinate and infect. Damaged or senescent plant parts are a very common way in which the fungus gains entry to the plant. The disease has a huge host range, and is active over a wide temperature range. Under certain environmental conditions some Stemphylium speciesare thought to be able to produce a sexual stage, and spores liberated from the fruiting bodies of the fungus in this scenario could account for the overwintering survival of the fungus and its long distance dissemination.

Don’t plant too densely, giving space between plants. Aim for an open environment to increase air circulation and reduce humidityThe fungicide tebuconazole with trifloxystrobin (Provanto Fungus Fighter Plus, Toprose Fungus Control & Protect) has a recommendation for the control of leaf spots on ornamental plants. 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 Veronica(at the owner’s risk) to try and control the leaf spotting. Avoid overhead watering as this increases humidity around the foliage, which makes the plants more prone to powdery and downy mildews Prune shrubs to give an open structure (which will again improve air circulation and reduce humidity) Because most of the growth of powdery mildews is found on the plant surface they are easily targeted with fungicides. Little can be done by cultural means to prevent infections when conditions are suitable. Plants may sometimes'grow through' the problem, with new leaves being unaffected when growing conditions change so that they are less conducive for the diseases

Chooseless susceptible cultivars if downy mildew becomes a persistent problem. It is mainly a problem withbroad-leaved cultivarssuch as Veronica‘Midsummer Beauty’ and x ‘Franciscana Variegata’ but also occasionally present in some of the smaller-leavedspecies and cultivars,e.g . V. albicans, V. ‘Frozen Flame’ , V. rakiensis, V . ‘Youngii’ (syn. ‘Carl Teschner’) . The RHS believes that avoiding pests, diseases and weeds by good practice in cultivation methods, cultivar selection, garden hygiene and encouraging or introducing natural enemies, should be the first line of control. If chemical controls are used, they should be used only in a minimal and highly targeted manner. Non-chemical control: There are no products available to amateur gardeners for the control of either downy mildew or grey mould. If you'd like more than 10 bags of compost please call our Customer Service team who can arrange for a bespoke competitive quote on 01480 774555 (standard network charges apply) Like that of most powdery mildews, the majority of the growth of rose powdery mildew is on the surface of the plant. This exposed growth makes it susceptible to a range of chemical control measures.As with other powdery mildews, these species grow initially over the leaf surface, feeding from the tissues but not killing them, and producingairborne spores which spread infection.Later the tissues die and, unusually for powdery mildew infection, drop out leaving holes and tattered edges to the leaves. An overwintering stage is of minor importance, most survival through the winter is as mycelium on the evergreen leaves. Similar non-chemical control measures can help to prevent infection by leaf spot fungi, downy mildew and grey mould,which are all 'wet weather' diseases (see the 'biology' section, below):

The leaf spot pathogens Stigmina and Eupropolella cause brown spots on the leaves. The centres of the spots may eventually fall out, leaving irregular holes in the leaves that resemble damage from shotgun pellets – hence 'shot-hole'. Spots caused by Eupropolella are larger than those of Stigminaand sometimes havefungal fruiting bodies visible, and can lead to large parts of the leaf being shed Use all year round, indoors and out. When applied on edibles there is no harvest interval – just wash before eating. Growing Success Disease & Funghus should be used preventatively or at first sign of infestation. We know how important your garden is to you. We've listened to our customers and introduced a new improved speedy delivery service, meaning Express deliverycomes as standard. Distorted leaves are often the first sign of infection, especially with the larger-leaved cultivars. A grey/mauve felt-like 'fungal' growth appears on the under-surface of the leaves, with diffuse purple-red or yellow patches developing on the corresponding upper surface. Fungicides for gardeners (Adobe Acrobat pdf document outlining fungicides available to gardeners) LinksDowny mildewrequires cool wet weather for infection and spread. The 'fungal' growth seen on the underside of the leaves produces large numbers of asexual spores.Downy mildews are host-specific, so for example thedowny mildew affecting a Veronica will not infect a rose or vice versa. Do not over-fertilise (especially not too much nitrogen) as succulent growth is particularly susceptible

The fungicides sulphur (Fungus Clear Ultra 2, Mildew Clear for Edibles), tebuconazole (Provanto Fungus Fighter Concentrate), tebuconazole with trifloxystrobin (Provanto Fungus Fighter Plus, Toprose Fungus Control & Protect), and triticonazole (Fungus Clear Ultra) are approved for the control of powdery mildewson ornamental plants.Tebuconazole with trifloxystrobin also carries a recommendation for control of 'leaf spots' of ornamentals, and may have some activity against the fungal leaf spot diseases of laurels. Further information on the management of downy mildews, powdery mildews and grey mould can be found in the advice profiles on the links below: The fungicides sulphur (Fungus Clear Ultra 2, Mildew Clear for Edibles), tebuconazole (Provanto Fungus Fighter Concentrate), tebuconazole with trifloxystrobin (Provanto Fungus Fighter Plus, Toprose Fungus Control & Protect), and triticonazole (Fungus Clear Ultra) are labelled for the control ofrose powdery mildew.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)).