Chemical
The disease is always easier to prevent than cure, so the number one drug in the medicine cabinet for flowers can become a means of disinfecting the soil, like bleach. It is her chemical disinfection of the soil with the slightest suspicion of the possibility of getting into it pathogens.
Chlorine lime. Chlorine lime is used to disinfect the soil in the garden areas, sealing it with rakes in the soil at a rate of about 150 g per 1 m2.It is possible to carry out this measure only on soils requiring liming in the autumn period, since plants can weaken at the moment of active vegetation.
Carbathion( VAPAM) is used for spring disinfection of open ground before planting. It effectively destroys fungi. Dosage: 250-300 ml of the preparation / 5 l of water per 1 m2.
If neither thermal( it was discussed both as a means of combating pests and as a means for destroying pathogens of other diseases), nor chemical preventive disinfecting treatments of the soil did not help, other means would have to be used. But first you have to cut off and destroy the already affected parts( it is better to sacrifice small than to lose the entire plant), and then begin to treat.
The most traditional of the drugs used in plant growing is the Bordeaux liquid. It is obtained from copper vitriol and lime milk( 100 g of copper sulfate is dissolved and added to 100 g also dissolved and filtered quicklime, after which the volume of the solution is brought to 10 liters of water).More often it gets ready. Bordeaux fluid is used to fight most fungal diseases. Usually, the plant is sprayed with 1% solution, and on the open ground, in autumn, you can treat flowers and 5% solution( against powdery mildew).In addition to powdery mildew, Bordeaux fluid is used to fight virtually all fungal diseases: rust, brown rot, spot, fusariosis, etc.
Nitrafen is used primarily against pathogens of viral and bacterial diseases, it uses 2 - 3% solution, but itcan be effective against fungi: powdery mildew, etc., in this case 1% solution is used.
Iron vitriol( crystalline salt or powder) is used against pathogens of viral and bacterial diseases( 3-10% solution) and against fungi: powdery mildew, etc. - 4-5% solution.
Phthalane( 50% powder) is used as an analogue of the Bordeaux liquid. Concentrations - 30-40 g / l.
DNOC( dinitroorthocresil) - 1 - 2% solution is applied against powdery mildew.
Granosan( powder) is used for pickling bulbs and corms. They are powdered after they are kept in a solution of horn or kiltan or kept in a 0.25% solution.
Rogor is used for pickling bulbs and corms in the form of 0.1-0.2% solution.
Keltan is used to protect against parasitic fungi and some pests. A 0.1-0.2% solution is used for irrigation.
TMTD( tetramethyl-tiuram-disulphide) is used against gray rot as a 0.6% slurry used for rooting, only in industrial greenhouse or field cultivation of flowers. Application in garden areas( and even more so in the rooms) is not allowed. Sometimes used for pickling bulbs( in dry form - for pollination).
Figon - apply 0.2% solution against fungal diseases, primarily against powdery mildew.
Lecithin( spray) is a remedy for powdery mildew.
Calcined soda is used against powdery mildew at a concentration of 0.5%.Can be used in conjunction with a soap solution.
Copper and soap liquid is prepared by dissolving in the base of a solution of soap( see) copper sulphate( it is also pre-dissolved separately in enameled dishes) at a concentration of 0.25% by dry weight. In the mixture can be added and a little detergent type "Lotus".
Colloidal sulfur( powder).1.0 - 1.5% suspension of ground sulfur is applied against powdery mildew.
Copper sulphite( 90% wettable powder) for the intended purpose is an analogue of the Bordeaux liquid. Dosage: 30-50 g per 10 liters of water. Srednekoyadovit.
Oxihom is an analog of copper chloride. Used for processing plants 0.2% solution( 20 g / 10 liters).
Kuprozan is used against black patch in the form of 0.3-0.4% solution.
Fundazol is a systemic fungicide( that is, a remedy specifically designed to kill fungi).It is also used for treatment( 0,15 - 0,2%), and for plant protection( 0,05 - 0,1% solution).
Benlat and Zuparene are used against gray rot: plants are sprayed with 0.15-0.2% solution at a frequency of 3 to 5 days before the plaque disappears.
Substitutes of natural toxic chemicals
Ash infusion - most often used against powdery mildew. Ash( 200 g / 10 L) is soaked for 5 days and filtered.
Infusion Mullein - 1 kg Mullein is stirred in 10 liters of water and aged for at least 24 hours. It is used against powdery mildew.
Infusion of marigolds erect - 500 g of dried green mass pour 10 liters of warm water and insist for about 12 hours. It is used against many fungal diseases.