Blackspot a rose. How to fight. resistant varieties

Roses without black spot you will enjoy, if you pick it resistant varieties. If the disease has arisen, than spray the plants?

When the disease occurs

The disease usually manifests itself when frequent changes in weather and temperature changes. But by August, often increases the amount of fog in the morning, which also affects the development of the infection.

As late blight spores begin to multiply in the condensate, and penetrate the tissue leaflets. First, there are small black dots, yellow leaves, and then fall down. Every year, you need to spray the plant, even if the infection is not observed. This medication soon, oksihom, Hom, Topaz.

In the market it is better not to buy a rose, although the price is attractive, because most often they sell flowers from the south, and it is better to buy in nearby nurseries where plants are accustomed to local conditions. Grade, purchased in the market, often susceptible to disease.

Rose varieties resistant to black spot

We list the most resistant cultivars to infection. This sort of "Angela", may be affected only the lower leaves, if not carried out the processing, as well as quite impervious to the sort of illness. Next grade "Sean Komblenziren", which forms many buds. Incredibly resistant to all kinds of spot, even if there will be growing the infected plant is not in any way affect the roses in this class. It is worth noting, and other varieties of "Leonardo da Vinci", "Prosperity" and "Little Red Riding Hood." You do not get sick, and can not conduct spraying. La Villa cotta flowers beautiful powerful hats inflorescences orange, and no infection does not threaten him. Grade Belvedere perfectly survives, resistant to disease.

The above-mentioned varieties differ highly resistant to black spot, holoustoychivy, but there are varieties that are considered moderately resistant to bloom. This sort of Gloria Dei, Gartneyfroyde (shoots just creep along the ground, and the infection is poorly subject), Polka, enormous Meydilend Grand Amore, etc.

As you can see, in the middle zone can grow roses resistant to speckled.

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