Mushroom disease tulips

Gray mold - Botrytis tulipae (lib) Lind. The disease manifests itself most strongly in the years to the rainy, cool weather, which favors the rapid development of fungus. Particularly affected in such cases land on heavy soils. Affects all the overground plant parts (buds, flowers, stem, leaves), as well as onions, the latter - in the period of vegetation, as well as during storage. On the dead aboveground organs are formed slightly depressed yellowish-gray spots of various sizes and forms with dark water-edges. In a humid environment is rapidly increasing the size of spots, and they are covered with gray bloom of dispute fungus, and body tissue softens. Later she podsyhaet becomes bumagoobraznoy and ash-gray, as the fire burned. The characteristic manifestation of illness is also affected by the curvature of the plants, which often oblamyvayutsya. The buds are not developed. Those of them who opened, are deformed, ugly flowers, die prematurely. At the peduncle, particularly in the lower part, often formed sclerotia, and the stem dies. Do these plants is reduced during the growing season and the entire aboveground parts, so the bulbs they grow shallow.business safes |

Patients brown rot bulbs are on the outer fleshy scales slightly depressed yellowish or brown spots with reddish-brown raised edges. Fabrics temneyut bulb, and softens it shrink.

Sometimes radial cracking stems from the center to the edges. On the surface of patients bulbs formed black sclerotia fungus, which served as a source of infection. In severely affected bulbs during storage sgnivayut, and when the weak - the disease can not be observed, and the bulbs are in the landing. In spring they give weak, curved, sharply different from the normal shoots, which soon bureyut, are covered with gray bloom sporonosheniya fungus and will soon die. These plants are a source of infection in spring, as well as disputes spread by air currents and contaminate healthy tulips. Therefore, careful viewing of shoots at the beginning of the growing season and the destruction of all suspect plants.

Gray mold affects almost every class, but not all of them susceptible to disease in the same way. Less sick early varieties that are able to finish flowering to maximize the development of disease. Of late popugaynye relatively resistant tulips.

Infected tulips gray rot at all stages of development, but they are particularly susceptible to phase butonizatsii. The incubation period under favorable conditions, no more than 1-3 days. Disease contributes to high humidity, poor light, spring frost, excessive nitrogen nutrition, gelled landing.

To prevent contamination of brown rot of the bulbs in front of the bookmark at the recommended storage opudrit mixture of TMTD, sulfur and ether-sulfonate in a ratio of 2:1:1 at a rate of 8-10 g per 1 kg of seed.

Applied TMTD and a solution of 0,3-0,5%-term concentrations for etched prior to planting bulbs for 30 minutes. Such treatment will favorably affect the growth and development of plants, a positive impact on productivity and flowering tulips. It should be remembered that Treating with mordants prevents bulbs from the soil of infection within a short period of time. Therefore, the period of vegetation carried out a number of treatment plants to protect them from secondary infection, the number of which depends on several factors: contaminated soil, the state of crops, weather conditions, etc. For spray applied 2% loss suspensoid TMTD, 1.5% loss suspensoid colloidal sulfur, etc. Particular attention euporen at a concentration of 0,5-1,0%, which is considered the most effective tool in combating the gray rot.