Delphinium diseases: types, signs and methods of combating the disease

Delphinium - this is a fairly common one-year herb garden culture, which is widely used in the design of flower beds and flower beds. Magnificent bright green foliage, spiky inflorescences of small flowers of the original form, many varieties and hybrids with a variety of shades of flowers - real beauty! However, like other ornamental garden crops growing outdoors, this plant has its own problems: delphinium diseases, as well as pests, can significantly impair the appearance of planting and even lead to the death of flowers. But, being armed with the necessary knowledge, it is always possible to prevent the disease or, if it is already available, to successfully fight. Let's talk about the main ailments and pests, most often affecting the delphinium.

Fungal diseases of the delphinium

The ailments caused by pathogenic fungi and bacteria are most often affected by stems and plant leaves. Usually this is due to excessive humidity in the cold weather, as well as too much dolphinium planting and lack of air circulation in the thick of the vegetation.

Powdery mildew

A clear sign of this delphinium disease is the appearance of a greyish-white coating on the leaves, their petioles, stems, and then the flowers of the plant, as a result of which the affected areas are folded, browned and dead. If you do not take measures, then first one plant will die, and then - and the whole landing. Prevent the appearance of powdery mildew can be thinning out areas planted with delphinium, removing excess shoots. If the disease has already appeared, spraying of bushes with foundation or an antifungal agent "Topaz" will help. Of folk remedies, spraying with a copper-soap solution and pollinating the grayed pre-moistened shrubs with water are quite effective.

Ramulariasis

Evidence of the appearance of this fungal disease of the delphinium is the spread of brown spots on the leaves of the plant - lighter in the center and with a dark rim around the edges. With increasing number of lesions, the leaves wither and die. Treatment is carried out by treating sick plants with any antifungal drug. The causative agent of the disease remains in the dead plant remains, so they must be collected and destroyed.

We treat delphinium: bacterial and viral diseases

Black spotting

This ailment of the delphinium is manifested in the spreading of dark spots through the plant from below, as a result of which the affected leaves, stems and flowers die and break off. If the disease is not triggered, the delphinium can still be saved by spraying them with a solution of tetracycline several times at a rate of 1 tablet per liter of water. As in the case of fungal diseases, it is necessary to destroy the dead remains of affected plants.

Ring spot

With the defeat of these diseases in the bushes of the delphinium rapidly spread concentric patches of yellow. The most effective method of treatment is the culling and destruction of infected bushes, as well as processing the rest of the planting with carbophos, aktara, spark and other similar compounds.

Pests

The most dangerous for delphinium insect pests are flies, aphids, mites and caterpillars. They settle on the leaves and flowers of plants, feed on their parts, not allowing them to develop normally. You can fight them. And even need to spray the delphinium bushes with insecticides, regularly inspecting plantings and collecting larger pests, placing traps on separate species (for example, containers with "bleach" against slugs).

Here such ailments most often amaze and delphinium is one year old, and delphinium is long-term. The photos illustrating this article clearly show how strikingly the appearance of healthy and diseased plants differs. And what will be more on your home garden depends on you!