Content of the article:
video To grow a beautiful and beautiful plant To grow a beautiful and beautiful plant
The main enemies of aster
You can learn about the damage of a plant by the appearance of the stem, leaves, and sometimes by the flowers themselves. What can indicate about the disease:
- plant growth retardation;
- a large number of warped colors;
- narrow leaves;
- leaves wrinkled or smooth;
- color change of the stem and leaves;
- appearance of veins on the leaf plates.
Such changes can be caused by various diseases. It should be noted that asters can hit at least 24 different types of viruses. Although preventive measures( treatment of asters from diseases) may contribute to reducing the likelihood of infection, it will most likely fail to completely protect the planting from viral diseases. Such diseases can be caused by various factors. One of these is the transfer of viruses by insect vectors. That is why in the garden where it is planned to grow asters, pest and insect control should be carried out.
If the plant is affected by pests, it is most likely not possible to save it. The most effective method of pest control is prevention. The plant affected by the pest dies very quickly, because the pests either suck the sap from the flower, or gnaw the roots, or eat the leaves. In such circumstances, the flower can not exist. If only a few flowers affected by pests appear in the planting, measures should be taken urgently to protect the rest of the flowers. Although it is no longer possible to save damaged asters, it is quite possible to protect the landing as a whole from pests and diseases.
plectrantus. Plant pests
The planting of asters can affect several types of pests. To determine who exactly causes damage, you can either find a representative of pests, or inspect the affected flowers and determine the damage. Who and how affects asters:
- Earwig( gnaws buds, leaves and buds, the stumps have a serrated track).
- Drooling pennitsa( lives in foamy secretions in the axils of shoots and leaves. Deforms the stems and leaves, contributes to the formation of yellow spots on them).
- Passed mucus( devours leaves and buds, leaving oblong holes and mucous secretions behind it).
- Sunflower moth( the caterpillar of this butterfly feeds on pollen and flower petals. The seeds in the baskets can be damaged).
- Spider mite( sucks the juice from the leaves. Lives on the underside of the leaf. The leaves turn brown, yellow and fade).
- Grassland bug( sucks out saplings, buds, flowers, and leaves. Juices. Whitish dots appear on the plant. The buds are deformed, the leaves curl).
- Scoop-gamma( damages the ground portion of the stem closest to the roots. Lives in the soil).
After seeing the damage on the plant, you can identify the pest that hit the planting. As they multiply quickly, take action should be decisive. In some cases, manual pest collection helps.
How can flowers get sick
The list of diseases of perennial and annual asters is quite varied. Most diseases are classified as fungal or viral. They can affect both individual stems and entire plantations. Diseases spread very quickly, so action should be taken quickly and decisively.
To control aster diseases, it is necessary to know their varieties and visible manifestations. These can be:
- Black leg( black seedlings and seedlings turn black, the base of the stem rots, causing the stem to thin, and the flower to perish).
- Rust( swelling appears on the underside of the leaf. Gradually, the leaves wither and dry out).
- Fusarium( often affects only one half of the plant. The stalks are affected by brown spots, and the leaves turn yellow, then turn brown, twist and wither. Long root long stripes appear at the root neck. The stem tissues can form cracks. The plant very quickly fades).
- Septoria( characterized by light brown spots on the leaves. All the leaves are quickly affected, followed by their drying out).
- Jaundice( manifested in lightening of the leaf, greening of buds. The plant stops growing).
What does the fight against diseases and pests of asters include?
Prevention of many diseases will help prevent the occurrence of problems. For prevention, which can protect against the need to combat diseases and pests of asters include:
- Autumn digging soil. Deep loosening of the land, as well as digging it between shrubs helps to destroy the habitats of pests and disrupt their natural habitat.
- The right choice of colors for planting. If it is not possible to look for reasons why asters are dying in the garden, or if there is no time to fix problems, it is better to choose varieties resistant to diseases and pests for planting.
- Autumn shrub processing. It includes the removal and burning of annual shoots and perennials dying for the winter stalks. Such care extends the life of shrubs.
- Choosing the right density of shrubs when planting. If the planting is too tight, the disease easily spreads, since walking between the bushes is insufficient. If planting plants is not too tight, you can save the asters from the black leg and other diseases.
How to treat
Treatment of diseased shrubs takes place in several stages. Their sequence is as follows:
- damage detection;
- classification of the disease;
- treatment procedures.
There are no general rules for the treatment of asters, it should be chosen in accordance with the type of disease. That is why, before starting the procedure, it is necessary to determine exactly why the asters curl the leaves or other visible damage occurs.
The following table will help in choosing the treatment methods.
As can be seen from the information described in this article, prevention is important in the care of asters. Using fungicides, fertilizers and pesticides for asters, you can prevent the appearance of many diseases and the spread of pests. In addition, to prevent the occurrence of any damage to the landing, we recommend regular weeding of the site and loosening of the upper layers of the earth. In the event of the appearance of diseases or damage by pests, it is necessary to first remove damaged stalks and leaves. In this way, the early spread of the disease can be avoided. Therapeutic measures are appointed as the type of disease is determined.