How to protect your favorite marigolds - the decoration of our sites - from diseases and pests? Marigolds: cultivation and proper care Marigolds have dried up what to do.

Marigolds are bushes with an upright stem, pinnately dissected leaves of various shades of green and bright inflorescences. The height of the culture is from 20 to 100 cm. In decorative floriculture, 3 main types of tagetes are grown:

• rejected;
• upright;
• thin-leaved.

You can learn how to properly grow Upright, Thin-leaved, Rejected types of marigolds in the open field, as well as get acquainted with the photo of flowers.

Varieties of marigolds with chrysanthemum-shaped, double and semi-double flowers have been developed. The color of the hybrids is white, yellow, orange, red or two-tone.

Information. Some varieties of marigolds are used in cooking and medicine.

Diseases and their treatment

The stems, roots and leaves of marigolds contain active substances - phytoncides, which help to avoid most diseases. , compliance with the recommended watering regimen allows you to keep the plants beautiful and healthy. Planting tagetes in the garden on the beds helps protect vegetables from various pests, including nematodes.

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Marigolds protect many flower and vegetable crops from pests and diseases, however, the plants themselves can be affected by root rot, blackleg, spider mites, slugs and some other diseases and pests.

The most common marigold disease is blackleg. In young plants, at first light, and then darkening and decaying spots and constrictions are formed in the lower part of the stem, as a result of which they wither and die. To protect the tagets from this scourge, the seeds and soil must be treated with fungicides before sowing, and potassium permanganate must be added to the water when watering. True, its frequent use can lead to oppression of plants.

If, nevertheless, the seedlings began to die from the black leg, you should immediately remove them, reduce watering, drying the top layer of soil. The ground around the remaining marigold plants is sprinkled with calcined sand, perlite or ash. If this does not help and the disease progresses, the remaining seedlings urgently dive into fresh soil.

At later stages, in open ground, under adverse conditions, marigolds can be affected by root rot. Plants begin to lag behind in growth, turn yellow, and then die. You can prevent the disease if you create optimal conditions for growth for tagetes (planting in loose, structural, non-blocking soil; timely weeding; loosening). In no case should marigolds be fertilized with fresh manure or planted in those places where infected plants grew in previous years.

Sometimes at the end of summer, individual marigold plants appear in group plantings with yellowed shoots and deformed leaves with spots and patterns of yellow, cream, bronze color. There is also underdevelopment of buds and the absence of seeds. All these are signs of a viral disease. Infected plants should be removed immediately.

Of the pests, the spider mite most often annoys the marigold plant. It usually appears on seedlings grown at home or in greenhouses, but in dry, hot summers, adult plants can also be chosen. The leaves of affected marigolds first acquire a whitish tint, then begin to dry out and become covered with bloom. Frequent spraying with water helps to cope with this pest, since the tick does not tolerate high humidity, or with infusion of tobacco - 200 g of shag or snuff is poured into 3 liters of warm water, insisted for two days, filtered, topped up with water up to 10 liters, add 50 g of grated soap and mix thoroughly. Infusion is used immediately.

In greenhouses, and in hot weather in the open field, plants can be affected by the greenhouse whitefly. This tiny white butterfly (1 - 1.5 mm long) sucks the juice from marigold leaves. In addition, soot fungi settle on the sugary secretions of its larvae, as a result of which the leaves become covered with a black coating. With severe damage, one has to resort to spraying with pesticides, such as aktara.

In wet weather, marigolds can be harmed by slugs and snails. They gnaw holes in the leaves of plants or gnaw the stems. Slugs do their dirty work mainly at night, during the day their presence is indicated by shiny stripes on the soil and plants. To combat these pests, small boards, pieces of dense fabric, halves of apples or potatoes are laid out near the marigolds. Slugs are periodically collected from under them and destroyed. The soil around the plants is sprinkled with a mixture of ash and lime. Bushes can be sprayed with a suspension of mustard (100 g of powder per 10 liters of water).

And one more thing: it has been proven that the roots of three-month-old plants secrete substances that effectively disinfect the soil. Upright and sprawling marigold plants, planted next to roses, phloxes, gladioli and other plants, repel nematodes and thrips, and velvet infusion helps get rid of aphids, herbivorous bugs, cruciferous fleas, as well as disinfect bulbs and corms of garden flowers. It is not difficult to prepare it: half of the enameled bucket is filled with dry crushed marigolds rejected (all parts of the plant are used), filled to the brim with warm water and insisted for two days. Then filtered, add 40 g of laundry soap and add water to the original volume. Ornamental plants are sprayed with infusion of marigolds - when signs of damage appear; berries - before fruit ripening and after harvest; bulbs and corms of flowers are soaked for 8-10 hours.

Cute and unpretentious marigolds, which reliably protect the vegetable crops we grow from various diseases and pests, can sometimes get sick themselves. Most often, these beautiful and easy-to-grow plants are affected by black leg and destructive root rot. How to recognize the manifestations of this or that misfortune on luxurious marigolds in order to make a “diagnosis” on them in time and even try to save them?

Blackleg

This disease is most common on marigolds. In the lower parts of the stems on young plants, the formation of first light-colored, and subsequently darkening and decaying spots with constrictions begins. Such damage leads to wilting and death of plants.

In order to prevent the development of harmful attack, the soil before sowing marigolds, as well as plant seeds, must be treated with fungicides. And young shoots are recommended to be watered from time to time with a weak solution of potassium permanganate. Just do not abuse such watering - the frequent use of manganese can lead to oppression of plants.

If the ill-fated blackleg nevertheless attacked the beautiful marigolds, all infected plants should be removed immediately. And the frequency of watering in this case is noticeably reduced - seedlings are watered only when the top soil layer dries slightly. Around unaffected plants, the soil must be sprinkled with perlite or wood ash. If these measures did not give absolutely no effect, marigolds should be transplanted into new soil as quickly as possible.

root rot

Marigolds growing in open ground are easily affected by harmful root rot. Their growth when affected by these fungal diseases slows down significantly, and beautiful plants first turn yellow and then die.

In order to prevent damage to marigolds by destructive root rot, it is necessary to create the most favorable conditions for them: plants are planted only in fairly loose soil, which must be regularly weeded and additionally loosened. In addition, it is important to try in every possible way to avoid excessive watering and, especially, extremely undesirable stagnation of water. It is also not recommended to fertilize growing marigolds with fresh manure and plant them in areas where plants affected by root rot were found in previous seasons.

Gray rot

This disease develops on marigolds in fairly cool, damp and humid weather, as well as in case of excessive planting density. On the stems and on the leaves of beautiful flowers, wet spots of dark brown color begin to appear. All affected plants must be removed without fail, otherwise they will quickly infect their healthy counterparts.

Viral diseases

In excessively thickened plantings of marigolds in the summer, you can see plants with yellowed shoots and deformed leaves. At the same time, brownish, beige or yellow spots often form on the leaves. The buds on such plants, as a rule, are underdeveloped, and the seeds are completely absent. All these signs indicate that marigolds are affected by viral ailments. Alas, this infection cannot be treated - all plants on which the above symptoms were found must be promptly eliminated from the plots and burned without delay.

What to do with frozen flowers?

Frozen marigolds can also become excellent helpers for a gardener - in no case should such flowers be thrown away! It is enough just to bury them in a compost heap, and neither midges nor any other harmful insects will start in it!