It would seem that what problems may arise with the cultivation of such an unpretentious and simple plant of the umbrella family!
And yet there are diseases of dill, and the fight against them is simply necessary if you want to get a rich harvest of fragrant and healthy herbs. We learn what diseases this plant can suffer, how to deal with them and what preventive measures to take so that they do not arise.
Peronospora (Peronospora parasitica) is very dangerous with rapid development, to which agrarians do not always have time to react. Perinosporosis can destroy a healthy plant within a few days. Frequent precipitation and temperature changes are a favorable factor for this disease. The root cause of the disease is the abundance of weeds and the rest of the old crop in the soil. The main hawkers of the spores of a pathogenic fungus are aphid and whitefly. And also there is a risk to face the infected landing material.
In the initial stage, yellowish spots appear on the outer part of the foliage, which after a while begin to acquire a brown tint. The inner part is covered with white and gray bloom. The leaves wither and shrivel, as a result, the escape completely dies. For treatment, you can use drugs of biological origin - Fitosporin-M, Planriz, Bayleton, Baikal-EM at intervals of 2 weeks. If the situation is critical, then heavy chemicals are used to save the crop - Acrobat MC, Oxyhom, Ridomil Gold. After their use dill can not be eaten for a month. Popular methods of struggle in this case will be useless, even at the very beginning.
Fomaz (Phoma anethi Sacc) is a fungus that progresses on an infected shrub for only 2 weeks. Because of this, the infection can be repeated several times per season. Phomosis affects both young shoots and rooted mature plants, which also become a source of infection. A lack of boron in the soil, high humidity and high heat are excellent conditions for the development of the disease. Malicious disputes are spread by insects, wind and water. The fungus is able to preserve its vital activity on weeds, dead remains and fallen leaves.
The main sign of fomoz is dark brown oblong spots with black patches and black border. The lower leaves can become pink, and the roots are covered with a pressed erosion of a brown color. Sick bushes cannot be treated with chemicals, so they should be destroyed, and then the soil should be disinfected. The remaining beds must be regularly treated Bordeaux mixture. Prevention is the main method of protection against fomoz. With a solution of "Rovral", "Tirama" or "Fundazola" it is worth treating the soil before sowing. Soil enrichment with potassium and phosphorus, foliar application of boron-containing preparations during the growing season will all strengthen the immunity of plants.
Mealy dew (Erysiphe umbelliferarum) is a very common disease that affects not only the umbrella family. It can develop both in open ground with high humidity and low air temperature, as well as in closed due to non-harvested weeds. The main carriers are aphids, ants and insects capable of flying. Initially, a white tinge, resembling a spider web, appears on the leaves. Over time, it becomes dense and spreads to the stem. Shoots become dry, lose their juice and spicy flavor. Dill can be eaten, but the taste characteristics will be different from the usual.
At the initial stage, mildew is treated with folk remedies. After removing the dried parts, the dill is sprayed with diluted mustard powder and tincture of garlic and onion arrows containing natural antiseptic - phytoncids. And can also help processing foam household, tar and green potash soap. Fine spraying with diluted whey (1: 10) with iodine (1 drop per liter) also gives excellent results, since the fungus dies in an acidic environment. At the advanced stage they are sprayed with fungicides - drugs containing copper. Some of them (“Strobe”, “Gamair”, “Mikosan”, “Alirin-B”) are safe for human health and the environment, as they are of biological origin. Heavier products are Bordeaux blend and copper sulfate. Antibiotics are often used, for example, Terramycin.
Verticillium wilt (Verticillium arbo-atrum) is characterized by a long incubation period. The causative agent of the disease that develops in the soil may not express itself within 2-3 years. For this fungus, a favorable environment is high temperature in a complex with low air humidity. Causes of verticillia can be covered in poorly rotten compost and manure. From soil fungal spores fall on the damaged roots, infecting the plant.
Mycelium of a mushroom gets into vessels, corking them. At the same time there is a poisoning of tissues excreted toxins. The ground part of the shoots no longer absorb nutrients and moisture. Abundant watering situation will not fix. Over time, the bushes shrink and cease to grow.
When the weather is sunny, the dill begins to turn yellow, acquiring an unnatural shade of red over time. In the last phase, it becomes brown, with twisted and sluggish foliage. To date, verticillus treatment can not be. During the active growing season, it is important to do prophylactic treatment with biofungicides (“Fitotsid-R”, “Fitodoktor”, “Fitosporin-M”). And when planting it will be useful to add granules "Gliocladin", "Trichodermin", "Entobacterin."
Young greens in greenhouses and greenhouses are prone to a fungal infection such as black skin (Syngenta). The black leg progresses rapidly in conditions of poor ventilation, extreme temperature changes, excessive moisture, and insufficient soil loosening. The source of infection is diseased seeds. This disease can destroy a significant percentage of the crop during seedlings. The stem becomes thinner at the base, darkens and dries.
The bush falls to the ground under the weight of its weight. Having noticed the first signs of infection, it is necessary to start watering with a weak solution of potassium permanganate. Watering itself should be drastically reduced. One of the well-established folk methods is a tincture of onion peel, wood ash and 3% ethyl alcohol. The drugs that help in this case are Baktofit, Planriz, Fitosporin-M.
Fusarium (Fusarium) is a dangerous infection for many cultures. The pathogenic fungus infuses tissues with toxic toxins, making them unsuitable for food. After a one-month incubation period, a rapid failure occurs. The plant may die completely in a few days. The fungus develops in conditions of heat and high humidity, likes light acidified soil. Spores are spread by insects that feed on plant sap, for example, whitefly, aphids and spider mites. Soil, saturated with chlorine, is also a favorable factor for development.
Most often, the symptoms become noticeable at the advanced stage of the process. Distribution starts from the bottom. The leaves change color, and on stem sections clearly show the characteristic dark spots, which indicate the vascular occlusion with the mushroom mycelium. Folk remedies to combat fusarium help only for preventive purposes. Shrubs with visible damage are removed and burned. The rest are treated with biofungicides ("Fitolavin", "Agat-25K", "Vectra", "Vitaros"). As the heavy artillery used "Oxy", "Bravo", "Raek", "Diskor".
How to deal with pests?
Besides the fact that insects are the main hawkers of spores of pathogenic fungi, they themselves are able to deliver a lot of problems to the farmer. The high concentration of essential oils contained in spiced dill scares most pests, but, unfortunately, not all. In the fight against them, in addition to processing the combined drugs, a significant role is played by folk remedies.
The insect lays its eggs in the ground and on the plant itself. The hatched caterpillar feeds on seeds. She eats, and then braids the buds. For prevention, it is worth removing ripe umbrellas. Wild umbrella can be a breeding ground for infection, so you should clean the whole garden from them. You can plant sage, wormwood, rosemary, marigold or calendula nearby. They have a strong odor that scares the mole. Infusions prepared from them, it is recommended to regularly spray dill beds.
Dill rust fungus (lat. Pucciniales)
The disease develops in early June in the form of spots of brown-yellow color. To get rid of rust, the plant is treated with 1% Bordeaux liquid three times a month.
Dill diseases and fight against them - rust photo
For prophylaxis before planting seed is soaked in hot, and then cooled in cold water, then dried.
Fusarium (lat. Fusarium)
Causes of dill disease in excessive watering, overheating of the soil and damage to the roots of the plant. Fusarium wilt appears on the lower leaves, and then goes to the top. Green gets a red and yellowish tint. In advanced cases, the plant completely fades.
Fusarium wilt dill manifests itself due to waterlogging
In the initial stages, the development of the disease prevents Fundazole or Topsin. In case of mass infection: destroy infected plants, process the rest. Monitor the spread of the disease.
Phomosis dill (lat. Phoma anethi Sacc)
Fungal disease of stems and dill in the form of dark elongated spots with black blotches. In rare cases, fomoz affects the roots. Spores of the fungus spread through the air, in the water, are carried by insects, retain their vital activity in the ground, on fallen leaves and weeds.
Finding fomoz dill should remove infected plants
To treat the already affected parts of the plant late, identifying fungal diseases of dill, and the fight against them is to remove the dying leaf and stem parts, or the entire bush. The rest of the garden beds are sprayed with Bordeaux liquid twice a month, but no later than 2 weeks before collection and consumption.
Verticillous wilting (lat. Verticillium arbo-atrum)
The disease develops at a temperature of 17 to 22 degrees Celsius, after spores get into damaged roots, or as a result of insect activity. The cause of infection may be soil or organic matter introduced with spores.
Dill Verticillosis Insect-borne
After the penetration of fungal spores into the plant, the mycelium blocks the flow of nutrients, and the plant begins to wilt and die. When detecting the first signs of dill disease, Fundazole or Topsin is used. In advanced cases, the plant is destroyed. In preventive measures, beds are sprayed with Previcur.
Cercosporosis (lat. Cercospora anethi)
Fungal disease preceding fomoz. It has the appearance of dark brown spots on the ground parts of the plant, which brighten when spores mature. The source of infection is poor seed, crop residues not harvested from the ridges, which carry spore-borne parasites.
Dill diseases - photos of chalcosporosis
To combat cercopiasis, copper-containing preparations are used (copper oxychloride 20 g. Per 5 l of water) or 1% bordian mixture.
Dill pests: photos and control
Thrips, mites, tsikadki, aphids and bedbugs are infested on the ground portion of dill. Caterpillars, grubs, bears, and wireworms damage the root system. Before treating dill from pests, it is important to remember that it is eaten without heat treatment. Therefore, it is recommended not to use chemicals at all, and we will consider folk remedies.
Aphid (lat. Aphidoidea)
Many species of aphids are the main pests of dill, and they must be constantly controlled as they carry diseases. From the parasite, gardeners use tops left over from harvesting tomatoes and potatoes. The tool is prepared from crushed stems, filled with 10 liters of water and boiled for 30 minutes. Then in the prepared mix rub soap (30 gr.). The treatment is carried out in the morning and evening.
Aphid - a dangerous pest of dill
Umbrella mole (lat. Depressaria depressana)
In case of an injury with an umbrella moth, dill is dug out and burnt. The food for the insect are the seeds, while the pest eats and weaves the buds. In preventive measures, healthy ripe umbrellas are cut, and the garden is thinned from wild umbrellas, on which the parasite can dwell.
Dill Pests - Umbrella Moth Photo
Carrot listobloshka (Latin Psyllidae)
It sucks the juice from the plant, in advanced cases the deformation occurs, and the stem dries out. For the prevention of clean wild carrots and coniferous planting, carefully loosen the soil, and in a timely manner take measures to combat weeds.
To combat the pest use an infusion of orange peels, tobacco dust, or a decoction of tobacco. To do this, 10 kg of hot water dissolve 1 kg of tobacco. Insist 24 hours, filter, rub 40 grams. soap, then proceed to the spraying.
Carrot leafbill causes deformation of the stem in dill
We considered which pests and diseases affect dill - a photo and a description of the signs of damage will help determine the infection and the parasite in a timely manner, as well as begin treatment. As a preventive measure, it is necessary to select and decontaminate seed, plant seeds in lightly loosened soil in well-ventilated lighted areas, alternate crops with melons, nightshade, or legumes.
First of all, the lower leaves of dill are affected by fusarium: they turn yellow, then turn red or turn brown. Gradually this happens with the upper leaves and the wilting of the whole plant begins.
The reason lies in the defeat of the fungus Fusarium, which falls into the tissue of dill when watering and overheating of the soil, poor loosening.
Dill diseases: how to deal with them
Dill diseases and the fight against them is not easy, because the plant is characterized by precocity, and it is impossible to use toxic chemicals in relation to fungi if you do not want to poison yourself by eating greens.
In addition, one-time processing mushrooms are not terrible. So, we will try to prevent infections and the development of diseases.
Dill diseases and how to deal with them
Dill disease control methods
Dill – annual plant up to 125 cm tall, stem is hollow, thin leaves with multiple leaves, flowers of yellow color form a complex umbrella, blooming, form oval brown fruits - seeds. Dill is a fairly unpretentious plant, but it is often affected by various diseases that prevent the gardener from getting a good crop of fragrant greens. About what diseases of dill are common and how to deal with them, this article will tell.
Dill disease prevention methods
Here's what to do to prevent the fungus from fennel defeat:
- Properly choose a place for planting dill. In order for the plants to grow healthy, we select solar and windy areas with light, loose soil for sowing seeds. If the soil is sour, we lime it.
- Do not plant dill in the same place.. To avoid infections, we do not plant dill in the same place where it grew last year. Alternate it with melons, legumes or nightshade, and do not sow near other umbellas.
- Disinfect the seeds. To protect the crop from fungi, disinfect the seeds before planting.
- Dilute 1 gram of potassium permanganate in 100 ml of warm boiled water - we get a dark solution.
- We put the seeds of dill in a bag of natural fabric.
- Place the bag in the solution of potassium permanganate for 20 minutes.
- Right in the bag we wash the seeds in boiled cold water.
Spores of the fungus during such processing die, and you get a rich harvest of healthy greens.
- Do not sow seeds too thick. If we sow the seeds too thickly, the plants will be weak and easily attacked by fungi.
- Time to remove weeds. To prevent spores of fungi from weeds to dill, be sure to remove them from the ridges and paths between them - all along the perimeter. We pull out the weeds in a compost pile.
In addition, the disease of dill can be prevented by regular fertilization - with potassium and phosphorus. Do not interfere also foliar feeding a weak solution of borax.
Now you know what the diseases of dill are and how to combat them. Follow all recommendations, and your dill beds will be in order!
Due to the fact that the growing season of dill is quite short, as well as this green is eaten fresh, it is undesirable to emphasize the processing of chemicals. It is better to make sure that the plant is not sick.
Experienced gardeners usually soak the seeds before planting in a solution of potassium permanganate or simply in warm water (approximately 45 degrees). The carrier of the disease in such conditions die. It is not necessary to plant dill in the beds too thick, dense plantings contribute to the development of various infections.
In addition, it is very important to maintain crop rotation in your garden, especially when you consider that the diseases of dill are similar to the diseases of carrots or celery. Diseases also often suffer from pests. To reduce their activity, it is necessary to dig up the beds every fall to the depth of the shovel, removing weeds and remnants of old plants.
Why does dill turn yellow, blush, turn gray?
When growing dill gardeners are often faced with the fact that the green begins to change color. Asking what to do when the dill turns yellow, you need to find out the exact cause. Color change may occur due to improper watering - greens do not accept excessive moisture or, conversely, dry soil. Also, the cause may be uneven landing. Between shoots it is recommended to leave a distance of about 2 cm, so that the root systems do not intertwine with each other. In the case of a thick landing, the first shoots should be immediately removed in order to maintain spatial isolation.
The reasons why dill reddens most often lie in the increased acidity of the soil, when the phosphorus in the soil content becomes insoluble. Under these conditions, the roots of seedlings do not receive nutrients and the leaves become red.
When green leaves turn gray, a probable problem lies in the viral disease. In this case, it is better to immediately destroy the affected specimens in order to prevent the spread of the disease. One of the visible symptoms, in addition to graying leaves, is the formation of wet rot at the very base.
The pest occurs in violation of the rules of crop rotation. Carrot flies eat up the stems, which causes rot and eventually fades.
Several varieties of caterpillars can strike dill. Pests gnaw foliage and stems, reducing the amount of the crop.
Prevention and treatment of diseases
In order to prevent crop diseases, it is important to sow exceptionally healthy seeds and to disinfect before planting. Ventilated and brightly lit areas with fertile soil should be selected for planting. If the disease has affected the dill, even with the creation of suitable conditions, it will be necessary to combat the use of specialized fertilizers.
Top dressing from yellowing and drying of dill
Constant feeding of crops with potash and phosphate fertilizers will help save the crop from disease and drying. If compost or manure is used, in which harmful components may remain, they should be replaced with additional fertilizers created by the factory method.
Photos of diseases of dill, ways to deal with yellow, red, black plants + video
Despite the unpretentiousness of dill, it is not always possible to obtain the desired greens. And the matter is that diseases affecting plants, the causative agents of most of which are harmful fungi.
According to the results of many years of observations carried out by seed and breeding specialists, powdery mildew, fomosis and churches are most dangerous for dill.
However, this is not a complete list of diseases of dill.
What to do if dill turns yellow in the garden, or its greens turn black and curl? Recognizing the disease of the garden crop and determining the control measures will help describe the diseases and photos of affected plants.
Cercosporosis has a lot in common with dill fomoz and, in fact, precedes the development of this disease. This is evident in the photo of dill, and the fight against disease also includes general measures.
Why does dill turn black in the garden? All aboveground dill organs are affected by the infection spread by the fungus Cercospora anethi, where dark or brown spots appear at the spots where the fungus is embedded, eventually taking on the shape and elongated along the vessels.
When spore ripening begins, the spots become covered with a dense, brighter bloom. The source of infection is stored on mature seeds, as well as on the dry residues that have not been harvested from the beds.
Dill disease control measures
Since green crops, including dill, are extremely early, toxic chemicals cannot be used to control disease-causing fungi and pests.
Yes, and as seen in the photo of diseases of dill, the fight against them can not be limited to one-time treatments. Therefore, the focus should be on preventing and preventing the development of infections that are dangerous for crops.
To exclude the spread of disease through the seeds and prevent fungi from ruining the seedlings, it is extremely important to choose only proven healthy seeds and also to disinfect the seeds before planting.
This can be done by soaking the seed for 20–30 minutes in water with a temperature not higher than 45 ° C.
In this case, the fungus dies, but the germ does not suffer, which makes it possible to obtain healthy plants and a bountiful harvest of fresh greens.
For sowing, it is necessary to allocate well-lit ventilated areas with light loose soil. Soil with an acidic reaction is subjected to liming. Dill should not be planted for many years in the same place.
It is better to alternate the crops of this culture with legumes, nightshade, melons. Since umbrella crops are often affected by certain diseases and pests, it is not worth adjoining the beds of carrots, dill or celery.
Do not allow excessive planting density, which contributes to the weakening of the plants, and the development of various infections.
Soil and flying pests can successfully spread fungal infections. The reason why dill leaves are curled may be a colony of aphids, settled on plants.
But if insects can be washed off with water, then the fungi that get into the fabric as a result of punctures cause irreparable consequences.
And here it is vital to take all measures to protect dill, not only from aphids, but nematodes, wireworms, carrot moths and miner flies.
It is possible to secure plantings by regularly removing all weed vegetation, both on the beds themselves and along their perimeter. When weeding and after harvesting, plant residues that are stored are not necessarily destroyed.
What should I do if on fennel beds the yellow dill turns red or leaves the plant curled?
Regular feeding of umbrella crops with phosphate and potash fertilizers will help to protect dill from fungal infections and other diseases.
If compost or manure is used for fertilizer, in which the spores of fungi are perfectly preserved, it is better to replace them with fertilizers produced by the factory method.
A good remedy is foliar dressing dill and other green plants with a weak solution of borax.
Pests, diseases of dill and fight against them
By preventing the disease of dill can be harvested a great harvest of greens
Dill (lat. Anethum graveolens) - spicy herb of the umbrella family, which has become very widespread.
Due to its beneficial composition and pleasant taste, it is grown not only on the site, but also in the home garden.
But in order to get a good harvest of fresh herbs, it is important to timely treat the dill, the diseases and pests of which can destroy the whole planting.
Dill pests and control
Insects feeding exclusively on dill do not exist. But many pests damage its crops along with other vegetables.
Wireworms and loops, larvae of the Maybeetle, the bear and the caterpillars of the scorching scoop damage the underground parts of the plants. Moles and field mice, ants can harm the roots by tearing holes.
Ground parts infect spider mites, thrips, listobliski, tsikadki, and many other insects. Do not disdain greens and various slugs.
Culture rarely takes a leading place in the garden. All these living creatures would be incorrectly called pests of dill. The fight against them is carried out when they exceed a critical amount and is usually caused by the defeat of other garden crops. But there are limited specialized species that emit dill with their attention.
Umbrella, other names: dill, carrot, anise - mole
Dull butterfly, fore wings brown, slightly reddish brown, up to 19 mm wide, rear gray. The genus Depressaria has 109 species, somewhat different in appearance. Caterpillars are brown with a reddish tinge, greenish between segments. For the year it is derived from one (in the north) to three (in the south of the countries of the former USSR) generation.
The testes of umbellate crops are amazing: carrot, cumin, anise, dill, hogweed, coriander and others. Caterpillars devour the buds and immature seeds, weave umbrellas around the web, holding them together. Significant harm is brought only with visible areas of the testes.
Shchyatnik line (grafisoma striped, Italian bug)
Bug up to 11 mm. long “Italian” is not a reference to the country of origin, but to a distant resemblance to the striped coloring of the Vatican Guards. It is difficult to confuse with any other pest - a very bright insect. And for good reason: such a noticeable color warns birds about its inedibility.
When danger does not fly away, and freezes, releasing a stinky and burning secret. For humans, this is not poisonous, but the birds do not touch it. The proboscis sucks the juice from the immature seeds of umbrella plants, young shoots, inflorescences. As a result, the seeds are puny, poor quality or not formed at all.
What to do?
Pesticide treatment is undesirable: dill is usually used fresh, just washing the leaves, and the addition of poison to the body somehow does not seduce. Fortunately, the pest has delicate covers, and it is advantageous to carry out the fight against aphids on dill without chemicals. We use homemade poisonous solutions, such as tincture of tobacco or tomato tops.
Potato or tomato tops (poison - solanine, which gave the name to the whole family of nightshade - Solanaceae) fill with water. A bucket of water for 1.5-2 kg of crushed raw materials. Withstand 3-4 hours or boil for half an hour, add a little soap or powder. Soap reduces surface tension, as a result, the solution is better distributed and sticks.
Tobacco plants (the active substance is nicotine) 100 gr. greens per liter of water a day insist, filter, add soap and spray. You can use and dusting tobacco dust.
More tinctures for removing aphids make of celandine, feverfew, hot pepper.
And how to remove aphids from dill, if a small amount is still present on the picked greens? The easiest way is to rinse with a strong jet of water.
Pesticides should be used with caution on green crops. If part of the poison is theoretically destroyed during storage or cooking of vegetables, then dill is used immediately. And without heat treatment. It is better to try to do without spraying while growing it.
How to remove powdery mildew from dill
Mealy dew is a disease whose pathogen Erysiphe umbelliferarum is a mildew of fungi, manifested by the presence of white bloom, similar to webs, and subsequently the plant becomes as if sprinkled with flour. Optimal conditions for the development of powdery mildew - temperature +18. +20 ° C, and humidity around 70-80%. In the fennel greens affected by this disease, the aroma and taste deteriorate.
Single leaf lesions are removed from the plant. Powdery mildew is removed from dill by spraying with chlorine dioxide, a weak solution of manganese or a mixture of antibiotics - Terramycin, Penicillin and Streptomycin in equal proportions.
As a preventive measure for the infection of this disease, dill can be pollinated with sulfur. Also in the fall, it is necessary to remove plant residues from the seed beds, since spores of this fungus can spend the winter there.
How to deal with downy mildew
Downy mildew (peronospora) is a disease similar to external signs with powdery mildew. If there is a question why the dill turns yellow on the beds, you need to look at the plant, it is possible that he was struck by peronosporosis. After a while the yellowed leaves become brown in color, the underside of the leaf is covered with a dense white layer of mushroom mycelium. The leaves and shoots gradually dry and wither, the plant growth slows down.
You can get rid of downy mildew spraying the plants with a solution of colloidal sulfur (1%), as well as a composition of 25 g of soda ash, 20 g of soap and 5 liters of water. For the prevention of this disease, apply plant treatment Bordeaux mixture, at least two or three times.
Signs of fomoz dill and their treatment
Phomosis causes the fungus Phoma anethi Sacc, which affects all the ground parts of dill, the roots are less likely to suffer. It shows fomoz dark areas with clear black dots. Spores of the fungus spread well through the air with the help of insects, and are also able to persist in the soil, weeds and fallen plant residues. Strongly affected shoots of dill cut and removed from the site. You can get rid of fomosis by spraying the plant with Bordeaux liquid in several stages twice a month. Processing should be carried out not less than 14 days before cutting green and eating it in food. All plant residues are recommended to be destroyed in the fall.
Cercospora causes the fungus Cercospora anethi, with the defeat of which the stems and leaves of dill cover brown or dark-colored spots of elongated shape. Later, when the spores of the fungus ripen, the affected plant is covered with a bloom of light color. It is possible to get rid of the fescue of dill leaves by spraying with copper oxychloride - 20 g per 5 l of water or with a 1% solution of Bordeaux mixture.
Fusarium wilt treatment methods
Fusarium wilt is caused by Fusarium fungi. Fusarial wilt is caused by excessive watering, overheating of the soil, or damage to the plant's root system; infected seeds may also be the source of the disease. The disease first infects the lower leaves, then the upper ones. At the same time, the leaves and vessels of the stem turn red and yellow, and the dill itself subsequently fades. If more recently, healthy dill turns yellow, then the question is what to do, one answer is to urgently spray it with “Fundazol” or “Topsin”, since the initial stage of the disease is rather successfully treated. Strongly affected plant to be destroyed.
Causes and treatment of verticillary wilting
Verticillary wilt causes the soil fungus Verticillium arbo-atrum. Verticillosis - a serious disease, the best temperature for its development is +17. +22 ° C. Infection occurs through the roots of a plant or its damage by pests. The cause of the disease can also be soil with spores of fungus, compost or manure.
After the fungus enters the dill, its mycelium fills the vessels of the plant, along which the juice and nutrients move to the leaves, blocks this stream, after which the dill fades and dies. Treatment of verticillary wilting consists in spraying the plant with “Fundazole” or “Topsin”. Strongly affected dill bushes destroy. As a prevention, you can use "Previkur."
What to do with rust on dill
Dill in the first months of summer is prone to rust, which appears on the leaves and shoots in the form of brownish yellow spots. Get rid of rust by regularly treating the plant with Bordeaux mixture 3 times per month. As a preventive measure, before planting, the seeds of dill can be soaked in hot water for a while, cooled in cold water, and then dried. This manipulation will reduce the likelihood of contamination of dill plantations with rust.