Twisting leaves is a natural reaction of plants to the lack of moisture. Since the surface of the sheet, there is an intensive evaporation, the plant tries to save the precious liquid, reducing the area of loss. If you see that the leaves wilted and began to wrap in the tube – this is the first signal to check the moisture content of the soil clod. Dry plants should be watered abundantly, and, after some time, paraglide dried the soil to break the crust. Observance of the basic rules of farming and irrigation and mulching will help to avoid unpleasant consequences and to increase the yield.
However, twisted leaves can be a symptom of a disease associated with lack of soil nutrients. This occurs most often with a lack of nitrogen, potassium, magnesium, manganese and sulfur. Remember, when was the last time you contributed to the soil mineral fertilizers. If it was a long time ago, should be feeding a complex fertilizer which includes trace minerals. Just do not overdo it, do not think that if you pour more miserable starved tree will thank you. Excess of mineral substances cause severe burns of the root system and can cause severe illness and even death. Follow the instructions.
By the way, about the overdose. A very common cause of Curling leaves on fruit trees and agricultural plants are chemical burns pesticides. You recently were treated to protect your garden from harmful insects or fungus, but today noticed that all of the plant stand with twisted leaves? Most likely you overdid it and threw up the solution a little more concentrated than it was required by the regulations. Unfortunately, in this case in addition to wait for nothing. To restore burnt leaves you will not succeed.
Take a good look at the plant, which curl the leaves. Often the cause of this phenomenon can serve the pests. Aphids, whiteflies, wireworms and larvae of the scoop – they all damage the root system or the leaves and cause loss of moisture and General oppression of the plant. Carefully monitor their plantings and don't let the little pests destroy your crops.
Advice 2: Why curl the leaves of peonies
Peonies - flowers that do not require special care when growing, but like many other plants they get sick. The first signs of disease on peonies are visible on the leaves: they can change color, shape, cover with stains, to dry, to twist. Twisting and leaf drying peonies often occurs from a lack of potassium in the soil or damage the roots of plants, for example, rodents.
"Rust" is one more reason, which can curl up the data sheets of flowers. When this fungal disease on the leaves of peonies appear at first small yellowish-brown spots, then these spots start to grow, leading to desiccation and twisting of leaves, and eventually death of the plant.
Peonies to grow up healthy, you need to properly care for them, observing all the rules. Since most fungal diseases occur due to excessive moisture of the earth, the flowers need to, first, put each other at such a distance that is well ventilated soil, second - time to weed the flower beds, the third is moderately watered and fed in a timely manner.
If your garden some plants affected by the fungus, to protect the peonies from disease, you should take preventive measures. For example, the earth around the flowers, you can spray once a week, one percent Bordeaux liquid or a solution of oxychloride of copper (six to seven grams per 10 liters of water).
Currently in stores you can see many different antifungal drugs: purchase a couple of tools and use according to instructions. Proven "Fundazol", "Topsin-M", "fitosporin-M", ground sulphur. In the fight against "rust and powdery mildew can be sent and a homemade copper-soap drugs.
Advice 3: Why do seedlings of eggplant rolled sheets
Generally, eggplant is a plant that is pretty well tolerated by all sorts of adverse environmental conditions, however, in the period of their stay in the premises of the torsion and poverty leaves can lead to death of seedlings. Therefore, if you notice that some leaves become slightly lighter, it is urgent to identify the cause of this and fix it, otherwise the plants will soon be able to curl the leaves that will lead to their death.
Often pallor and leaves twist eggplant says that they do not have enough light. If potted plants are in the back of the room, then move them closer to the window. Seedlings in any case should not be left under direct sunlight, otherwise the inevitable burns.
Also, the eggplant may not be enough water. Watering must occur two or three times in a week to defend water at room temperature. Remember, even with timely watering, the plant may receive less moisture, and the reason for that too the loose soil, which is not delayed water flows into the tray).
Inspect rolled leaves for better viewing, use a flashlight. If you notice a little light dots, remember this is a spider mite. In this case, will only treatment plants with special preparations from these pests.
To curl the leaves of an eggplant can from a lack of nutrients in the soil, especially if it is poor in calcium. If you have ruled out all of the above reasons, then swipe calcium fertilizing seedlings. Most likely this will be enough for the plants to gain strength.
If you transplanted the seedlings to the greenhouse, where there is enough light, moisture, nutrients, and other things, and the seedlings began to curl the leaves, in this case, will only the pouring of the soil with soft water (this procedure helps to remove excess salt). To do so, preferably before landing, otherwise, dig up the seedlings, slide the pouring, and after a couple of days again we will plant eggplants.
Advice 4: Why Anthurium blacken and dry leaves
Why dry leaves from houseplants and how to deal with it
The main reasons why the dry leaves of Anthurium, include the following:
- insufficient watering;
- too dry air;
- defeat the greenhouse aphids;
- Anthracnose, etc.
Typically, when bad watering and insufficient humidity leaf plates quickly wither and dry. The intensity of irrigation should depend on the time of year: in summer water the Anthurium should be abundant, and in winter reduce watering. Basic rule: between waterings substrate in the pot should dry on a 1/3-1/2 pot. The perfect humidity indicator for growing this houseplant is 85-95%. If to create such conditions, the leaves of the plant won't dry.
If the Anthurium does not bloom, the reason lies in insufficient light and incorrect feeding.
When Anthracnose leaf plate begins to dry from the edges, then the thinner the sheet, and after it dries completely. Treatment of infected plants is in the handling of its leaves systemic fungicide.
In case of defeat houseplants greenhouse aphid Anthurium leaves shrivel, twist, and covered with bright spots (this process is accompanied by abscission of the flowers). To get rid of pest affected plants treated with preparations "Malathion and Actellic".
The blackening of the leaves of Anthurium and combat this phenomenon
Causes blackening of the leaf plates:
- direct sunlight;
- inappropriate temperature mode;
- the predominance of calcium salts in the substrate.
Anthurium bad moves drafts: its leaves curl and blacken. Therefore, this indoor plant you want to move to another safe place for him.
Watering hard and cold water can cause the appearance of brown spots on the leaf laminas of Anthurium.
From direct sunlight Anthurium leaves turn black, that's why this houseplant is a must pritenyat. Ideally, this should be filtered sunlight or partial shade.
Too high or too low temperature will cause black spots on the leaf laminas of the plant. Indoors in the summer period, the temperature should range from 25 to 28C, and in winter - 17-19 ° Celsius.
On the presence of calcium salts in the soil evidence of limescale on the inside of the pot. In this case, we recommend to change the substrate (if you replace the soil completely impossible, at least to perform the substitution of top soil layer), thus enriching him with leaf humus or peat. In the future, houseplants need to be watered exclusively with soft water.
Advice 5: Why curl the leaves of tomato
The excess fertilizer
With the best of intentions, i.e. to increase future harvest, gardeners-fans bring in soil under tomatoes to nitrogen fertilizer. After all, they are mostly determined by high yield. Meanwhile, when excess nitrogen in the soil occurs opposite result – fruit formation does not occur. And begins the process of leaf roll in the tube, which soon dry up and fall off.
As a rule, along with twisted leaves an excess of nitrogen is also seen in the thickening of the stem Bush and the abundant emergence and development of laterals.
To reduce the concentration of nitrogen in the soil you once, but abundantly watered bushes of tomatoes and plenty of water. This way you will wash the top layer of soil. But it is necessary to comply with one condition – the water should leave the site, not zastaivayas near the plants (just dig the groove runoff). Otherwise, your tomatoes will suffer from overabundance moisture.
The leaves of tomatoes start to curl from excess moisture and lack of it. To remedy the situation, you should in the first case, temporarily stop watering the plants, periodically loosening the soil under the stem and mulching them to prevent crust formation, which will not allow air to the roots. In the second case (lack of moisture), increase the frequency of irrigation or volume of water under every Bush. It is also advisable to mulch the soil surface under the bushes, pine needles, sawdust or large cones.
Pests and viral infection
If you notice that the leaves of the tomato bushes had twisted, but you are not zealous with the nitrogen fertilizer and watered correctly the plants, tear a few leaves curled, expand them and try to consider if there are pests inside. If any, please seek the advice of a specialist in the store. He will advise you which drug to treat the bushes to get rid of pests. Usually recommended insecticides "but the taste", "Alatar", etc.
If you have nothing and no one will discover inside the twisted tomato leaves, most likely, you have encountered a viral disease of plants, which, alas, cannot be cured. The output in this case, one: removal of sick bushes.
After manipulating with diseased plants, wash your hands thoroughly before moving on to a healthy one. And in any case, do not work with healthy bushes of tomatoes in the same gloves that you touched the sick bushes.
Attention! If you have a large plantation of tomatoes, you can see the first signs of viral infection in plants (this is just rolled up leaves). The following manifestations of the disease – excessive blossom drop, small ugly fruit (like wood). Get rid of these plants without regret and never take their seeds, even if a viral infection was formed after the appearance of the fruit, seemingly quite healthy.
Circumcision leaves and remove side shoots
Topping separate branches from the tomato Bush, and deleting excessively large number of laterals, especially the overgrown, can cause leaf rolling in tomatoes. Normal during the week, you can cut the plant no more than 2 leaves. With more intensive cropping and side-shoot removing disturbed the natural balance between the roots and aerial parts, resulting in curl, and leaves.
Advice 6: Why yellow leaves of the cucumbers
Often the reason that the yellow leaves of the cucumbers, it becomes the rotting roots of the vines. Signs of this crack at the bottom of the stalk and premature decay. The reason for the trouble may be incorrect watering: in small doses, but too frequent. The water remains on the surface, the roots begin to move the top and become vulnerable. They can damage weeding, hilling, ultraviolet radiation.
Abundant, but very rare watering is also not useful vegetable crop, as the roots podgniet due to excess water. Optimal water cucumbers 2 times a week (about 25 litres per plant). Consider already saturated the ground with moisture to further keep the garden. Root decay can occur if water for irrigation was too cold, and unexpected frosts.
To reduce the risk of root rot, the seedlings should not be planted in the former garden with melons. Also, it is not too high hill of cucumber stems. If the roots have begun to rot and the leaves turned yellow, diseased plants must be uprooted and destroyed, the rest are treated with copper oxychloride (40 g per ten-litre bucket of water). The temperature of the solution must be at room temperature.
Always carefully vypilivaya all the weeds on vegetable beds, because they winter many pests of vegetable crops.
Bacteriosis of cucumbers
Disease cucumber bacteriosis is a common problem. The disease is favoured by high humidity of earth and air, and is the indispensable companions with regular watering. Bacteria may infect the seedlings, cotyledons, fruits that rot before ripening. Spots between the leaf veins in this disease, angular, brown or dark green. In the rain and after the condensation, you can easily put your cucumbers the diagnosis of "bacteriosis": spots on the leaves become oily, appear a drop of turbid mucus.
Bacteriosis of cucumbers treated by bactericidal drugs, such as "Previcur" (20 ml per ten-litre bucket of water), "Quadris 250 SC" (6 ml per 5 liters of water) or "Atfal" (20 g per bucket). In the fall, after harvest, deeply perepihnutsja the garden – even if the holes remained sick leaves in winter, the bacteria will die in the ground. It is important to remain competent rotation to completely clean the ground. Instead of cucumbers it is best to plant oats, peas or beans and return the favorite vegetables on a former place not earlier than 4 years.
The leaves of cucumbers can turn yellow if the culture was infested by insects. Mostly vines olubowale bocheva aphids, loves damp and warm weather. As a rule, when it appears in the garden don't just turn yellow and curl the leaves, but also damaged the ovary and the inflorescence. Good results in combating this pest gives vegetable processing plants with a solution of soap (300 g per ten-litre bucket of soft water). If the tool does not work, you will have to spray vines with insecticide medications, such as "Malathion", "Trichloral", "Fosfamid". Proceed according to the instructions on the package.
If you had to spray the vegetable garden with chemicals, all the cucumbers that were on the vine during the treatment, you will have to throw away. Following the ensuing fruit will be eaten.
There are many garden pests that cause damage to the leaves of cucumbers behind the growth of the vines and reduced yields. Among the most common - worm-like nematode, spider mites, stem borer. At the first sign of insects attack a plant can try to save by treating with chemicals. But if the vine suddenly began to quickly fade, dig and burn not only diseased plants, but the soil from the hole. Even if you do not find out the reasons for yellowing cucumber leaves, stick to a simple rule: the infection should be removed timely so that the disease does not spread to the whole bed.