Why do zucchini leaves turn yellow in the open field and what to do

Vegetable growers quite often face such a phenomenon as yellowness and falling leaves of zucchini. Biologists give recommendations on how to combat and eliminate this problem. But in order to know which method to use, it is necessary to establish the reason why the leaves of zucchini turn yellow in the open field.

Green on a vegetable crop is always an indicator of its he alth. So, if the leaves on zucchini curl, darken, turn yellow or fall off altogether, the plant signals that it needs urgent help.

Wrong watering of horticultural crops

One of the most important steps in growing any horticultural crop is watering. When performing the procedure, a number of rules should be observed:

Use only settled water for irrigation.
Irrigation should be done in the morning or evening. It is important to prevent water from getting on the greens. If this happens, the sun's rays burn the leaves, as a result, they curl and fall off the zucchini.
Often leaves dry due to lack of moisture in the soil. Watering should be timely and regular. The amount of irrigation should be determined according to the condition of the soil. It is important to prevent the occurrence of cracks on the surface of the earth. This harms the horse system of the bush. Stagnation of moisture in the soil is also detrimental. Excessive dampness leads to the fact that the leaves become covered with yellow spots and dry out.

The condition of the plant depends on watering and weeding, when watering, you should try not to fall on the inflorescences and not fill the bushes with water from above. This is one of the most important conditions for growing zucchini. It is necessary to weed the beds in a timely manner, preventing the grass from depleting the soil in the garden. Gardeners mulch holes with sawdust or dry straw. The procedure allows you to keep the soil in good condition and prevent cracking of the soil.

The leaves of zucchini seedlings are turning yellow

It is important to grow squash seedlings. Young shoots are sensitive and can be easily damaged due to improper care or lack of beneficial minerals in the soil.

The main reasons why the tops of seedlings wither or turn yellow:

If yellow leaves appear, the reason may lie in the lack of nitrogen in the soil.This factor can be determined by the specific distortion of foliage forms. The leaf turns yellow at first along the edges, then it deforms and falls off. You can correct the situation by applying nitrogen fertilizers to the soil. Funds are purchased in specialized stores. For seedlings, it is best to use water-soluble preparations. A solution is prepared from them and the shoots are watered.
Often, a young plant turns yellow prematurely and leaves fall off due to a lack of nutrients in the soil. Nutrient soil can be purchased at the store or you can cook it yourself. To do this, you need to take peat, coarse river sand and soddy land. All ingredients are taken in equal parts and mixed well. Seedlings are recommended to be periodically fed with complex mineral fertilizers. This will allow young sprouts to form the correct root system and strengthen immunity to various fungi.
Gardeners water seedlings from a spray bottle or through a sieve. The main thing is to direct the water to the ground, and not to the foliage. Remaining moisture on the leaves can lead to the appearance of various fungi or pests.

Tender and young seedlings need special care. Therefore, it is important at this stage of agricultural technology to strictly adhere to the rules and requirements for plant care.

Why do zucchini fruits turn yellow?

Often, gardeners face such a problem when already ripe vegetables turn yellow. There may be several contributing factors to the problem.

The most common cause of this phenomenon is excess moisture in the soil. It is necessary to properly water and monitor the condition of the soil. Large fruits due to their large weight can lie on the ground. Constantly being in dampness, they are affected by various fungi, as a result, the fruits turn yellow and deteriorate. It is important not to overmoisten the soil. If this happens, you can correct the situation by adding dry sawdust, sand or freshly cut grass to the hole.

Depleted soil can not provide the necessary nutrients to the bushes. The plant, having exhausted all the forces at the stage of fruit ripening, begins to die. The first sign may be wilting and darkening of the fruit. To prevent this from happening, the beds need to be well fertilized before planting. Zucchini perfectly perceive organic matter, so humus or manure is introduced into the soil.

Sometimes the cause of the yellowness of zucchini may be an untimely harvest. If the fruits are overexposed on the plant, then over time their peel will change color from light green to milky yellow. Such zucchini lose their juiciness. Their peel becomes rough and tough, and the seeds increase in size. Harvesting must be done on time to preserve its flavor.

Leaf damage by downy mildew

Fungi and viruses that infect the plant can lead to damage to the greenery on the bushes. A common cause leading to this phenomenon is infection of zucchini with powdery mildew. In order to detect this fungus in time, you need to know its main signs.

A characteristic manifestation of the disease is the presence of yellow plaque on the stems and the inside of the leaves. The infection quickly spreads through the beds and leads to the defeat of the bushes.

When small specks and yellow spots appear on the leaves of zucchini, an urgent need to treat the affected plant. Damaged greens are removed along with the branches. If the fungus has spread to the entire bush, then it is better to completely remove it from the garden. In the fight against downy mildew, Bordeaux mixture is used. Experienced gardeners recommend spraying with copper chloride.

The fungus occurs due to stagnant moisture and dampness in the soil. Often the infection spreads in prolonged rainy weather. To avoid infection, gardeners feed vegetables in the beds, it is also desirable to feed zucchini if the leaves are already turning yellow. To do this, you need to use nitrogen and potassium fertilizers.Well strengthens the immune system of the plant copper, iron and phosphorus.

It is better to say goodbye to leaves that have turned yellow from various viruses or fungi. They are removed from the bushes and burned. It is unacceptable to use infected greens for compost. You can't leave her on the lot.

Processing of plants should be carried out immediately after cleaning the bushes. The solution is prepared immediately before use. Spraying is carried out in the morning, calm weather. If preventive treatments are not carried out, diseases begin to develop: powdery mildew, downy mildew or chlorosis.

Powdery mildew appears in zucchini often, seedlings suffer first. Weak shoots cannot resist various infections. Therefore, young plants are kept in a separate room.

If they grow in the same greenhouse with adult bushes, then you need to process all the plants at the same time. Copper sulfate is well suited for both preventive measures and fungus control.

Why are zucchini bitter?

Vegetable has excellent taste. It has enough sweetness, spice and juiciness. Ripe zucchini has a characteristic aroma. It vaguely resembles the smell of melon, cucumber or watermelon.

It also happens that the taste of fruits can deteriorate, in particular, bitterness appears. It is worth addressing this problem immediately, recommendations for care are the main means in correcting the situation.

Incorrect watering affects the distortion of the taste of the fruit. Lack of moisture in the soil and prolonged drought lead to a bitter taste in zucchini. You need to water the beds regularly, but at the same time make sure that the water does not stagnate in the holes.

Lack of nutrients as a result can cause the taste of the fruit to deteriorate. The vegetable crop needs regular fertilization with nitrogen preparations and complex products intended for melon, watermelon and cucumbers.

When growing a popular vegetable, it is important to properly care for the plant. Proper watering and fertilizing have a big impact on the taste and quality of the future harvest.

Methods of dealing with yellowness

It is important to initially determine the main cause of the problem and only then choose the appropriate way to deal with it.

The appearance of yellowness in the seedling stage can be caused by a lack of sunlight or poor soil. An experienced gardener effectively fights this stage, it is necessary to deal with this by eliminating the factors leading to the problem: seedlings are removed from a dark place, but direct sunlight is not allowed. The soil is fed once a week with mineral fertilizers. Before planting seedlings on the beds, the soil is well fertilized with organic matter, so you need to add humus to the hole.

You can also use folk remedies: yellowness is prevented by spraying young seedlings with milk and iodine.

A plant at any stage of its growth needs top dressing. Zucchini respond well to nitrogen, copper, potassium and phosphorus.

Prevention measures

It is best to prevent the appearance of yellowness and dryness of greens. Preventive measures will help prevent this phenomenon.

Nutritious soil and fertilizers have different effects on the growth of vegetable crops. It is necessary to correctly select mineral fertilizers. It is best to immediately purchase a complex preparation that is well suited for seedlings and adult bushes.

Top dressing of shoots should be carried out at least 1 time per week. At the stage of active growth and formation of the root system, it is best to use nitrogen and potassium preparations.

Advice from an experienced gardener

Experienced gardeners give the following tips for growing zucchini:

It is important to water the plant on time.
Don't use cold water for irrigation.
The ground is being prepared before planting. To do this, manure is applied to the garden in the soil, organic fertilizers have a positive effect on the quality of the fruits.

Zucchini culture is delicate and requires proper agricultural practices. If you do everything competently and professionally, you can harvest a fairly rich harvest. One bush of zucchini gives more than 10 kg of fruits over the summer.

Common causes of leaf damage on zucchini are improper care, depleted soil in the beds, the occurrence of fungi or harmful insects, as well as improper feeding with minerals.To correct the current situation, it is recommended to establish the root cause. The plant will stop suffering and its leaves will turn yellow.