Why zucchini turn yellow in the garden: reasons and what to do

After the seeds have successfully sprouted, you do not want to lose the harvest. Why zucchini leaves turn yellow, beginners and experienced vegetable growers are trying to understand. What is the reason for this phenomenon, how to help the culture and save the plants.

Why do zucchini turn yellow?

There may be several reasons, first of all, you should determine exactly why the leaves turned yellow. And then work to eliminate them. To do this, carefully examine the zucchini in the garden, when the slightest sign of yellowing appears, processing begins. But it is better to carry out preventive work in time to prevent the crop from being destroyed.

Outdoor

One of the reasons for the yellowing of the leaves is the wrong arrangement of plantings. Culture loves well-lit areas, but not more than 4-5 hours a day. With longer exposure to sunlight, the leaves are damaged and begin to turn yellow. Summer residents recommend carefully choosing a place for beds or planting corn nearby, it will close the plants from the scorching sun.

Another reason is powdery mildew, which affects not only an adult plant, but also seedlings of zucchini. A lack of nitrogen also affects the fact that the bushes begin to turn yellow. The tips of the leaves suffer, then the entire leaf plate dries up.

When the temperature drops, the leaves also turn yellow. In order to avoid this, crops should not be planted until June.

In the greenhouse

Zucchini turn yellow not only in open ground, but also indoors.The reasons are the same. Sometimes this happens due to the fact that the plantings are thickened. This happens due to lack of light. The spider mite, attacking the beds with zucchini, slowly destroys the plant. The leaves begin to turn yellow in spots, then completely dry out.

Don't be afraid if the leaves turn yellow at the end of the growing season. This is the natural aging process of plants. There is nothing wrong with that.

Irrigation pattern violation

Often, zucchini turn yellow due to the fact that proper watering is not carried out. Compliance with certain requirements will help to avoid many problems.

1. Water should only be in the morning and evening, the water should be warm and settled.
2. The number of waterings is less than that of cucumbers, but more abundant. It is enough to water once a week, the soil should get wet 30-40 cm deep.
3. Carry out drip irrigation, but in its absence, water strictly under the root. Avoid getting moisture on the leaves. Mulch is encouraged.

Proper watering will help preserve plants and increase yields. Don't break the rules.

What to do if the seedlings turn yellow?

First of all, the tips of the leaves begin to turn yellow. It is possible to save seedlings at this moment. It is enough to feed the plants with nitrogen-containing fertilizers. But if all the leaves dry, then it is best to plant new seeds.

The soil is prepared in advance, treated with a solution of manganese. Seedlings should not dry out. By implementing these rules, yellowing is prevented.

Why did the fruits turn yellow?

Another concern of summer residents is that the zucchini themselves turn yellow on the bush. The reason for this is excess moisture. You should carefully monitor the condition of the plants after watering.

Excess moisture stops the development and fruiting of the plant.

If you do not harvest the zucchini in a timely manner, they begin to turn yellow. This is because the fruits are overripe, the skin is coarsening, and the taste is deteriorating. In addition, timely harvested zucchini allows the plant to form new ovaries.

Powdery mildew attack

When plants are affected by this disease, treatment is required immediately. Since a diseased plant will soon infect the entire area. If the leaves deteriorate, this is a signal for immediate action.

First of all, virus-affected areas of the bush are immediately removed. And treat the rest of the plant with special preparations to treat the disease. If the vegetable grower wants to do without the use of chemistry, folk methods of struggle are used. Infusions of garlic, onion, celandine, and others.

But any disease is better to prevent than cure. Therefore, summer residents recommend pre-treatment of plants in order to avoid infection and the spread of the disease. In addition, carry out common agricultural practices, loosening, weeding, and fertilizing.

Fight against spider mites

Plus is that the pest can be detected immediately. Then treat the plants immediately. A cobweb appears on the leaves, which is easy to notice, just turn the sheet upside down.

Insect control is carried out in 2 ways, chemical and folk. The first method is more effective, the second is safer.

Processing:

• A solution of wood ash with soap. 1 kg of ash, 10 liters of water, 200 g of grated soap. Spray every other day, until the pest disappears.
• Potato tops. The infusion is prepared only from he althy tops. Chopped stems are poured with water, insist 7 days. Spray the bushes every day until the insect disappears.
• Garlic, chamomile and wood ash. 4 heads of garlic, 1 kg of ash, 10 liters of chamomile decoction. Insist a week. Process 3 times. To prepare a decoction of chamomile, you will need 200 g of dried flowers.

Traditional remedies are preferred as chemicals do not remain in plant fruits.

What to feed for prevention?

First of all, fill the lack of nitrogen and feed the plants with organic matter. Then treat from insect pests. Water the plants with infusions of onion peel and garlic.

Recommended watering with the following substances:

• urea;
• boric acid;
• blue vitriol.

Process 1-2 times, before the formation of ovaries, the interval between top dressing is 1-2 weeks.

The culture is not bad for organic matter, therefore, when planting plants, it is fertilized with humus. Adding it to the wells saturates with useful substances.

Zucchini is undemanding in care and unpretentious. They are widely used in cooking. The summer resident will not lose if he decides to grow a crop on his site. It is enough to carry out simple care techniques and the harvest will not be long in coming.

Recommended