Chayote leaf spot is very common, how can it be prevented?

You can spray some pesticides to prevent leaf class disease at ordinary times, so that you can prevent the appearance of leaf class disease very well.

In the event of such a plant disease, you can only choose to spray some chemical pesticides to prevent it, which is indeed a very effective fruit.

When choosing chayote varieties, try to choose some high-quality varieties to avoid the breeding of leaf spot.

1. Chayote's requirements for the growing environment.

1. Soil resources.

Chayote does not have too strict requirements for the soil and is highly adaptable. Of course, the fertility of the soil is directly proportional to the planting effect. Deep, soft, fertile soil maximizes yields.

2. Temperature conditions.

Chayote's habits are mild. Avoid excessive heat and cold. Chayote generally has different temperatures at different stages of growth.

The suitable temperature for seed germination is 18-25, the suitable temperature for seedling development is 20-30, and the suitable temperature for seed melon storage is 6-10. When the temperature is too high (30), its growth is inhibited; If the temperature is too low (5), it will also freeze to death due to overcooling. It can be seen that chayote has very high temperature requirements.

3. Sunshine conditions.

Chayote is a short-day plant. Excessive sunshine will cause flower buds to be undifferentiated, which will affect the seed setting rate. Based on this, chayote is suitable for dense planting.

Second, chayote pest control methods:

1. Strengthen fertilizer and water management, cultivate strong seedlings, and improve disease resistance. Loosen the soil in time, pay attention to the matching of water and fertilizer in each growth period, spray high-tech lipid film, maintain soil moisture and fertilizer efficiency, prevent water loss, and ensure a good environment and conditions for long-term growth of plants.

2. Strengthen the pedicle and fruit to increase the yield. Spraying "Zhuang Gua Diling" before flowering, young fruit stage and fruit expansion stage can thicken the melon stem, strengthen nutrient transportation, coordinate nutrient balance, promote the rapid development of the melon body, and make the melon body beautiful, juicy and delicious.

3. Timely prevention and combination of prevention and treatment. Combined with the production season and weather changes, timely medication, the application of high-tech lipid film, improve work efficiency, prevent the invasion of pests and diseases, and effectively kill pests and diseases.

4. The planting density of chayote must be controlled, and the characteristics of ventilation and lighting must be considered. Maintain good ventilation and set up drainage facilities. Do not allow the humidity in the bergamot fields to be too high, which will lead to the appearance of white powdery walls.

Pay attention to ventilation and heat dissipation during planting. In the rainy season, it is necessary to strengthen the construction of drainage facilities to ensure that there is no water accumulation in the fields and cut off the source of anthrax.

When planting chayote, spray pesticides in the soil of chayote, and then spray pesticides on time according to the growth cycle of chayote, so that pests can be prevented.

When planting chayote, you should choose some soil with good air permeability and water absorption, and after planting, you can lay a layer of plastic film, you can water more, turn the soil regularly, and regularly play some pesticides, which can prevent and control pests and diseases.

Prepare in advance, choose the right varieties for planting, pay attention to the amount of watering, pay attention to the use of chemical fertilizers, weeding on time, and spraying pesticides.

When planting, we must choose the soil is more fertile and broad land, and we must use farmhouse fertilizer when fertilizing, do not use fertilizer bought outside, and often water the plants, but also prevent the occurrence of pests and diseases, if there is a situation of small insects, then we must spray insecticides in time, I think if you can do a good job in these aspects, you will be able to prevent and control pests and diseases.

Why does the planted chayote have leaf spot? How do I deal with it?

Bergamot grandmelon (leaf spotted mold) leaf spot disease is a common fungal disease in the period of chayote mold chain planting. The harmful fungus is Punctum round-leaved, which belongs to the type of fungus of the subphylum Semi-Knowitives. It is mainly manifested by the appearance of round spots on the surface of the leaves, which eventually lead to the shedding of the leaves.

This disease can be prevented and controlled by applying pesticides, etc.

In the early stage of the disease and after rain, 500 times of 50% pumpkin copper fertilizer wet powder, 300 times of 14% bile ammonia cave self-preparation, 600 1000 times of 50% chlorobromoisocyanuric acid humidifier, 20% Kuijundong 1000 1500 times of self-preparation and other agents can be used for prevention. Seeing this, the question arises, how to identify and prevent diseases with bergamot? In the following article, I will share with you the identification and preventive measures of bergamot disease based on my years of cultivation experience.

Powdery mildew is one of the main diseases that affect the healthy growth of Bergamoeae, powdery mildew mainly affects the leaves of Bergamotaceae, from seedlings to plant maturity, and it is possible to get sick during this cycle. In the middle and late stages of the growth of Buddha watermelon, the probability of getting disease is relatively high.

The identification of white powder is relatively simple. Because its main site of onset is on the leaves. Diseased leaves are also easy to spot.

Therefore, the identification process is not difficult. Let us analyze what are the characteristics of the early, middle and late stages of infectious diseases. Friends who grow bergamot can judge whether their bergamot is infected with downy mildew according to the characteristics of early, middle, late and stage 3 of downy mildew.

If there is a similar situation, it should be strengthened** so as not to affect production and economic benefits.

There are two main ways to deal with downy mildew, the first is to strengthen prevention. This method is mainly for bergamot that is not infected with downy mildew. The second is the use of drugs**, which mainly targets plants infected with downy mildew.

Downy mildew prevention measures should mainly strengthen field management. Downy mildew is caused by a fungal infection, so it is transmissible to a certain extent, and it must be blocked during the planting process in order for bergamot to grow healthily.

Chayote can reach 60 70 m2 per plant, so the main meal should be large, the diameter of the pot is suitable for 40 60 cm, 6 parts of potting soil, 2 parts of non-staple food hot compost, 2 parts of sand, supporting production. It is strictly forbidden to give 1 2 kg of rice cake fertilizer or 3 5 kg of rotten chicken manure per pot, kg of bone meal, to fertilizer that is not fully fermented. Because bergamot and seedlings are very sensitive to ammonia and are prone to burns, there are 1 1 trees per pot.

The main meal time is preferable before and after Qingming. It can be placed on the balcony in advance, and after planting, the seedlings can be covered with plastic film, and a small hole can be opened in the gap for ventilation. The soil for planting should be watered in advance, and a small amount of water should be sprinkled after planting, and it is absolutely not possible to water more.

It is necessary to prevent root rot from occurring at high humidity and low temperature.

Because of the high planting density, poor ventilation and light transmission, poor drainage, soil acidity, etc., it is necessary to remove the residual plants and leaves in time, watering reasonably, and spraying in a timely manner.

Leaf spot is a common fungal disease during chayote cultivation. The harmful fungus Umbela xanthera is a fungus of the subphylum Hemiptera. It is mainly manifested by the appearance of round spots on the surface of the leaves, which eventually lead to the shedding of the leaves.

The application of fully decomposed organic fertilizer, the use of formula fertilization technology, the application of 400 ml of Manfeng multi-compound liquid fertilizer per 667 square meters, dilution of 500 times water, foliar spray can enhance disease resistance.

Leaf spot disease is a condition in which the leaves are infected with the disease at first, forming small water-stained spots on the leaf surface, and then expanding into nearly round to irregularly shaped lesions. Increase the application of fully decomposed organic fertilizer, adopt formula fertilization technology, use Huimanfeng multi-element compound liquid fertilizer, dilute and spray the foliar surface with water, which can enhance disease resistance. Irrigation is controlled in a timely and appropriate amount of watering, drainage is timely after rain, and the lower leaves are removed if necessary to increase permeability.

Chayote leaf spot disease is a common fungal disease during the cultivation of chayote. The harmful fungus is Pontidophyllum orthodophylla, which belongs to the type of fungus of the subphylum Semi-Knowitives. It is mainly manifested by the appearance of round spots on the surface of the leaves, which eventually lead to the shedding of the leaves.

1) Implement crop rotation for more than 2 years, and mulching can reduce the initial infection.

2) Increase the application of fully decomposed organic fertilizer, adopt formula fertilization technology, apply 400 ml of Manfeng multi-element compound liquid fertilizer per 667 square meters, and spray the foliar surface with 500 times dilution of water, which can enhance disease resistance.

Chayote planting technology and cultivation management:

1. Germination and sowing.

After the preliminary preparations are completed, the first step is to carry out the work of germination and sowing. Wrap the mature seeds in plastic sheeting, put them in an environment of 15-20 to germinate, and wait for 5-7 days after the top bud is ready for sowing. In addition, it is necessary to carry out appropriate watering after the emergence of seedlings to maintain the moisture of the cultivation soil.

2. Colonization management.

Chayote is not hardy and is susceptible to freezing, so it should be planted after frost breaking. Before the fixed value, it is necessary to plough the soil to maintain the fertility of the soil, and mix the rotted farmhouse manure and soil evenly into the Dingsong closed planting pit, and then plant the melon seedlings in the treated land and water them appropriately, and a small amount of nitrogen fertilizer can be applied to promote the growth of seedlings.

3. Erecting a frame. Chayote is a climbing plant crack, so after the chayote vine is extracted, a rectangular trellis should be built to attract the vines to the shelf. In addition, the main vine also needs to be plucked in time after it is put on the shelf, which is conducive to the growth of chayote seed vine and grandchild vine.

The last point to pay attention to is to observe the growth of melon seedlings and carry out proper pruning work.

4. Fertilizer and water management.

Chayote likes fertilizer, and fertilizer should be applied at least three times, respectively after the vine is put on the shelf, the flowering and sitting melon period and the full melon stage.

5. Harvesting. When the harvest time comes, it can be picked directly on the vine, and chayote is generally a natural green vegetable with fewer diseases. Generally, it can be harvested and eaten about 15 days after the female flowers are pollinated and eaten.

The reason why chayote grows vines and does not bear fruit may be due to unsuitable soil. The soil in which chayote is grown requires loose, well-drained, and nutritious. In addition, it may also be because the melon vine is not pruned regularly during the growth period, and the melon vine will absorb the nutrients from the chayote root system, which can affect the fruit.

Lack of nutrients and overwatering are also common causes of chayote not bearing fruit.

The soil is not comfortable. When bergamot melons only grow vines and do not bear fruit, it may be caused by unsuitable soil. Cultivating chayote requires deep soil, which is rich in a lot of nutrients, otherwise it will affect the normal growth of chayote.

In addition, it is required that the soil is loose and well drained to avoid the phenomenon of soil ponding.

Improper pruning. Let's continue to dive into the topic of this issue.

Chayote only grows vines and does not bear fruit, which can also be caused by improper pruning. Chayote is a fast-growing plant, and its foliage tends to appear thick. If chayote grows without pruning the tree, a large amount of the nutrients absorbed by its roots will be consumed by the tree.

At this time, there will be no fruit, only melon trees.

Nutritional deficiencies. In addition, chayote's failure to bear fruit can also be due to nutritional deficiencies. Chayote has a high demand for nutrients before and after fruiting.

It is recommended to apply rotted superphosphate and organic fertilizer during the fruit setting period of chayote, otherwise chayote plants cannot grow normally due to poor nutrition and wide forefeet.

Overwatering. Overwatering is also a common reason why chayote doesn't bear fruit. If chayote is overwatered, it is easy to produce soil waterlogging, and the root system of chayote will be eroded due to water accumulation, and the root system of chayote will not absorb nutrients and water normally.

At this time, it will lead to the result of insufficient nutrients and water.

Through our introduction, I believe that you have a deeper understanding of why chayote only grows vines and does not bear fruit.

The disease is a physiological disease caused by high temperatures. The high temperature in the shed, at noon under the strong light, the wind is not released in time, which is easy to cause leaf burn. In addition, the pruning near the ground of the shed should be as short as possible, so that the melon leaves are not close to the shed film.

At the beginning of the disease, the chlorophyll of the diseased part is significantly reduced, and small white patches appear on the leaf surface, which are polygonal or irregular, and appear white to yellow-white patches after enlargement.

<> melons are harvested and do not stop physiological activities, you can use a basket or cardboard box containing bananas, oranges, and apples, put newspaper around it, gently put the melons, and then put them indoors at a natural temperature to let them ripen later. Do not cover the basket with objectsChayote is a vegetable that uses whole melons as sowing material, and it is a vegetable that truly "grows melons and gets melons". Generally, the live broadcast method is adopted.

In colder areas, spring sowing can be done in a simple protected area, i.e. early seedling cultivation in a hotbed or greenhouse, where the cut fruit is peeled in the seedbed, covered with soil, and germinated in a sunny place. Seedlings are usually sown in mid to late April, and transplanted seedlings can be sown in the conservation facility about a month in advance.

In the south, sowing is generally done in February-April; In the Yangtze River basin, sowing is from early March to late April; In the northern region, seedlings are transplanted directly from early to mid-April to early to mid-May, and seedlings are raised in greenhouses beforehand. In the cultivation of chayote, it is also necessary to pay attention to top dressing, nitrogen fertilizer during the growth period, foliar fertilizer should be added during flowering, and of course, boron fertilizer should be used when the fruit grows, so that it can grow better.

Chayote is both barren and fertilizer-tolerant, and the female flower differentiation is dominated by side vines, with a wide range of branches, and if you want to have a high yield, you must supply rich nutrients for a long time. About a month before sowing, the sowing place should be selected, dig a deep melon pit, the pit is 50 cm deep chayote pests are very few, generally do not need to spray, chayote flowering and fruiting are more concentrated, and have a greater impact on the growth of stems and vines. To pick in time, it is conducive to the growth and development of the stubble melon, chayote is generally ripe in about 25 days after flowering.