There are many passion fruit yellow mosaic virus diseases in autumn, how should we solve them?

Passion fruit is very prone to mottled leaves and loss of green in autumn, senescence of buds, no tender shoots, no new shoots, and slender and deformed leaves, that is, passion fruit is infected with yellow mosaic virus disease.

After passion fruit was infected with yellow mosaic virus disease, the flower bones were deformed, the fruit hanging was reduced, and even did not bloom, did not bear fruit, and the production quantity and quality were significantly reduced. Therefore, in autumn, attention should be paid to the prevention of passion fruit yellow mosaic virus disease.

In autumn, pay attention to the observation of passion fruit plants, and find that passion fruit plants have bud eye aging, leaves are afraid of green and lose green, and when the new shoots are rolled and slender and deformed, it is necessary to spray the leaves with 600 times the sugar content of fungus egg whites, 800 times occultamine formate, 1500 times pure natural brassin, sodium dihydrogen phosphate, 1500 times 10% thiamethoxam solution to carry out prevention, spray the leaves every 7 10 days, continue to spray 2 3 times, evenly water all the leaf stems, and gradually have water mist to flow downward.

In case of precipitation within four hours after spraying, it should be sprayed again to improve the prevention effect. In this way, it can weaken the vitality of the virus infection, inhibit the reproduction of the virus, kill the virus and the insect pests that spread the virus (the virus of passion fruit yellow mosaic virus disease is spread according to the pests such as cotton aphid, whitefly, whitefly), etc.), so that the diseased plants can recover and grow and develop and avoid the spread of the virus from harming other physical and mental health plants, and can also improve the ability of plants to resist viral drugs and alleviate the onset of diseases.

Passion fruit seedlings are generally divided into cuttings and detoxified grafting, and cuttings are very cheap. Unfortunately, the vast majority of unhealthy Trojan viruses are very susceptible to brown spot disease during the rainy season. Unlike other fruit trees, passion fruit cultivation pays great attention to the physical health of the seedlings.

Since the drug cannot control the problem of passion fruit virus infection, once the virus infection is susceptible, there is no choice but to pull it out.

Passion fruit detoxification grafting is more resistant to disease and more abundant than cuttings. Passion fruit detoxification grafting is solved according to detoxification, and the disease resistance is stronger, and the grafting method of root rot resistant and yield-increasing species is adopted. Both disease resistance and root rot resistance are mainly stronger.

In summer, it rains a lot, and the seedlings of cuttings are very easy to rot the rhizomes, and the plants hang up, so we talk about the production volume. Selecting good seedlings is the first step to successful passion fruit planting, and only high-quality seedlings can be successful with a good process.

Autumn passion fruit yellow mosaic virus disease is frequent, we want to solve the problem of passion fruit tree disease, the best way is to use our first disease of the potion, spray the leaf surface of the passion fruit tree, if the rainy season, then after the rain, there is another spray.

In such a situation, we must spray pesticides in time, and then we should also prescribe the right medicine, do not overdose, but also need timely watering and fertilization, ensure sufficient light, do a good job of drainage and ventilation, and also need to prune the residual branches and rotten leaves to avoid rotting.

We can spray some drugs to control pests and diseases, pay attention to soil drainage, and carry out proper topdressing, which can solve this problem.

Mosaic disease control technology:

1. Agricultural prevention and control. Establish disease-free farmland, strengthen field management, ensure fertilizer and water, try to avoid high temperature and drought, promote plant growth and robustness, and reduce the incidence of disease.

2. Control aphids. Try to avoid the harm of aphids during the growth room, and use drugs to prevent and control aphids in time. Commonly used agents are 40% dimethoate EC 1000 times, or 10% imidacloprid wettable powder 2000 times, or 20% pyrethrin EC 8000 times liquid spray.

3. Passivation of the virus. In the early stage of the disease, it can be sprayed with 600 times of Gaoke 2% amino-oligosaccharides, 150 grams of 20% virus A per mu with 60 kg of water, or 800 times of phytochloride, or 300 times of antiviral agent No. 1, etc., and sprayed 3 times during the whole growth period to reduce the harm.

4. Strengthen nutritional regulation. During the period of medication, antiviral plant growth regulator zinc plus selenium, zinc treasure, zinc fertilizer and other nutrients are sprayed.

Passion fruit disease and insect control: the main diseases of passion fruit are cataplexy, mosaic disease, blight, stem base rot, which can be controlled with Bordeaux liquid or Rui poison mold, anti-blight 1000 times solution, and 75% chlorothalonil 800 times solution. The main insect pests are small fruit flies, mites, scale insects, etc., which can be sprayed with 90% trichlorfon 800 times, Nongdile 1000 times, Lesben 800 times, and avermectin 5000 times.

You can try the fruit tree virus special.

After three rounds of medicine, it was cured, and it is possible that there is that medicine available nearby.

Hello, passion fruit is caused by rhizome problems, there are two rhizome problems, seedlings come with germs, one is land germs, a lot of you can go to Nanning, Guangxi Taibo agricultural technology.

The phenomenon of falling flowers and fruits often appears in the holy Maiden copying fruits, shadows.

Strike early maturity and yield. The main reasons are: first, cloudy and rainy days, insufficient light; The second is improper cultivation management.

In addition, the seedlings are too long during planting, the plant injury is too severe, the watering is uneven, the soil is dry and wet, the water imbalance during the flowering period, the formation of separation at the flower stalk, and the lack of water and fertilizer will cause malnutrition and flower drop. The soil is not fertilized in moderation, more or less. The following measures should be taken to prevent flower and fruit fall: first, comprehensive agricultural control measures, such as cultivating strong seedlings, planting in a timely manner, and avoiding low temperatures; Prune and prune in time to prevent the plant from growing; Timely topdressing and watering to prevent pests and diseases and mechanical damage.

The second is the application of plant growth regulators, commonly used tomato, 2,4-d. The appropriate concentration of tomato is 25 50 micrograms, and 2,4-d is 15 20 micrograms, which should be applied to the flower peduncle separation or the stigma of the flower at the flowering stage.

Let's go dry! The water is pouring too much...

Passion fruit does not grow luxuriantly and has yellow leaves, and here's why.

Judging from the situation in the figure, it is excluded that it is normal physiological yellow leaves, and the current one should be caused by the lack of yellow leaves or the stunted growth of the root system, and the plant leaves grow poorly!

Therefore, top dressing should be done immediately to promote plant growth, and pests and diseases should be prevented and controlled in time if they are found.

The effect of top dressing on plant growth has two sides, and it is beneficial to plant growth if it is used well; On the contrary, there will be cups that promote growth but lead to fattening! In winter, top dressing is very cautious, in addition to looking at the temperature, but also to see its state, whether it is in the period of need for fertilizer; How to do it is necessary to pay attention to the conditions.

Recently, the passion fruit mosaic virus has finally recovered and been cured three times, do you want to know how to cure it?

A: I don't want to know because I'm also a passion fruit grower, and I'm kind of experienced, so I don't need to know about it.

The way to prevent this from happening is to take precautions in advance.

When passion fruit has mosaic disease, the leaves will appear pale yellow mottled, the fruit will shrunk, and the hardening will be deformed. This is mainly due to the spread of passion fruit seedlings or through grafting with diseased branches and aphids, which can be controlled by spraying some fungicides on the foliar surface of passion fruit and a 500-fold liquid mixture of new high-fat film. In the process of passion fruit growth, the harm of aphids should be avoided as much as possible, and aphids should be treated in time for prevention and control.

Passion fruit mosaic disease symptoms.

Passion fruit mosaic disease is mainly transmitted by passion fruit seedlings or through grafting with diseased branches and aphids, and the disease is more common in the cold and dry season.

Mosaic disease symptoms: When passion fruit has mosaic disease, the leaves are pale yellow mottled, the whole plant grows poorly, the fruit shrinks, hardens and deformed, and the flesh is little or nothing.

Passion fruit mosaic disease hazards.

Passion fruit mosaic disease is a viral disease that mainly harms leaves and fruits, resulting in poor growth of the whole plant, hard and deformed fruits, and reduced seed setting rate.

Causes of passion fruit mosaic disease.

The cause of passion fruit mosaic disease is mainly caused by the original disease of passion fruit seedlings or the spread of diseased branches and aphids by grafting, so it is found in time and carried out in time to prepare for subsequent flowering and fruiting.

What medicine is used for passion fruit mosaic disease.

Passion fruit mosaic disease can be prevented and controlled by spraying fungicide + 500 times liquid mixture of new high-lipid film on the foliar surface of passion fruit. If the condition is more severe, or if it does not improve, spray again every other week. At the same time as foliar spraying, the amount of nitrogen fertilizer was controlled, and the amount of organic fertilizer and phosphorus fertilizer was increased.

Passion fruit mosaic disease control method, mosaic disease treatment method.

1. Passion fruit can be selected for vegetative propagation by healthy mother plants to maintain the characteristics and traits of the original variety, or disease-free seedlings can be selected for cultivation;

2. Expand the area of virus-free orchards, strengthen orchard management, ensure that the orchard temperature is appropriate, and reduce the case fatality rate;

3. Pest control: reduce the occurrence of viruses, and cut off the source plants with mild symptoms to avoid infecting other healthy plants; Strengthen the nutritional regulation of plants, and during the planting of passion fruit, zinc and selenium nutrients can be used to regulate the growth of passion fruit.

Mosaic disease precautions.

1. Agricultural prevention and control: passion fruit establishes disease-free farmland, strengthens field management, ensures fertilizer and water, avoids high temperature and drought, and reduces the harm of diseases and pests;

2. Prevention and control of aphids: passion fruit should be monitored as much as possible during the growth process to avoid the harm of aphids, and aphids should be used for prevention and control in time;

3. Passivation virus: passion fruit can be prevented and treated with pesticides in the early stage of the disease;

4. Strengthen nutritional conditioning: Passion fruit is supplemented with antiviral plant growth regulators zinc, selenium, zinc treasure, zinc fertilizer and other nutrients during the use of passion fruit.

Passion fruit is very delicious, and then we will talk about the best method of passion fruit mosaic disease.

01 To ** passion fruit mosaic disease, we need to prepare the following materials: watering cans, insect repellent, water, scissors, scissors, organic fertilizer, etc.

02 Passion fruit suffering from mosaic disease may generally be caused by insufficient nutrients of the passion fruit plant before planting, so we should strengthen the organic fertilizer.

03 We can also find leaves with passion fruit mosaic disease and cut them off with scissors, so that we can reduce the transmission of diseased mosaic leaves to healthy leaves.

04 We can also add water and insect repellent to the watering can and mix it well, and then spray the solution prepared by the side pants on the leaves with mosaic disease.