Why did the pears rot on the tree?

Common sense of fruit storage If the fruit you buy is ripe, as long as you put it in a cool place that is ventilated and not exposed to sunlight, you can also put it in a bamboo basket or fruit bowl, so that the natural and fresh fruit aroma can add a bit of charming taste to your home. Generally speaking, the suitable storage temperature for fruits is between 7 and 13 degrees Celsius, and some fruits require a lower temperature, such as apples, grapes, peaches, plums, persimmons, etc., and the refrigerator room is a good place to store them. Fruits that are refrigerated in the refrigerator can be left unwashed, as long as they are packed in plastic bags or paper bags to prevent the water of the fruits from evapoling.

You can make a few small holes in the plastic bag to keep it breathable, so as to avoid the accumulation of moisture and cause fruit spoilage. Not every fruit is suitable for keeping it fresh in the refrigerator. Some fruits are naturally afraid of cold, such as some bananas, mangoes, papayas, etc., which are native to the tropics, but putting them in the refrigerator will cause spots on the peel or turn dark brown, and the quality and flavor of the fruit will also be damaged.

1.Basically, the fruit should be freshly cut and eaten, if you buy a fruit that is not yet ripe, it should be placed at room temperature until it is ripe enough, and then put it in the refrigerator to keep it fresh. 2.

Crusty fruits, such as watermelon, pineapple, cantaloupe and other fruits, it is recommended to put them directly in the refrigerator; Thin-skinned and soft-skinned fruits such as apples, pears, and mangoes, put them in plastic bags before putting them in the refrigerator; If you freeze in the refrigerator for a long time, the shell will be dry and hard, and the flavor of the pulp will be affected, so it is recommended to spray a little water on the fruit before putting it in a plastic bag, and then put it in the refrigerator to maintain the fresh taste of the pulp.

Because it was not taken off in time.

Summary. Mainly due to the wet and cold conditions in winter, the fungus multiplies and grows on the flower buds of pear trees, resulting in bud tissue decay, which affects the normal growth and fruit yield of pear trees. Symptoms include flower buds turning black, smelly, rotten, or even turning into a gray or white powder.

**Methods include removing diseased parts, spraying fungicides, etc., while paying attention to the management and protection of pear trees to avoid the occurrence of diseases.

Hello, pear bud rot is a disease caused by bacterial infestation, and the main hall is caused by the early flower bud and young branches of the pear tree. Common pathogens include Botrytis cinerea, Anthracnose, etc. If it is not controlled in time, it will affect the normal growth and fruit yield of pear trees.

Preventive measures include strengthening the fertilizer and water management of pear trees, removing wilted parts from branches in a timely manner, and using suitable fungicides.

Mainly due to the wet and cold conditions in winter, the fungus reproduces and grows on the flower buds of pear trees, resulting in the decay of bud tissues, which affects the normal growth and fruit yield of pear trees. Symptoms include flower buds turning black, smelly, rotten, or even turning into a gray or white powder. **The method of brightening and boring pin includes removing the diseased part, spraying fungicides, etc., while paying attention to the management and protection of pear trees to avoid the occurrence of diseases.

In this case, it is generally because the content in the soil is not enough, or because of too little watering, so you should replace the soil, choose some soil with higher nutrient content, and you also need to water more to alleviate it.

I suggest improving the nutrition of the tree and enhancing the strength of the tree; Strengthen pruning to create a ventilated tree shape; Reasonable water control and the pursuit of water balance; Regulate the structure of chemical pesticide use.

Spraying Bordeaux liquid to prevent and control diseases during the fruit expansion period of pear trees can prevent rain erosion, and supplement copper and calcium elements for pear leaves, so that pear trees grow vigorously, and the leaves are thick green and black, reducing early defoliation. When the pear tree enters the fruit expansion stage and flower bud differentiation stage, it needs to have sufficient nutrient supply. Before and after the wheat harvest, the precipitation is low, the temperature is high, and the weather is dry, which seriously affects the moisture of the tree**.

At this time, it is necessary to strengthen water and fertilizer management in time. First, it is necessary to apply potassium sulfate type high nitrogen, medium phosphorus and high potassium three-element compound fertilizer in time, and water appropriately after topdressing

1. Nutritional deficiencies. If there is too much fruit in the previous year, the leaves fall during the fruit period, and the basal fertilizer is not applied in autumn, the tree is weakened, and the tree body stores nutrients insufficiently, resulting in the obstruction of flower bud differentiation, poor flower bud quality, and the phenomenon of flower abortion or reduced vitality such as low pollen quantity, low germination rate, and slow pollen tube elongation speed, so that the pear tree can not be pollinated and fertilized normally and cause fruit drop.

Second, the growth is too vigorous. If the previous year's fruit is too much, nitrogen fertilizer application is too much, pruning is too heavy, etc., the branches and leaves are vigorous, and the fertilizer and water consumption is too much, resulting in the relative lack of nutrients in young fruits and causing fruit drop.

3. Pest and disease hazards. Pests and diseases can directly damage pear tree buds (e.g. apple scarab) and fruits (e.g. mealworms), resulting in flower and fruit drop. It can also harm the leaves (such as pear psyllids) and trunks (such as dry rot, etc.) to make the tree decline, and the fruit trees lose their leaves during the fruit period, thereby affecting the manufacture and accumulation of nutrients, so that the fruits fall off because they do not get enough nutrients.

Fourth, drug damage. The flowers and young fruits of the pear tree are extremely sensitive to pesticides, if the pesticide type is improper, the concentration is excessive, and the pressure is too large when spraying, it is easy to damage the flower organs and young fruits and cause flower and fruit drop.

The content is as follows: The cause of rotten pears is mainly caused by insect diseases.

Specific ways to prevent pear rotting:

1. Pest control is not.

Take it lightly. Pear trees generally bloom around the Qingming Festival, and pears are picked around the autumn equinox. Post-flower management should not be careless. First of all, the anti-freezing and pollination are careful or perfunctory, which is the key to whether or not they can hang the fruit.

Key. Fruit thinning bagging can be selected according to the actual situation, top dressing and watering energy force, insect prevention and treatment can not be up to you, whether you can keep the fruit, all depends on management measures.

2. Seize the opportunity. Pear tree diseases are divided into dozens of four categories: roots, branches, leaves, and fruits. Root branch damage, although it can make the branch tree die, but it is a branch and a tree, or a piece, see the disease and cure the disease, most of them can be cured, but when scraping to cure the rot disease, if the scraped off the diseased skin is not taken out of the garden for treatment, the rot fungus will become more and more rampant.

The disease of buds and leaves, the disease is often the first to drop the leaves, and then the fruits, even if the disease is controlled, the fruits are not neat, there are many small pears, and there is no commercial value. If the fruit is sick, no one can cure it.

Good. Because the incubation period of the disease has no obvious characteristics, once a small black spot is found, it will be cleared immediately to reduce the source of infection. In particular, the scab fungus can be followed into the cellar, and it must be prevented many times, and it must not be treated again.

3. Prevention. To deal with pear tree diseases, in general, it should be comprehensive prevention and control, thinning branches, row spacing should be ventilated and transparent, basic application of farmhouse organic fertilizer, and top multi-compound fertilizer. The aim is to strengthen the tree and increase disease resistance. Against.

Branches, leaves, and fruits are sprayed with fungicides in stages. Especially in the first two days of bagging and pearing, be sure to spray with a mixture of protective fungicides and insecticides, and several pesticides can be used cross-use during insect control at other times.

4. Thorough disease. The insects on the branches can't bite the tree for a while, and they can be cured, and the pests on the buds and leaves are easy to find and treat. Only the insects on the fruit are the most harmful, and the insects cannot be treated again, the key is prevention. Once there are insects, it is not a reduction in production, but a complete harvest.