What are the main diseases of fruit mulberry? Pest and disease control of mulberry trees

1.There are three types of mulberry atrophy disease: yellowing, atrophication and mosaic. Yellowing type is more common.

1）**。The disease is a contagious disease caused by infection by bacterioplasmid viruses.

2) Symptoms and pathogenesis. At the beginning of the disease, a small number of young leaves of the branches are shrunken, yellow, curled to the opposite side, and axillary buds germinate with the aggravation of the disease, the lateral branches are weak, the leaf shape is thin, and the internodes are shortened, and then gradually develop from a few branches to the whole plant. After summer felling, the severely diseased plants were covered with weak twigs, dense cat-ear-like thin leaves, and gradually died.

Pathogen: The pathogen exists in the sap and can be transmitted through two ways: grafting and insect vector. When the rootstock or scion is poisonous, the grafted plant will be diseased; Insect-borne infections are mainly caused by two vectors: the diamond-striped leafhopper and the quasi-diamond-patterned leafhopper.

3) Prevention and control methods. Strengthening the quarantine of seedlings, strictly preventing the inflow of diseased seedlings, and at the same time, immediately digging up diseased trees to eliminate the source of infection is the most fundamental measure to prevent this disease.

2.Mulberry sclerotinia sclerotinia is the main disease that occurs most frequently in mulberry.

1）**。It is caused by sclerotinia sclerotinia pathogenic fungal infestation with mulberry.

2) Symptoms. The main symptoms are abnormal hypertrophy or atrophy, deformity and shriveling of mulberries, and the formation of dry and hard sclerotia inside the diseased leaves.

3) Pattern of onset. The pathogen overwinters in the soil with sclerotia and spreads by the wind. This disease is prone to occur in the flowering and fruiting period when it encounters unfavorable environmental conditions such as rain or high temperature and humidity. Mulberry orchards with poor ventilation, low-lying stagnant water and insufficient light are more susceptible to the disease.

4) Prevention and control methods. First, it is necessary to strengthen the management of mulberry gardens such as pruning and weeding, and increase the permeability of mulberry gardens; The second is to spray 1000 times carbendazim or methyl tobuzine at the flowering and young fruit stages to prevent disease. In addition, manual removal of diseased mulberries during the onset period had a significant effect on controlling the spread of the disease.

The main diseases of fruit mulberry are: mulberry yellowing type atrophy disease, mulberry atrophy type atrophy disease, mulberry leaf type atrophy disease, mulberry bacterial wilt, mulberry blight, mulberry rough skin disease, mulberry red rust, mulberry brown spot, mulberry powdery mildew, mulberry plaster disease, mulberry purple feather disease, mulberry root knot nematode disease, mulberry broken tip disease, mulberry bud blight, mulberry pseudo-dry blight, mulberry sclerotinia sclerotinia and so on.

The diseases and pests of mulberry fruit trees mainly include sclerotinia sclerotinia sclerotinia sr. sclerotinia sr.

1. Prevention and control of sclerotinia sclerotiorum

Sclerotinia sclerotinia is one of the main diseases of mulberry fruit, which will begin to invade the plant when flowering, causing its fruit to be infected, manifested as white lesions, which may not cause the death of mulberry fruit trees, so it is necessary to use special agents to spray, and cut off the infected branches and flowers on the plant to avoid spreading.

2. Prevention and control of powdery mildew

Powdery mildew is a disease that begins to attack the leaves of mulberry trees, with white lesions on the leaf surface that are round in shape, and then gradually expand to infect the entire leaf, after which the infected leaves will turn black and wither, and it is necessary to increase its light time, and strengthen the control measures for watering and fertilization.

3. Bacterial wilt

Bacterial wilt is also a kind of mulberry fruit tree bacterial infection disease, in the early stage of its disease, the position is very shady, generally from its fine root part of the disease, resulting in the lack of nutrients in the ground part and the death of leaves, need to use a special potion, after dilution for root irrigation, in order to kill the underground germs.

4. Scarab

Scarab is also a common pest, especially in the seedling stage of mulberry fruit is particularly easy to provoke scarab, this pest will eat the leaves of mulberry fruit trees, affect its growth and development, need to use 50% phosphine emulsion 1000 times liquid to kill, and Bi's repeated many times, to ensure that the residual insect limbs and eggs are completely killed.

Pest control: Conventional pest control refers to leaf mulberry orchards. Mulberry should focus on the prevention and control of mulberry sclerotinia (white mulberry), from the beginning of flowering to the full flowering period with 70% methyl tobuzin, 50% carbendazim 500 1 000 times of liquid alternately, the interval of about 7 days continuous spraying more than 3 times, 15 to 20 days before the fruit picking stop spraying.

Ginkgo seeds should be removed in time and buried in other places to prevent the spread of pathogens.

Management of young trees.

In the year of planting, the mulberry is mainly cultivated and the fruit branches are sturdy, and the fruit begins to bear fruit in mid-to-late April and early May of the second year. In the management of young trees, it is necessary to conscientiously grasp the following work:

Watering. In the spring of the year of planting, the mulberry seedlings should be irrigated once after germination, and then irrigated according to the soil moisture. After the irrigation is completed, when all the water seeps down, it should be covered with soil and buried to evaporate with waterproofing.

Fertilize. After the young trees sprout and in June, each seedling is chased separately.

Administer urea 100g or thin human feces urine 5 to 10kg, from mid-July onwards.

After and before defoliation, foliar sprays of "Trim" potassium dihydrogen phosphate 2 3 times.

Reasonable bud thinning. Thinning is generally carried out when the new shoots have grown to about 20 cm. According to the requirements of leaving 1 2 buds per mulberry fist and 10 15 buds per plant, the robust buds should be retained in the appropriate position and the weak excess buds should be thinned.

Watering at the right time. The spring budding period is the peak water demand period for fruit mulberry, and if the weather is dry at this time, it is necessary to water in time.

Management during flowering and fruiting period.

Top application of puff fertilizer. In early April, the flowering and fruiting period is the beginning of spring, and the puffed fruit fertilizer is applied once, and the ternary compound fertilizer of nitrogen, phosphorus and potassium is 15 20kg per 667m2. After that, potassium dihydrogen phosphate was selected for foliar spraying outside the roots, which was good for improving the sugar content and color of mulberry fruits, and the top dressing outside the roots was carried out in the evening.

Enhance ventilation and light transmission. From late April to early May, when the mulberry fruit is about to ripen, the dense mulberry leaves in the middle and lower parts of the mulberry branches should be appropriately removed to strengthen ventilation and light transmission and increase the sugar content of mulberry fruit.

Fruit mulberry pest control technology.

1) Mulberry gall mosquito control.

1. Algebra: Chongqing occurs 4 generations a year.

2. Harm the insect body: the adult worm lays eggs on the mulberry, and after hatching into larvae, it harms the fruit mulberry.

3. Medication period: prevention and treatment should be carried out in mid to late March.

4. Application dosage: dilute 1000 times with 40% pure dimethoate emulsion (Chongqing Jianfeng Pesticide Factory) to prevent and control spring insect pests such as mulberry gall mosquitoes, mulberry weevils, mulberry caterpillars, etc., spray prevention and control from top to bottom, and drip until the water is dropped.

2) Prevention and control of mulberry sclerotinia sclerotinia disease.

1. Types of mulberry sclerotinia disease: hypertrophic sclerotinia (main disease), small granularity sclerotinia sclerotinia and reduced sclerotinia

2. Transmission route of mulberry sclerotinia disease: ascospores are released from the ascomycete disc in the form of (ascomycete mist), which is mainly airborne.

3. Prevention and control methods of sclerotinia sclerotiorum:

1) Prevention and control principle: "prevention first, comprehensive prevention and control".

2) Pay attention to fertilization: reapply basal fertilizer, increase the application of water-soluble fertilizer with special amino acids, phosphorus, potassium and boron fertilizer, and apply nitrogen fertilizer appropriately; Apply sprout fertilizer early to avoid excessive application of nitrogen fertilizer during the flowering stage.

3) Early prevention and control: glyphosate herbicide is used at the end of the second to the third beginning of early spring to kill the sclerotinia sclerotinia unearthed ascomycetes.

4) Medication period: for the first time in the middle and late flowering period of 3 years, 800-1000 times of 70% methyl tobuzin wettable powder was used; The second spray was applied with the above drugs in late March; The third time was sprayed with the above drugs in early April.

5) Spraying method: spray from left to right or from right to left, from top to bottom, with dripping water as appropriate.

6) Other control methods: select and plant disease-resistant varieties; clean up the diseased fruit; ploughing the garden; Bagging (at the beginning of 3 years); control the number of retained sticks; Avoid mixing with cruciferous plants (oilseed rape).

The first time: the first flowering period (when the mulberry flowers first bloom); The second time: full flowering period (mulberry flowers are in full bloom); The third time:

premature stage (mulberry flowers begin to decrease, and the first fruits appear); 2. Counterpart pesticides: 1000 times of 70% methyl tobuzine or 1000 times of 50% carbendazim wettable powder.

The first group of trillions of flowering period (when the mulberry flowers first bloom) collapsed auspicious rent; The second time: full flowering period (mulberry flowers are in full bloom); The third time: the blooming stage (the mulberry flowers begin to decrease, and the first fruits appear); 2. Counterpart pesticides:

1000 times of 70% methyl tobuzine or 1000 times of 50% carbendazim wettable powder.

Can mulberry ginkgo disease still be prevented and treated now?

OK. What kind of medicine is used?

Prevention and control is prevention and prevention.

1. When spraying, the fog point must be fine and thoughtful, and should not be missed. Generally, the dosage per mu is 3 4 backpacks, the inflorescences, leaves, and branches are fully moistened, and the trillion is sold to the degree of dripping. 2. Methyl tobuzin and carbendazim should be used alternately.

3. The concentration of pesticides must be matched according to the family comm standard, and the concentration cannot be arbitrarily increased, otherwise it is not conducive to future prevention and control. The prevention and control of mulberry disease is mainly based on prevention, so attention should be paid to the prevention and control in the early stage. 2. Mulberry garden bacterial wilt prevention and control methods 1. Strengthen plant quarantine and cultivate disease-free seedlings.

2. Pick mulberry leaves reasonably, and minimize the flow of wounds in the process of picking leaves and feeding silkworms throughout the year. 3. Promote no-tillage cultivation and implement land rotation. 4. Promote disease-resistant varieties.

5. Eliminate the stagnant water in the mulberry garden in time. 6. Remove the diseased plants and pesticides in mulberry orchards. It was found that the diseased plants were dug up and burned in time, and the surrounding holes were watered with copper ammonium mixture, that is, 3 kg of ammonium carbonate and kg of copper sulfate, sealed in a plastic bag for 24 hours after mixing, and 200 kg of water per male imitation imitation jin was poured on the roots, once every 7 days, 3 times in a row.

Now the mulberry fruit in my land is about to be picked, it is not safe to use chemistry, I heard that the use of traditional Chinese medicine garlic oil, Liangguo is OK?

OK. Where can I buy these herbs? What the**?

I beg you to inform me.

The ** of garlic oil is 1 kilogram, about 70-80 yuan, and the purchase channel should be available in the place where the normal pesticide is sold.

I don't have these pesticides in my land, where can I buy them online?

You can go to a treasure and have a look.

Summary. Hello dear, the specific prevention and control technologies are as follows:

1. Reasonable spring plowing and watering.

At the beginning of March (before the mulberry tree germinates), turn the soil deeply, bury the fungus ascomycetes in the soil less than 2 inches or cover with mulch, extend the watering interval, and do not make the soil air temperature too large.

2. Soil disinfection.

When the temperature reaches about 15, moisten 10 15 kg of fine soil with 4 5 kg of 50% carbendazim wettable powder per mu, mix well and sprinkle it in the field, and rake it into the soil.

3. Pharmaceutical prevention and control.

Begin to spray at the beginning of mulberry flowering, spray three times in a row, with an interval of 5 days each time, and choose one of the following agents.

50% Pythium (Suclin) WP 1500 2000 times;

50% Nonliling WP 1000 1500 times liquid;

50% Park Hae-in wettable powder 1000 1500 times liquid;

70% thiophanate-methyl (methyl tobuzin) 1000 times solution;

50% carbendazim wettable powder 800 1000 times liquid.

Fourth, remove and clean up the diseased mulberry in time.

When a diseased mulberry is found, remove it in time, clean up the diseased mulberry in time, and bury it outside the park to prevent reinfection. Hope it helps, congratulations.

How to prevent and treat mulberry ginkgo disease?

Dear, hello, the specific prevention and control techniques are as follows: 1. Reasonable spring plowing and watering in early March (before mulberry germination) deep turn the soil, bury the fungus ascomycetes in the vertical soil below 2 inches or cover the mulch, extend the watering interval, and do not make the soil air temperature too large. 2. When the temperature of soil disinfection reaches about 15, moisten 10 15 kg of fine soil with 4 5 kg of 50% carbendazim wettable powder per mu, mix well and sprinkle it in the field, and rake it into the soil.

Third, the prevention and control of pesticides in the beginning of mulberry flowering began to spray, spray three times, each time between 5 days, you can choose one of the following agents. 50% Pythium (Suclin) WP 1500 2000 times; 50% Nonliling WP 1000 1500 times liquid; 50% Park Hae-in wettable powder 1000 Kaihong 1500 times liquid; 70% thiophanate-methyl (methyl tobuzin) 1000 times solution; 50% carbendazim wettable powder 800 1000 times liquid. Fourth, timely removal and clear knowledge of Dali disease mulberry found that there is a diseased mulberry, timely removal, the landing of the sick mulberry in time to clean up, to the garden outside the centralized deep burial and destruction, to prevent re-infection.

Hope it helps, congratulations.

Have a great day.

Hello, welcome to our consultation platform Mulberry and ginkgo disease is a fungal disease of the trunk and main branches of the mulberry family, the pathogen invades the epidermis of the tree, infects the new tissues in the spring, and develops in the summer. If action is not taken**, it can cause tree death. If your mulberry or ginkgo fruit has already been affected by the disease, in general, cutting down the entire tree should only be considered in severe cases.

If your condition is mild, you can try the following**:1Removal of the diseased area:

First, remove impurities such as bark and aging weeds infected by the disease, disconnect the damaged dead branches, remove the pathogens, and bury them inside the dead branches. 2.Prevent further transmission:

Promptly cut and destroy adjacent wilted areas to stop the spread of germs. At the same time, the incision is disinfected. 3.

Prune branches: Give priority to pruning the diseased parts, deform capsules, small branches, etc., and cut off damaged dead branches. If the disease is severe, large-scale pruning and virus clearance treatment should be considered.

4.Spraying agents: Specialized fungicides can be selected for disease**.

However, please be sure to follow the instructions for use and ecological protection regulations, and do not use drugs indiscriminately. If the above methods cannot be closed, you need to consider whether to cut down the whole tree to avoid further infection and harm to other trees.