What pests and diseases should be controlled by wolfberry, and how to deal with the main pests and d

Melanocarpal disease. It is harmful to young branches, leaves, buds, flowers, green fruits, etc. The starting period is from mid-May to early June.

Prevention and control methods: Combined with winter pruning, the black fruits, diseased branches and fallen leaves and fruits of the Chen Shushi are burned or buried deeply; Spray 1: 1:

120 times Bordeaux solution or 50% wettable antibacterial extra 1000 times solution, spray 1 time every 5-7 days, 3-4 times in a row. a.Powdery mildew.

It is harmful to leaves, and generally occurs in the rainy season. Prevention and control methods: 45% sulfur gum suspension 200-300 times liquid spray, 30-35 ml per mu; 50% antibacterial special 600-800 times liquid spray, spray once every 10 days, 2-3 times in a row.

b.Pest. There are mainly negative mud insects, fruit flies, aphids, etc., which are harmful to leaves and fruits, and can occur from April to September.

Prevention and control methods: remove insect fruits at any time and burn them in a centralized manner; From July to August, spray with 1500 times of 40% dimethoate emulsion or 1000 times of 50% dichlorvos emulsion, once every 7-10 days, 3 times in a row.

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When the new shoots of wolfberry grow, the beetle like the goldenrod insect often occurs, bites the new leaves and pulls the feces, which seriously affects the growth of the large-leaved wolfberry, and it is advisable to spray insecticides in spring when the wolfberry has just sprouted, spray 1 time every 10 days, spray 3 or 4 times in a row, and strictly prevent the pest from laying eggs on the bud tip.

It is necessary to clean up pests and diseases regularly, manage them scientifically, have a certain amount of sunshine, spray disinfectant, and use drugs with sterilization effects.

Sprinkle some fertilizer, spray some pesticides to remove insects, you can often weed, loosen the land, you can insert some mosquito coils in the land, and adjust the thickness of the land appropriately.

Pesticides can be sprayed, and the medicine can be directly mixed with water to irrigate the saplings, and the saplings must be guaranteed to have enough light.

Prepare some pesticides, mix them with water, and spray them in bottles on the land where the goji berries are grown.

You should choose some sprays that are not in the environment and should be sprayed to get a good pest control.

Goji berry is a relatively high nutritional value of the food, although the fruit is relatively small, but in the process of growth is prone to pests and diseases, common pests and diseases are more, need to be prevented in time, so as not to affect the quality of wolfberry.

Goji berry is prone to black fruit in the process of growth, which is a kind of pest and disease, generally when the fruit is green, there will be some brown spots or small black spots, if not timely control, the whole fruit will turn black, this pest and disease mostly occurs in summer, because the summer water is relatively small, thus affecting the growth of the fruit. The main method of prevention and control is to prune off some diseased branches and stumps in the wolfberry garden when the garden is cleared, early spring or late autumn, and burn them intensively. You can also choose excellent varieties for cultivation, so that the plant disease resistance will be more, strong but also choose a reasonable irrigation method, pay attention to the problem of stagnant water, if the temperature in the field is too high, there will also be bacteria reproduction to control.

It is also possible to plant through reasonable fertilization and pruning, and wolfberry needs to be applied with organic fertilizer plus some trace element fertilizer, so that the plant's disease resistance will become stronger. Goji berries may also appear root rot, mainly the leaves turn yellow or the ground, the influence of this fungus is relatively large, generally in the second year of the spring equinox, easy to appear and irrigation and precipitation related. The main method of prevention and control is that irrigation can be irrigated by drip irrigation, which can not only ensure that the soil in the ground becomes more moist, but also regulate the sprinkling time.

You can also apply an appropriate amount of fertilizer, you can choose organic fertilizer and add some, other fertilizers, and the nutrients of the plant will become more balanced. Goji berries may also have powdery mildew, which is relatively harmful to the leaves, and it will be found that the appearance of the leaves will appear pink spots or mildew, and in severe cases, the whole plant is white. The method of prevention and control is to turn the surface of the soil more, weed and sterilize to prevent infection, and also to improve the fertility of fertilizers to make the plants more vigorous.

The occurrence of wolfberry pests and diseases has the characteristics of seasonality and frequency, and the pests and diseases that appear in different seasons are different, so the correct method should be taken to prevent and control them according to the characteristics of pests and diseases.

The occurrence of wolfberry pests and diseases is closely related to the season. Spring is the season of high incidence of pests and diseases, prone to root rot, powdery mildew and gum disease, and after summer, it is prone to anthrax. The onset of these pests and diseases has different conditions, and the symptoms after the onset are different, and the methods of prevention and control are also different, and targeted prevention and control needs to be done according to the pests and diseases.

Goji berries are prone to root rot in the spring. The main symptom of this disease is liver rot and yellowing and drooping leaves. The germ overwinters through the stumps in the soil, and in the spring of the following year, the goji berries enter the plants and cause the plant to become ill.

Anthrax germs are often spread through rainfall, irrigation, and other means. If you want to prevent and control this disease, you should use drip irrigation as much as possible to water, which can not only ensure that the soil is moist, but also will not provide an opportunity for the spread of the virus.

Goji berries are also susceptible to powdery mildew in spring. The pathogens of this disease will remain on the surface of the land for winter, and when the spring of the second year comes, it will directly affect the growth of wolfberry, especially the time of entering the flowering and fruiting period, the incidence rate is relatively high, and a large number of white mildew and pink will appear on the surface of the leaves when the disease occurs, and the color spots will cause the leaves to fall off when the color spot is serious, which will affect the results of wolfberry. To prevent this disease, it is necessary to turn the shallow surface soil more, and at the same time to weed as soon as possible, reduce the reproduction and integration of pathogens, prevent cross-infection of plants, and rationally use fertilizers to improve the fertility of the soil, make the plants healthier, and improve the virus resistance of the plants.

Anthracnose is also a common pest and disease of wolfberry, which is relatively high in the summer rainy season and low in the dry season. This disease, also known as melanocarposis, is a condition in which black spots or brown spots appear when the fruit is green, and when it is cloudy and rainy, the lesions will continue to grow larger, eventually causing the fruit to turn black. The way to prevent this pest and disease is to remove the source in time, and to remove the grass roots, bacteria and insect pests that overwinter in winter, and to carry out reasonable farming, as well as timely watering and proper topdressing.

Rotting of the roots may occur, which will lead to the death of the plant, the yellowing of the leaves, the occurrence of low drooping, choose the right variety for planting, pay attention to watering and fertilizing.

Wolfberry disease and insect pests are also known as black fruit disease, mainly damage the fruit, but also infect young branches, leaves, green fruit in the early stage, the fruit surface appears needle big brown small dots, and by the spot, in winter to prune and shape, remove the diseased branches, and thoroughly clean the field litter, completely destroy, strengthen field management, increase phosphorus, calcium fertilizer.

Aphids are catastrophic pests in wolfberry production, mainly harming young shoots, leaves, flower buds and green fruits. Prevention and control methods: strengthen cultivation and weeding, remove diseased branches and residual branches in time and burn them; At the end of the Mid-Autumn Festival in September, aphids were sprayed with 33% imidacloprid emulsifiable concentrate 3000 times or 10% imidacloprid 1500 times before egg-laying.

Wolfberries can be fertilized, sterilized and disinfected, and the growth patterns of wolfberries can be managed, so that pests and diseases can be prevented.

When planting wolfberry, spray pesticides on wolfberries first, and then spray pesticides according to the growth of wolfberries after planting, which can prevent insect pests.

It is necessary to water and fertilize in time, and to ensure the fertility of the soil, we should prescribe the right medicine, choose the right pesticide according to the specific situation, ensure ventilation, and also pay attention to ensure the temperature of planting.

First, keep enough light, second, green pepper water, third, reasonable fertilization, fourth, early prevention of pests and diseases, fifth, spray pesticides on time.

Leaf wolfberry is very prone to encounter some diseases in the whole planting process, generally powdery mildew, gray spot, anthracnose, root rot, fruit flies, aphids, mites and psyllids.

1. Powdery mildew.

Characteristics: wolfberry powdery mildew is a fungal disease, the key damage to the leaves, the long-term incidence rate of 20, the front and back of the affected leaves are milky white powdery mold layer, the damaged leaves are often wrinkled and rolled, and the diseased leaves are yellow and shriveled in the middle and late stages.

Prevention method: Eliminate diseased leaves and branches in the field in winter, burn them, and reduce pathogenic bacteria in the field. In the early stage of the disease, label white (4% tetrafluranazole aqueous solvent) and Heyi Duobao (29% Ningnan) were used.

fluconazole wettable powder), Jin Xiucai (10% difenoconazole water dispersed granules), etc., spray 2-3 times depending on the condition, and spray once every 10-15 days.

2. Gray spot disease.

Characteristics: Gray spot disease of wolfberry is classified as a fungal disease. The key damage to the leaves, with a long-term morbidity of 3o, can lead to damage in 20 30 . Specifically, the lesions on the leaves are ring-shaped, gray-white to light brown in the middle, slightly darker on the edges, and the diseased part is concave.

Prevention method: improve cultivation technology, apply phosphorus and calcium fertilizer, and improve the disease resistance of the main stem. In June, 80% mancozeb wettable powder was gradually sprayed to prevent diseases.

In the early stage of the disease, spray Yunong No. 1, Runhuan (25% pyraclostrobin suspension % Duo Fumei Fu Zinc, 10 15 days spray once, spray 3 4 times in a row.

3. Root rot.

Characteristics: wolfberry root rot is a common soil fungus disease, in the case of the disease, the roots of wolfberry will turn brown, less hair, in the early stage of wolfberry, the leaves of wolfberry will be small and yellow and thin, more serious when the roots of wolfberry rot and shrink, the trunk slowly withered. It is generally produced in mid to late April and June, and expanded in July and August.

Prevention method: to prevent planting diseased seedlings in the case of planting, in the field of wolfberry, once the diseased plant is found, the pile should be cleared immediately, the healthy plant should be replanted, and the part of the diseased plant should be disinfected with lime. It can be applied to Yunong Jinpin, Lifu Kang and other self-spraying, and the actual effect of matching and opening is stronger.

Fourth, anthrax.

Characteristics: wolfberry anthracnose is also known as black fruit disease, branches, leaves, leaf edges are diseased to cause dark brown semicircular lesions, blackened after expansion, the environmental humidity is high and wet rot, and the surface layer of the diseased part is sticky drop-like orange-red is a little smaller.

Prevention method: Immediately eliminate diseased plants, diseased leaves, crux and weeds, and burn them together, reasonably dense planting, and improve fertilizer and water management methods. Charcoal lock (30% bromine) can be applied. prochloraz), Dingxiao (40% dicyanide. pyrazolate) and other prophylaxis.

You should buy pesticides in advance, and then spray them every three or four days, ventilate and bask in the sun, and you can control this pest.

It is necessary to choose excellent varieties of wolfberry for planting, spray pesticides in advance, prevent pests and diseases in time, and prepare the land in time.