How can jasmine pests and diseases be prevented? Can pesticides be used?

Not only jasmine, but all flower pest control principles are "comprehensive prevention with prevention as the mainstay". A tooth for a tooth is a tooth for a tooth, and the treatment has reached an advanced stage. "So" the hands can be lazy, but the eyes should be good.

The objectives of the Jasmine Pavilion are: 'white roots wrapped in silk on the silt soil, leaves brown (anthrax) and other yellow (leaf moths), the trunk wriggles, hanging hoarfrost, and hoarfrost gradually spreading. The leaf margins are neatly curved (leaf wasps are mostly seen outdoors on balconies), and the branches and leaves hang dryly on the top (branch blight, gradually dying).

Watering is the key to cultivating good jasmine. You can see that the ability to discern flowers is neglected. Most of the three major diseases of jasmine's fatal disease "white silk, stem rot, and branching" and other causes are due to wrong watering!

White silk disease occurs in the roots, the roots are entangled like white spider webs, the disease is critical, and there is no specific medicine for the disease. (William Shakespeare, Hamlet, Healthy) stem rot blight is not bad. All causes are caused by "wet mold, bacteria".

Therefore, jasmine maintenance is moist, drought tolerant, afraid of stagnant water, soil pine must keep in mind the principle of aeration.

Jasmine is most common pests in July-September. It can kill all-purpose powder or pyrethroid, spray the water 200 times, and spray it once every half a month after placing it. It is also necessary to prevent harmlessness, and to kill from the beginning.

Remember, if you don't sprinkle the medicine in the middle of the day, the spray will definitely hurt the leaves. 8 a.m. and 5 p.m. are more appropriate.

The following common pests: scale insects (Guoguang lizard**, less passive).

Jasmine without insects can be watered by soaking tobacco in clean water for a period of time to water the jasmine and pot. It can effectively prevent the preventive effect of jasmine peanut worms. If the infestation is severe, the pot and soil should be ground with an insecticide.

Jasmine bugs don't grow well, but if jasmine wants to bloom better, it needs to take certain insect repellent measures. When spraying jasmine with pesticides, don't just spray the leaves and flowers, but also the soil and roots. Otherwise, the pests will not die completely. The leaves that have already grown insects should be removed in time.

Jasmine should pay attention to the problem of watering. It is cold-resistant, afraid of standing water, must loosen the flowers! Prone to insect infestation in August-September!

You can use tobacco and pour it in clean water for a period of time, which can effectively prevent jasmine, peanuts and bugs. If the insecticide is severe, use an insecticide to grind the pot and soil.

It is possible to soak tobacco in water for a while, then water the jasmine and pot, and if it is severe, then use insecticides. When using pesticides, spray not only the leaves and flowers, but also the soil and roots.

You can soak tobacco in clean water for a while, water jasmine and flower pots. This is an effective way to prevent jasmine infestation. If the infestation is severe, the pot and soil should be ground with an insecticide.

Scientific and reasonable fertilization and water control can effectively prevent jasmine pests and diseases, and plant special insect repellent should be used if the plant is sick. Spray evenly on plant leaves.

Small flying insects appear in jasmine, and you can kill a large number of small insects by spraying it with "it".

1. Pest control:

The main insect pests of jasmine are leaf curling moth and red spider mite, and the main control methods are: the first biological control method, removing dead branches and fallen leaves, and centralized watering, which can reduce part of the overwintering base and protect and utilize natural enemies. Predatory mites, ladybugs, lacewings, thrips, etc. have a certain control effect on mites.

The second pesticide prevention and control, the red spider has strong reproductive ability, strong pressure on the selection of pesticides, and is easy to produce drug resistance, so it should be used in time and rotated.

2. Disease prevention and treatment

White silk disease: remove the remains of diseased plants in time and destroy them in a centralized manner; Strengthen management, strict quarantine, and eliminate the source of the disease.

Anthrax: The pathogenic bacteria overwinter on the infested leaves with conidia and mycelium, and the disease is generally more severe in summer and autumn. Cultivation management should be strengthened, and diseased leaves should be removed and destroyed in time.

Leaf spot: Cut off the diseased leaves in time and destroy them. Less nitrogen fertilizer and more phosphorus and potassium fertilizer.

Soot disease: strengthen management and improve ventilation conditions. Eliminate aphids and scale insects in time.

The common diseases of jasmine are mainly white silk disease, and the common insect pests are chaff shield ants, cotton aphids, etc.

White silk disease is easy to occur in the rainy season and when it is high temperature and humidity in northern Jiangsu. At the beginning of the disease, the root and neck of potted jasmine near the ground became uncolored and gradually decayed, and gradually spread and expanded to produce a white silky silk film, and then sclerotia appeared on the lesions, which were white at first and then yellow to dark brown, only rapeseed-like size. However, the phloem of the susceptible site rots, the nutrition of the plant is blocked, the leaves are yellow and fall off, and the whole plant dies in severe cases.

The sclerotia of white silk disease can survive in soil. More than 4 years, it is infected**, so the repotted soil such as garbage soil, vegetable garden soil, etc. must be exposed to the scorching sun for sterilization and disinfection. Generally, it is necessary to turn over the pot and change the soil every year, and the old soil should not be used continuously without disinfection.

Diseased plants should be removed immediately.

The nymphs and female adults of the bran shield bee often suck the sap in clusters on the back of the leaves and in the shade of the branches, and carry out damage, which is easy to make the flowers, branches and leaves yellow and wilt in severe cases, and can induce coal pollution disease. It usually occurs from May to September in northern Jiangsu. Prevention and treatment of this disease:

After the plants are pruned, the insect branches and leaves are cut off and burned in a concentrated manner to maintain good ventilation and light transmission ecological conditions. 5-6 months is the first generation of nymphs hatching period, can be selected 50% marathon emulsion 1000 times or 25% imithion 800 times liquid evenly sprayed, every x10-15 days 1 time, 2 3 times in a row, can receive good results. Cotton is mainly inhabited by adults and nymphs on young leaves, shoots, young stems and flowers, and often sucks sap on the back of the leaves, often causing leaf discoloration

Shrinkage and curling, resulting in early flower and leaf litter, plant wilting in severe cases, and inducing coal stain disease.

Cotton aphid can occur in more than 10 generations a year, from April to October. When cotton aphid is found to be a pest, you can choose to spray 1 time of 5% cyclokill aphidin 1500 times or 25% iminophos 800 times.

Cinnabar leaf mites are also known as cotton red spiders. It can damage many flowers and many greenhouse plants. Jasmine is one of the most common victimized flowers.

The leaves of the damaged flowers appear small yellowish-white spots at first, and then gradually turn red and then expand to the whole leaves, causing the leaves to curl and fall off. This snail develops quickly and is seriously harmful, affecting the growth and flowering of flowers and trees.

Control method: Weeding and cleaning the flower bed in winter, and irrigating the nursery can eliminate the source of overwintering insects. In the damage period of red spiders, it can be sprayed with 1500-2000 times of 40 tricoxalol EC (or 1500-2000 times of 50 tricophalita wettable powder, or 1000-1500 times of 40 dimethoate).

Share the knowledge of family flower raising! The maintenance method of jasmine and the reduction of pests and diseases are worth learning.

Leaf front: Leaf mites (Rhizometes).

Leaf back: pear psyllid.

Spraying - avermectin, can kill two insect pests at a time.

Your jasmine tree is too weak to grow and has a lot of diseases, including insect infestations and fungal diseases.

Pests and diseases: red mites and small cyan aphids, mainly harm the young parts of jasmine, affect the growth and ornamentation of jasmine, and are susceptible to fungal diseases.

Prevention and control methods: Because you raise flowers at home, it is not recommended to spray pesticides. Let's start with a practical approach:

Dissolve a small amount of laundry detergent with warm water, dilute it into 400 times liquid, spray it on the damaged part of the plant, spray it once every 3-5 days, 3 times in a row, can suffocate aphids, whiteflies, mites and other pests to death. It is recommended to remove those leaves that are more severely damaged and then spray carbendazim fungicide.

Personal advice: throw away this pot, buy a new pot, pay attention to water and fertilizer, jasmine is a southern plant, it is difficult to survive the winter in the north, pay attention to frost prevention.

What is the most feared thing about farmed plants, is it poisonous? This can be effectively avoided, so it is excluded. So what exactly is it?

Of course, it is pests and diseases, once the plant has pests and diseases, it will rot roots and leaves, and it will lead to death. Jasmine has a subtle fragrance and is very charming. Jasmine often occurs in the breeding of some pests and diseases, let me introduce the common pests and diseases of jasmine and their control methods.

1. Red spider

One of the common insect pests of jasmine, red spider, when the red spider infestation occurs, it will absorb the sap in the jasmine branches and leaves, and finally cause the chlorophyll to be seriously damaged, and its leaves gradually appear yellow spots, and with the serious insect infestation, the leaves will eventually lead to the phenomenon of leaf blighting, hunger and falling off.

Prevention and control methods:When spider mites occur in jasmine, the first thing to do is to observe the severity of the infestation. If the situation is not very serious, the insect leaves can be removed directly, then disinfected, and then placed in a ventilated environment.

If it is more serious, it can be sprayed with 1000 times of 40% dimethoate emulsion.

2. Scale insects

Scale insects are one of the more destructive pests and the most common pest in jasmine farming. When jasmine is cultivated, scale insects will absorb the sap in the leaves and stems, causing the leaves of the plant to wither and fall, and in serious cases, it will directly lead to the death of jasmine.

Prevention and control methods:For scale insect control methods, first of all, we do a good job of appropriate light temperature in the usual breeding to maintain a ventilated and breathable environment. If scale insects occur, they can be removed first, and then sprayed with 1000 times of 50% pine borer emulsifiable concentrate, about once a week, until it is completely eliminated.

3. White silk disease

White silk disease is a common disease of jasmine, which can generally occur more often during the rainy season. When white silk disease occurs, it starts at the base of the stem and gradually expands, and the stems and leaves are covered with white silky hyphae. Finally, rapeseed-like sclerotia were born on the pathogen, which seriously endangered the healthy growth of the plant.

Prevention and control methods:For the prevention and control of jasmine white silk disease, the diseased plants should be destroyed in time at the initial stage of the disease, and then the potting soil can be disinfected with 70% pentachloronitrobenzene soil. When the condition is severe, spraying and prevention can be carried out with 800 to 1000 times of 75% chlorothalonil wettable powder.

4. Leaf spot

The most common disease of jasmine is leaf spot, when the disease occurs, it sees many yellow spots on the leaves, and then expands, the leaves are covered with large and small yellow spots, and finally causes the branches and leaves to wither and fall off, if not in time, it will directly lead to death.

Prevention and control methods:For the prevention and control methods of leaf spot disease, the diseased leaves can be removed in time at the early stage of the disease, kept in a ventilated environment, and phosphorus and potassium fertilizers are mainly used for fertilization. When the condition is severe, 50% carbendazim wettable powder 1000 times can be used for prevention and treatment.

Conclusion:In addition to these four most common pests, there are also some such as soot disease, anthracnose, snails, Spodoptera litura, whiteflies, snails, etc., and their control methods are basically the same.