How to treat diseases safely for flowers and trees

Bonsai plants and flowers if there is a disease, it needs to be treated with drugs, but pesticides always do more or less harm to the human body, how can we reduce the harm of pesticides to the human body? The editor will introduce to you four more commonly used methods of flower and tree treatment.

Rose

I. spraying method

1. Soak 0.5 kg of plant ash with 2.5 kg of water for 24 hours and spray its filtrate to kill aphids such as plum blossom, rose, pomegranate and so on.

2. Spraying with 0.1% baking soda solution can control powdery mildew of rose, chrysanthemum, impatiens, hibiscus, melon and leaf chrysanthemum and other flowers, and the prevention and treatment rate can reach more than 80%.

3. Spraying 2% urea solution every 10 days for 2 to 3 times can kill aphids, red spiders and other pests on flowers and trees.

2. Smear method

1. Dipping cotton balls in vinegar and gently rubbing them on the camellia leaves can not only kill shell insects, but also turn green the leaves that have been damaged by shell insects.

2. Wipe the leaves of orchids repeatedly with alcohol to get rid of the scale insects.

3, the stump bonsai branches rot, you can first scrape off the rotten part of the stump with the blade sterilized by iodine, and then apply iodine wine, and then rub it once every 7 to 10 days to prevent further decay.

III. Fertilizer application method

The main results are as follows: 1. Mixing a small amount of silicon fertilizer to flowers and trees can improve the hardness of their epidermal cells and enhance the ability of resistance to insect pests.

2. The frequent sprinkling of plant ash can greatly reduce the incidence of Botrytis cinerea in flowers such as peony, tulip and cyclamen, and also promote the stout branches and bright colors of flowers.

IV. Injection method

Woody flowers are often harmed by longicorn beetles, gibberries, wood moths and other trunk borers, which can seriously lead to hollow branches. In order to control such pests, the larval eggs can be killed by injecting 20 to 30 milliliters of ammonia with 20% concentration into the wormhole during the larval incubation period, before adult Eclosion and when the larvae are overwintering, and then seal the wormhole with clay or wax.

What are the commonly used fungicides? How to use it?

Flower diseases

(1) Dysen zinc. Dysen zinc is a kind of protective fungicide widely used in our country. Spraying 65% wettable powder 400 to 600 times can control black spot, anthracnose, white spot, brown spot, downy mildew, leaf mold, gray mold, rust, leaf shrinkage, bacterial perforation, blight, ring rot, flower rot, blight, etc., but it is not effective on powdery mildew. This agent has no therapeutic effect of internal inhalation, so it should be sprayed near the onset or early stage of the disease. This agent can not be mixed with alkaline pesticides.

(2) chlorothalonil. Chlorothalonil is a broad-spectrum bactericidal agent with protective and therapeutic effects. It can prevent spore germination, mycelium development and spore formation. Spraying with 600-1000 times of 75% wettable powder can control downy mildew, anthracnose, powdery mildew, rust, blight, leaf mildew, leaf spot, spot blight, gray mildew, ring rot, white spot, black spot, black spot, white rot, peach leaf shrinkage, citrus scab and so on. When the concentration of this agent is high, it is easy to cause drug damage to peach blossoms, plum blossoms and apples, so the concentration should not be on the high side. This agent can not be mixed with alkaline pesticide Bordeaux liquid. The medicine has a stimulating effect on human skin and mucous membrane, so we should pay attention to protection when using it.

(3) carbendazim. The original drug is light brown powder, which is a new type of internal absorption fungicide with high efficiency, low toxicity and broad spectrum, which has protective and therapeutic effects. It has low toxicity to humans and animals and is safe to plants. The main mechanism is to inhibit the formation of bacterial nucleic acid. This agent can control a variety of diseases caused by ascomycetes and half-known fungi, but has little effect on diseases caused by algal bacteria and is ineffective against bacterial diseases. The commonly used dosage forms are 50% and 25% wettable powder. Spraying with 500 Mel 1000 times of 50% wettable powder can control black spot, 'brown spot, gray spot, powdery mildew, anthracnose, stem rot, blight, leaf mold: flower rot, Sclerotinia sclerotiorum, soot, etc., but can not control rust; 500-fold solution of 25% wettable powder can be used to irrigate the root and stem to control seedling diseases. In addition, it can also prevent and cure green mold and penicillium in the storage period of bulb roots. This agent is easy to produce resistance when used alone for a long time, and can be mixed with many kinds of agents, but not with strong alkaline agents and copper-containing preparations.

(4) topiramate. The original drug is a light yellow powder, and it is also a new type of high-efficiency, low-toxic and broad-spectrum internal absorption fungicide, which has protective and therapeutic effects. It is safe to plants and has low toxicity to humans and animals. The commonly used dosage forms are 50% and 70% wettable powder. The 1000-fold solution of 50% wettable powder 500m can control powdery mildew, anthracnose, leaf blight, gray mold, seedling nucleus disease, spot disease, rot, white spot, leaf mold, white silk, scab, scab, leaf spot, penicillium, and so on. This agent can not be mixed with alkaline and inorganic copper preparations.

The scope of use of methyl topiramate is basically the same as that of topiramate, and its efficacy is 30% and 50% higher than that of topiramate at the same dose. The commonly used dosage forms are 50% and 70% wettable powder. 70% wettable powder 800 murine 1500 times liquid spray is available, and the control objects and precautions are the same as those of topiramate.

(5) Triadimefon is also called triadimefon. The original drug is a white or light yellow solid, which has the functions of protection, treatment, fumigation and eradication, and has the function of two-way conduction. It has a special effect on the control of powdery mildew, rust and smut. The residual period is long, usually 15 cents and 20 days. It has low toxicity to humans and animals and is safe to plants, so it is the best agent to control flower powdery mildew and rust at present. The common dosage forms are 15%, 25% wettable powder, 20% emulsion and 15% aerosol. The powdery mildew of rose, rose and peony and the rust of rose and begonia can be controlled by spraying 1500 times of 15% wettable powder, and the above diseases can also be controlled by spraying 2000 and 3000 times of 25% wettable powder. It should be noted that it should not be mixed with preparations other than strong alkaline and copper preparations. The medicine should be stored in a dry and ventilated place.

(6) Dioxong. It mainly plays a protective role, and has both internal suction and therapeutic effects. When used in plants, it can be quickly absorbed by roots and stems, and has a certain ability of conduction. It can control vertical blight, sudden drop disease, root rot, downy mildew, bacterial soft rot, bacterial corner spot, bacterial Verticillium wilt, Fusarium wilt and so on. Generally used for seed treatment and soil disinfection, can also be used for spraying. Generally, 90% raw powder is used for seed treatment, and the dosage is 0.2% of seed weight 0.5%; soil disinfection, 5 grams of 90% raw powder per square meter, plus 20 Mel 30 times fine soil, spray 70% wettable powder 500000 times liquid.

(7) streptomycin. It is mainly used for the control of bacterial diseases. The use of this pesticide to control flower and plant diseases has the advantages of low concentration, strong selectivity, easy penetration and transfer into plants, low toxicity to humans and animals, and safety to plants. The commonly used dosage forms are 0. 5%. 1% Mel 8.5% powder, 15%-20% wettable powder, etc. Usually with 100-500 mg / kg spray, injection or root irrigation, can control citrus canker, orchid soft rot and other bacterial diseases; with 200 Mel 500 mg / kg smear cancer after resection of the wound, also has a good effect.

(8) pentachloronitrobenzene. It is a soil fungicide, which is mainly used for seed dressing and soil treatment to control fungal diseases transmitted by seeds and soil. This agent has the characteristics of long efficacy, not easy to volatilize at room temperature, not easy to hydrolyze, and not affected by sunlight, acid, alkali and so on. Under normal conditions, the residual period in the soil can be as long as 3 years. There are three dosage forms of 50% wettable powder, 70% powder and 75% powder on the market. The seed was mixed with 70% powder, and the dosage was 0. 5% of the seed weight. 2% 0.4%, which can effectively control standing blight, quenching disease, root rot, sclerotia disease, gray mold, root nodule disease, stem rot, black pox disease, white silk disease, white stripe feather disease, purple plume disease and so on. 70% powder can be mixed with fine soil in a ratio of 1: (50-100) and sprinkled around the seedling rhizosphere, and then turned into the soil. When applying this agent, be careful not to make the powder come into direct contact with the seedlings, and mix the fine soil as evenly as possible; otherwise, it is easy to cause drug damage, and the agent should be kept away from light and stored in a cool place.

(9) Dysenamine. It has protective and therapeutic effects. Dysenamine can infiltrate into plants, has strong bactericidal power, does not pollute plants, and is not afraid of Rain Water scouring. After decomposing in the plant, it still has the effect of fertilizer. Spraying with 1000-fold solution of 50% water agent can control downy mildew, powdery mildew, anthracnose, bacterial angular spot, flower rot, etc.; soaking seeds with 250-fold solution or treating soil with 200-fold solution can control blight, quenching, root rot, etc. coat the stem with 200-fold solution. It can prevent and cure gum disease.

Commonly used fungicides include copper sulfate, sulfur powder, stone-sulfur mixture, ferrous sulfate, carbendan, carbendan, benzoate, aluminum ethyl phosphate, potassium permanganate and so on.

Clinical application of ginkgo biloba

China Huamu.com, February 18 News: ginkgo biloba preparation was used to treat coronary heart disease angina pectoris Yang Xueyi and others were used to treat 33 cases of coronary heart disease angina pectoris. The experimental results showed that the total effective rate of clinical symptom improvement from resting ECG ischemic changes was 94% and 64% respectively. The improvement rate of high shear value of whole blood specific viscosity was 84%, suggesting that the deformability of cells was improved in varying degrees. The drug had no effect on heart rate, blood pressure, blood glucose and blood lipids, and the adverse reactions were mild.

Treatment of retinal arteriosclerosis with ginkgo biloba capsule Yang Zhikun et al treated retinal arteriosclerosis with oral ginkgo biloba capsule. After 6 months, whole blood viscosity, plasma viscosity, fibrin degradation products, erythrocyte aggregation index and erythrocyte electrophoresis time were significantly decreased. Computer color ultrasound showed that the resistance index of central retinal artery decreased in varying degrees.

Compound Ginkgo biloba granule in the treatment of chronic hepatitis B methyl fibrosis Li Wei was treated with compound Ginkgo biloba granule (20g of ginkgo biloba, 8 g of Radix angelicae Sinensis, 8 g of Radix Salviae Miltiorrhizae, 5 g of Radix Scutellariae, 8 g of Radix angelicae Sinensis, 8 g of Radix Salviae Miltiorrhizae, 5 g of Radix Scutellariae, 5 g of Cordyceps sinensis, 2 g of Cordyceps sinensis, 4 g of Chuanxiong) to treat patients with early fibrosis of chronic persistent and active hepatitis B. The results showed that serum Ⅲ type, procollagen peptide, serum laminin, superoxide dismutase and malondialdehyde decreased significantly after treatment (P