You can search for pesticides used on fruit trees: Zhuhai insecticidal aerosol manufacturer, which manufacturer ranks first,

What pesticides are sprayed on fruit trees?

Imidacloprid, acetamiprid and polyester are used to treat aphids, while dimethoate is used to treat caterpillars.

Hope to adopt

What kinds of pesticides are used for garden fruit trees?

The first generation is organic benzene, the second generation is organic chlorine, the third generation is organic phosphorus, the fourth generation is fake polyester, and the fifth generation is biological insecticide!

What medicine can be used to effectively remove fruit tree pests?

This should be some kind of scale insect. Some broad-spectrum pesticide emulsifiable concentrate with strong permeability can be used for control, such as Oxfam emulsifiable concentrate, deltamethrin, omethoate, malathion, engine oil emulsion and so on. You can also use special chemicals for scale insects, such as Guoguang scale insects. For details, please refer to Baidu Encyclopedia entry "Scale Insect".

Can any fruit tree use pesticides?

Can any fruit tree use pesticides? Not necessarily. Some fruit trees don't need any pesticides at all, such as persimmons, walnuts, chestnuts and chestnuts. Some fruit trees need heavier pesticides, such as peach trees, apples, pear trees and apricot trees, while others need lighter pesticides, such as cherry, jujube, litchi, longan and papaya. Heavy pesticides should use strong drugs, light pesticides should use general drugs, and there are pollution-free varieties of drugs, such as phoxim, avermectin, malathion, imidacloprid and so on.

What pesticide is good for spraying fruit trees?

It depends on what pests and diseases to prevent. If it is Tenebrio molitor, then imidacloprid spraying, if it is a disease, it depends on the actual situation.

What are the chemical pesticides commonly used in fruit trees?

I. botanical insecticide

1. Soak 1 kg tobacco leaves in 10 kg hot water, take them out and put them in another 10 kg clean water for kneading. Mixing the two rubbing liquids, mixing with 10 kg lime water (including 0.5 kg lime) and spraying can control aphids, thrips and bedbugs.

2. Spraying 0.5% Lubaowei EC1000 ~ 2,000 times solution to control leaf-eating caterpillars.

3. Add 1 kg water to 50 grams of pepper water and pepper noodles, cook for 10 minute, cool and filter, and spray aphid control.

4. plant ash 1 plant ash was soaked in 5 parts of water for 24 hours, filtered and sprayed to control aphids.

5.928 1 Also known as Green Tree Doctor and Di Jun, it is composed of Chinese and western medicines and biological fluids. Brushing the liquid for 4 ~ 5 times after scribing on the diseased scar has a good effect on treating decay.

Second, microbial pesticides

1 and nongkang 120 microbial fungicides are metabolites of radioactive bacteria. 4% special spray for fruit trees with 600-800 times solution can prevent and control powdery mildew, rust and anthracnose of apple. Applying its solution 200 times on the diseased scar can treat the rot well. Nongkang 120 contains 10 kinds of amino acids, which can also play a role in strengthening trees and resisting diseases after application.

2. polyoxin (Polycyclic Serine, Baolian) 10% polyoxin Wettable Powder 1000 times liquid spray can control apple spot defoliation; Spraying apple twice from bud stage to after flowering can prevent apple mold heart disease.

3. liuyangmycin 10% liuyangmycin EC 1000 times spray can control red spider.

4.Bt (Bacillus thuringiensis) bacterial insecticide can be sprayed on trees with 500 times Bt emulsion, which can control leaf-eating caterpillars and larvae of fruit trees, and the effect is better with 0. 1% washing powder.

5. Antibiotics produced by microbial fermentation of avermectin (avermectin, acaricide). Spraying 4000 times 1.0% avermectin EC has a good control effect on red spider, especially on tetranychus urticae (white spider) which is difficult to control.

When do fruit trees spray pesticides?

After the spring, the temperature rises gradually. Sulfite mixture is still a broad-spectrum, efficient, long-lasting, low-cost bactericidal and acaricidal pesticide, especially when sprayed in high concentration before and after the germination of fruit trees, which has a very significant effect on reducing the number of pests and diseases, reducing the annual dosage and reducing the cost.

Boiling of sulfur mixture: sulfur powder 10, quicklime 7 and water 60. First, heat the water, take a small amount of hot water to make the sulfur powder into paste and pour it into the pot to boil, then slowly add quicklime to increase the firepower, and keep stirring until the lime blocks are added, then cook for 45 minutes (with strong fire for the first 15 minutes, and with warm fire for the last 30 minutes) until the liquid turns into soy sauce color, and turn off the fire to cool. After cooling, the precise concentration is measured by Baume's specific gravity. Generally, apple trees over 3 years old should be sprayed with 100 times of "Huangguanjun" solution and Bomei 3-degree sulfur mixture for garden cleaning and disinfection, which not only kills bacteria and insects, but also shocks the "gene alarm clock" of fruit trees to remind them to wake up from hibernation in time and prevent and control all kinds of red spiders, scale insects and wintering eggs. Spraying biological pesticides to control aphids and leaf rollers in early April. In early April (after germination), spraying 0.3% urea solution and potassium dihydrogen phosphate solution alternately for 65,438+0 or 2 times at intervals of 7-65,438+00 days, so as to make the branches and leaves strong, promote the generation of new roots, gradually restore the tree vigor and ensure the growth. Adding "Shujiangjun" 100 times solution when spraying foliar fertilizer or pesticide on fruit trees every day can inhibit the replication of infectious viruses, resist the infection of airborne viruses, and protect the population and quantity of beneficial animals earthworm and natural enemies of fruit tree pests. Therefore, it is very important to protect natural enemies while eliminating pests and diseases.

Apple disease control:

First, brown spot disease

Chemical control should be done in three stages, namely, spraying drugs in time after flowering (half a month before onset), before rainy season and before rainy season. Spraying 1: 3: 200 lime Bordeaux solution+Guaguozhuangdiling at the early growth stage and spraying at the late growth stage, or using 50% carbendazim 600 times solution, 50% thiophanate-methyl 65438 times solution +0000 times solution, 65% zineb 500 times solution+Guaguozhuangdiling for control. When spraying medicine in rainy season, 2000-3000 times of adhesive should be prepared. The early defoliation of apple mainly shows the mixed invasion of brown spot and gray pheasant. It is also necessary to strengthen the management of soil, fertilizer and water to improve the disease resistance of trees.

Second, speckled deciduous leaves

Spotted defoliation generally begins in late June, and the peak period is from late July to early August. Early spring rain, serious illness in autumn rain. 65438+1stopped at the beginning of October. Attention should be paid to chemical control of tobacco brown spot. Spraying 50% chlorpheniramine WP 1000 times+Guaguozhuangdiling or 70% mancozeb WP 500 times+Guaguozhuangdiling, or 10% cycloserine 1200 times+Guaguozhuangdiling or 40% ethyl phosphate for 20 consecutive times after flowering. Bordeaux mixture rich in lime also has a good control effect. At present, it has entered the Mid-Autumn Festival, and all kinds of early deciduous diseases will gradually stop new infections. However, for orchards with serious diseases this year, it is necessary to clear the fallen leaves of orchards in time, cut off diseased branches and bury them intensively to eliminate the source of diseases and reduce the incidence rate in the coming year.

How hard can you spray pesticides on fruit trees in April?

Third, nursery intercropping.

Within 1-2 years after fruit trees are planted, crops can be interplanted when they are not closed, and land information can be fully used for growth in a short time. Intercropping crops should meet the following requirements: (1) Short growth period; (2) Staggering the period of fertilizer and water demand with fruit trees; (3) The plant is short, which does not affect the illumination of crops and avoids vines and tall crops; (4) The fruit trees are free of pests and diseases; (5) intercropping crops has high economic value.

Four, fruit tree pruning

1, pruning and shaping of young fruit trees. At present, dwarf and high-yield cultivation techniques are adopted in production, and young fruit trees are mainly cultivated in tree shape. Evergreen fruit trees are cultivated by thinning branches, so that the fruit trees are ventilated and evenly distributed; Deciduous fruit trees such as peaches, plums and pears often adopt Y-shaped and cup-shaped trees, while pear trees adopt inverted herringbone branches or double hedges.

2. Pruning and shaping of adult fruit trees. Prune after picking fruit, and cut off diseased branches, residual branches, dead branches and weak branches with fruit scissors. Pruning in winter: Deciduous fruit trees enter dormancy and begin pruning. Pruning of evergreen fruit trees will be carried out before the spring shoots are pulled out and the old leaves fall off at most.

Five, orchard fertilizer and water management

1, apply base fertilizer. Fruit trees often apply basal fertilizer immediately after fruit picking, and for high-yield or late-maturing varieties, basal fertilizer is applied before fruit picking. The specific time is September-65438+1October in autumn, and the whole garden is deeply ploughed for 20-30 cm, and weeds and sundries in the garden are removed and destroyed together with pruning branches. Trenching outside the tree tray is 30 cm deep and 20 cm wide, and 2000 kg of organic fertilizer and special fertilizer for fruit trees are applied per mu 100 kg.

2. Fruit tree coverage rate. Combine with fertilization, covering that fruit tree tray with 5 5- 10/0cm thick straw; Fruit trees with poor light transmission in the tree hall have higher requirements for fruit coloring, and the tree tray can be covered with silver reflective film.

3. Top dressing and irrigation. According to the amount of fruit, tree potential and winter fertilization, topdressing can be carried out in the critical period of fruit tree growth. Top dressing before or after flowering, and applying 25-50kg special fertilizer for quick-acting fruit trees per mu; During the fruit expansion period, apply 50- 100 kg special fertilizer for quick-acting fruit trees per mu, and fill it with enough water. After fruit picking, irrigation combined with base fertilizer in dry areas in autumn and winter can promote fertilizer decomposition and meet the later growth of fruit trees.

Six, flower and fruit management

1, hydrophobic fruits and vegetables. Artificial flower thinning and fruit thinning can start from re-cutting leaves before flowering, adjusting the amount of buds, and then thinning vegetables and young fruits after flowering. Fruit thinning should be carried out as soon as possible after the first physiological implementation of young fruits. According to the amount of fruit per plant, the weak fruit in inflorescence is thinned out, and the top fruit, weak branch fruit, small fruit, diseased fruit, insect fruit and abnormal amount are thinned out, and the strong fruit is retained.

2. Fruit bagging: Double-layer bags of whole wood pulp should be selected as soon as possible after fruit setting, and pesticides and fungicides should be sprayed once. Bagging should be completed within 15 days, and bagging should be removed about 30 days before fruit harvesting.

Seven, pest control

1, manual control. Pick fruits, cut off branches of pests and diseases, dig deep into the soil, remove weeds and sundries, and destroy them centrally; Make use of the living habits of various pests to kill and trap them in time; Bagging material

2. Chemical control. Use pesticides or biopesticides with high efficiency, low toxicity and low residue to control peak pests and diseases. Such as broad-spectrum fungicides, mancozeb, chlorothalonil, carbendazim, etc. And broad-spectrum pesticides: Kung Fu, Trichlorfon, Chlordecone, Bt, etc. The last use of chemical pesticides is required to be 30 days from the harvest time.

3.3 point storage fertilizer water

The technology of "storing fertilizer and water in caves" is put forward in view of the serious shortage of investment in fertilizer and water management in Baishui dryland orchard, and it is an important technical measure to be popularized in the future. It has the advantages of low cost and simplicity. Especially, it has more popularization value for transforming the tree orchard after thinning.

This technology is an effective measure to implement "intelligent fertilization" after "great transformation" of orchard. The basic starting point is to concentrate the limited fertilizer and water, and form several fertilizer and water "enrichment areas" in the concentrated distribution area of fruit tree roots to improve the utilization efficiency of fertilizer and water.

Arbor orchards (such as planting 22-33 plants per mu), before and after germination in spring, dig ditches and holes (44-66 plants per mu) with a length of 100 cm, a width of 50 cm and a depth of 50 cm on both sides of the outer edge of the crown, bury straws per plant 10Kg, and apply high-quality farm manure of 25-50kg. Apply 0.75- 1.0kg of chemical fertilizer (urea, diammonium and potassium sulfate each 1/3 or so), apply chemical fertilizer to a depth of 10- 15cm, water 50kg per ditch, and then cover with plastic film. Top dressing once in the growing season (critical period of flower bud differentiation-fruit expansion period), and 0.75- 1.0kg of chemical fertilizer (mainly phosphorus and potassium, a little nitrogen) is applied to the plants.

After that, four important water demand periods (germination to flowering period, new shoot flourishing period and rapid fruit expansion period) in apple tree growth are combined every year. ......

Fruit trees at home have this disease. Who knows what disease it is and what pesticide to use?

Search for love on Baidu, and.