Can pear trees be pesticide treated with stone sulfur mixture in early spring?

Stone sulfur mixture can kill insects and bacteria. It can be applied in early spring before the pear blooms. 45% stone sulfur mixture crystallization per 30 catties of water to 400 grams is safe "do not apply at noon when there is a sun".

Stone sulfur mixture is a fungicide used in agriculture made by boiling quicklime and sulfur with water. Among the many fungicides, stone sulfur mixture is widely used by the majority of fruit farmers because of its advantages of convenient material extraction, low cost, good effect, and inhibition of a variety of pathogens. However, due to the many boiling links of stone sulfur mixture, the mother liquor boiled by fruit farmers is too low, and many people only dilute it with water with experience and spray it, so that it cannot achieve the expected control effect.

Stone sulfur mixture is made by boiling quicklime, sulfur and water, and the best ratio of the three is 1:2:10.

When boiling, it is necessary to use a clay pot or a cast iron pot, and the use of copper or aluminum pot will affect the efficacy of the medicine.

The garden can be cleared with 5 Baumé stone sulfur mixture.

Stone sulfur mixture can be used, which mainly plays a protective role, and the effect of disease prevention is greater.

Although pesticides can control pests and diseases, but pesticide residues will also contaminate food to varying degrees, and can also cause pollution to the environment, coupled with the frequent use of pesticides, so that pests have developed resistance, resulting in the increase of the number of times and dosage of pesticides, and the pollution of the environment and the damage to the ecology are greater, thus forming a vicious circle of abuse of pesticides.

In early spring, it is necessary to prevent and control insect pests in time, and the tree body can be coated with a tree protection general, which can quickly form a layer of protective film, suffocating sterilization, prevention and control of a variety of cortical diseases, and can also play a role in heat preservation and anti-freezing.

In general, pear trees in nature are best treated with stone sulfur mixtures in early March, which is the period before the flowers and shoots of the pear trees bloom, and it is recommended that growers use stone sulfur mixtures in concentrations between three and five Baumés. Let's take a look at the relevant information of pear tree stone sulfur mixture.

1. The best time for pear tree to hit stone sulfur mixture.

In general, pear trees in nature are best treated with stone sulfur mixtures in early March, which is the period before the flowers and shoots of the pear trees bloom, and it is recommended that growers use stone sulfur mixtures in concentrations between three and five Baumés. It is worth noting that pear trees are fragile during this time period, so growers must use a lower concentration of stone sulfur mixture when applying stone sulfur mixture, otherwise pear trees will have serious flower burning; In general, growers spray 3 5 degrees of stone sulfur mixture, can achieve the best pest control effect.

Second, the technical points of pear tree stone sulfur mixture.

Normally, pear trees need to be sprayed with stone sulfur mixture three times a year; The first spray of stone sulfur mixture should be in mid to late March of each year; During this period, the temperature of the pear orchard for ten consecutive days was about 8 degrees Celsius, and the flowers and buds of the pear tree began to germinate; At this time, spraying stone sulfur mixture with a concentration of 5 degrees in the pear orchard can prevent and control the occurrence of pests and diseases such as two-spotted leaf mite, pear psyllid, Kang's mealybug, pear yellow mealyphid, ring disease, scab, rust and so on.

The second spray of stone sulfur should be in late April to early May every year, when about 90% of the pear blossoms have already withered; At this time, spraying stone sulfur mixture with a concentration of 5 degrees in the pear orchard can prevent and control the occurrence of pests and diseases such as mealybug, pear psyllid, pear fruit bee, leaf mites, pear heartworms, pear stem wasps, aphids and other pests and diseases to a certain extent. The grower's third spray of stone sulfur should be at the end of May to the beginning of June each year; At this time, spraying stone sulfur mixture with a concentration of 5 degrees in the pear orchard can prevent and control the occurrence of pests and diseases such as Kang's mealybug, pear heartworm, leaf mites, pear bifurcation aphid, and pear psyllids to a certain extent.

Pear tree in the growth of the use of drug spraying, can effectively prevent and control the harm of pests and diseases, generally in the spring stone sulfur mixture is the best, this is the pear tree flower bud differentiation stage, and poured into the liquid mainly dilution, mainly split Xiang in the germination of half a month before the best application, should be sooner rather than late, so that the effect will be better.

In order to avoid the invasion of pests and diseases in the growth process of pear trees, it is appropriate to hit stone sulfur mixture to the plant to prevent the harm of diseases and insects.

At this time, it is more suitable to give pear trees stone sulfur mixture, which can effectively prevent the harm of pests and diseases, and is conducive to the flowering and fruiting of plants, but it is mainly based on thin solution, otherwise it will affect the growth and development of flower buds.

At the same time, the pear tree is in the dormant period in winter, at this time the respiration of the root system slows down, at this time you can properly spray the appropriate amount of stone sulfur diluent, which can effectively prevent and control the fungus in the fruit tree for winter, in order to increase the resistance of the root system, the time interval is about 1 2 weeks, not too much, otherwise it will affect the growth of flower buds.

At the same time, when the pear tree is growing, the diluted stone sulfur mixture dilution can be sprayed on the plant regularly, but the concentration of the liquid medicine should not be too high in summer, so as to effectively prevent powdery mildew, rust, aphids, mites, scale insects and other hazards.

Pear tree in the growth period of the use of drug spraying, can effectively prevent and control the harm of pests and diseases, generally in the spring stone sulfur mixture is the best, this is the pear tree flower bud differentiation stage, and poured into the liquid medicine is mainly diluent-based, mainly in the germination of half a month before the best application, should be early rather than late, so that the effect will be better.

In order to avoid suffering from pests and diseases in the growth process of pear trees, it is appropriate to hit stone sulfur mixture to the plant to prevent the harm of diseases and insects.

At this time, it is more suitable to give pear trees stone sulfur mixture than cracked auspicious, which can effectively prevent the harm of pests and diseases, and is conducive to the flowering and fruiting of plants, but it is mainly based on thin rampant attack solution, otherwise it will affect the growth and development of flower buds, mainly in the first half of the month before germination to apply the best, it should be sooner rather than later, so that the effect of controlling diseases and insects will be better.

At the same time, the pear tree is in the dormant period in winter, at this time the respiration of the root system slows down, at this time you can properly spray the appropriate amount of stone sulfur diluent, which can effectively prevent and control the fungus in the fruit tree for winter, in order to increase the resistance of the root system, the time interval is about 1 2 weeks, not too much, otherwise it will affect the growth of flower buds.

At the same time, when the pear tree is growing, the diluted stone sulfur mixture dilution can be sprayed on the plant regularly, but the concentration of the liquid medicine should not be too high in summer, so as to effectively prevent powdery mildew, rust, aphids, mites, scale insects and other hazards.

The pear tree is made of stone sulfur mixture, and it can be watered for a few days.

The watering operation of pear tree stone sulfur mixture is recommended to be carried out in the pear tree germination period (mid to late March), you can water the early ridge water once every 2-3 days, and the amount of water should not be too much each time, generally the amount of watering is controlled at about 7-10 kg, and after watering, it is necessary to timely stir and adjust the soil moisture degree of the roots of the pear tree to ensure the effectiveness of absorbing and dispersing the stone sulfur mixture.

Summary. Dear, it's a pleasure for you on March 21, can you still play the pear tree stone sulfur mixture? According to the growth habits of pear trees and the occurrence of pests and diseases, it is generally recommended to spray stone sulfur mixture before flowering in spring or after leaf fall in autumn.

If it is already March 21, it may be close to or has already begun to bloom, and it is not recommended to spray with stone sulfur mixture at this time. This is because the use of pesticides during the flowering period of pear trees can cause harm to beneficial insects such as bees, and it is also easy to cause problems such as deformation and quality of fruits. If you really need to control pests and diseases, you can choose other pesticides that are suitable for the flowering period and use them correctly according to the instructions on the instructions.

At the same time, be sure to read the product label and instructions carefully and follow the safe operating procedures before using any pesticides. Thank you for your patience, I hope mine is helpful to you, if you are satisfied, please give me a thumbs up and wish you a happy life.

Dear, it's a pleasure for you on March 21, can you still play the pear tree stone sulfur mixture? According to the growth habit of pear trees and the occurrence of diseases and insect pests, it is generally recommended to spray stone sulfur mixture before opening bench flowers in spring or after falling leaves in autumn. If it is already March 21, it may be close to or has already begun to bloom, and it is not recommended to spray with stone sulfur mixture at this time.

The use of pesticides during the flowering period of pear trees can cause harm to beneficial insects such as bees, and can also easily lead to problems such as fruit deformation and quality loss. If you really need to control pests and diseases, you can choose other pesticides that are suitable for the flowering period and use them correctly according to the instructions on the instructions. At the same time, before using any pesticides, please be sure to read the product label and instructions carefully and follow the safe operating procedures.

Thank you for your patience, I hope mine is helpful to you, if you are satisfied, please give me a thumbs up and wish you a happy life.

Can the concentration of stone sulfur agent 2-3 degrees left in the peach tree be beaten?

Dear, it's a pleasure to hit the peach tree with the remaining stone sulfur concentration of 2-3 degrees, can you play? The concentration of the leftover stone sulfur agent is 2-3 degrees can be used, but the following points need to be noted: 1

It means that the sulfur agent has not expired or deteriorated. 2.Stir well before use to ensure consistent concentration.

3.When using, dilute and spray according to the instructions on the lead label. Also, if you're not sure how to use this chemical properly, consult a professional or agricultural technician.

Thank you for your patience, I hope mine is helpful to you, if you are satisfied, please give me a thumbs up and wish you a happy life.

Hello, dear and happy: bean pear trees to bloom can not be sprayed with stone sulfur mixture. Plants of the Rosaceae and leguminous family such as plum blossoms, peach trees, pear trees, and plum trees cannot use stone sulfur mixtures.

The use of stone sulfur mixture during the growth period and flowering period will inhibit the differentiation and growth of flower buds and delay the flowering time. When peach trees are infested by Moju red spiders, spraying stone sulfur mixture will cause leaf rot and wilt. At this time, the concentration of spraying stone sulfur mixture must be reduced, otherwise it is easy to burn.

The stone sulfur mixture with spraying degree is more suitable. Remember to spray stone sulfur mixture early next year, and spray 3 5 degrees of stone sulfur mixture about half a month before germination, and the effect of pest control is better. I wish you a happy life!

Hope mine is helpful to you ha.

Hello, I'm glad to answer for you: pear draft finch tree autumn insect pests to fight sulfur phosphorus emulsifiable pesticide golden autumn pear pests, mainly pear rust, available 1:2-3:

Imitation destruction of 200 times Bordeaux liquid sprayed when the pear tree begins to sprout and spread leaves; In the early stage of the disease, spray 50 methyl tobuzin 700 times into 25 carbendazim 500 times; After the pear tree is flowering, spray 1:2:200-240 times Bordeaux liquid.

During the rainy period, spray 1:2:200 times Bordeaux liquid in a timely manner according to the situation; pear stem wasp, spray 50 parathion 2000 times liquid at the early flowering stage; Pear star caterpillar, in the overwintering larvae sting, budding damage period, spray key 50 parathion EC 2000 times in the morning.

When the insect infestation is serious, spray the same concentration of agent after flowering; Pear psyllid, before the overwintering generation of adults to lay eggs, spray 50 p-thion emulsifiable concentrate 1000 times, stinging moth and pear leaf roller moth, in the larval occurrence stage, spray 80 dichlorvos emulsion 1000 times. During the adult stage, light trapping is carried out.