CN105145244A - Method for controlling physalospora piricola nose of apple trees - Google Patents

Abstract

The invention discloses a method for controlling physalospora piricola nose of apple trees, belongs to the field of methods for controlling diseases of fruit trees, and aims to provides a method being convenient and easy to operate, low in cost, and good in disease resistance for controlling diseases of apple trees. The method includes scraping burls and old raised barks on a trunk after leaves fall in autumn, and coating 5 Be lime sulphur on scraped portions; coating 5Be lime sulphur on the scraped portions again in next spring; spraying a bordeaux mixture and 0.2 Be lime sulphur in an alternating mode after flowers on the apple trees fall until the first ten-day period of September, wherein the interval time between spraying of the bordeaux mixture and spraying of the 0.2 Be lime sulphur is 15 to 20 days. The lime sulphur is boiled by the following raw materials, by weight, 1 part of calcium oxide, 10 parts of sulphur and 100 parts of water. By using the method for controlling physalospora piricola nose of apple trees, diseases do not generate resistance, the effective rate of disease resistance and pest killing reaches up to approximately 90%. The invention provides the method for controlling physalospora piricola nose of apple trees.

Description

The method of control apple tree ring spot

Technical field

The present invention relates to a kind of method of preventing and treating fruit diseases, particularly relate to a kind of method of preventing and treating apple tree ring spot.

Background technology

Ring rot of apple can endanger limb at different levels and the fruit of apple tree.On limb, sick is just centered by hole skin, form bronzing scab, and later stage scab center protrusion is warty, crack at edge, tilts in the shape of a saddle.After many scabs are connected, limb epidermis seems very coarse, therefore also known as scurf.On fruit, start morbidity close to time ripe, picking time seriously occurs, and shelf time continues to occur.Classical symptom on fruit is centered by hole skin, form subcircular brown scab, causes fruit rot time serious.

Apple tree is the seeds occurred frequently of ring spot, can bring huge economic loss to orchard worker.This germ survives the winter in diseased tissues with mycelium, pycnidium, the Main Bacteria source being primary infection and infecting continuously.Come into play spring, propagate on branch with wind and rain.At the fruit growth initial stage, because there being various defense mechanism, germ cannot be infected.After fruit expanding period, germ all can invade; Wherein infect at most to early August from mid-July.The germ of infecting branch is generally infected from hole skin from May, and progressively centered by hole skin, forms new scab, and next year, scab continued to expand, and formed disease knurl, and multiple sick knurl joins together and then cashes as tertia.The fruit of tree crown periphery and the good hillside of illumination, morbidity is early; Thorax fruit in tree crown, the orchard that illumination is bad, fruit morbidity is relatively late.Temperature is higher than 20 DEG C, and relative moisture is higher than 75% or continuously rainfall, and when rainfall reaches more than 10mm, be conducive to germ reproduction and field asks that spore scatters in a large number and invades, disease seriously occurs.The orchard that intermountain prevents wind from passing through, air humidity is large, night easily condenses, faces south compared with hillside fields, the morbidity of orchard that ventilation and penetrating light is good is many; Newly built orchard at the lower wind direction in seriously ill old orchard, from must more close to, fall ill more.Orchard management is poor, and tree vigo(u)r is weak, heavily glutinous loam and red clay, the plant susceptible disease on Acid soil, and the limb seriously caused harm by insect or fruit morbidity weigh.

At present, carbendazim, curing medicine, polyoxin etc. is usually adopted to prevent and treat, although there is certain effect; But to the lethality of scab, coerce scab dehydration, promote that the aspects such as disease portion new tissue growth are unsatisfactory.

Summary of the invention

In order to overcome the defect existed in prior art, the present invention aims to provide a kind of method of simple to operation, with low cost, control apple tree ring spot that disease-resisting, insecticidal is effective.

To achieve these goals, technical scheme of the present invention is as follows:

1) scraping off the sick knurl on limb after fall foliage and always stick up skin, then brushing one times striking off position painting with the lime sulfur of 5Be;

2) lime sulfur again with 5Be before germinateing spring in the coming year brushes one times striking off position painting;

3) apple alternately sprays the lime sulfur of bordeaux mixture and 0.2Be after thanking and spending, and the interval time of bordeaux mixture and lime sulfur is 15 ~ 20 days, terminates to early September;

Described lime sulfur is boiled by the raw material of following weight portion and forms: quicklime 1 part, 10 parts, sulphur, 100 parts, water.

Compared with the prior art, the present invention, owing to have employed technique scheme, adopts lime sulfur brushing to strike off position, therefore can reduce harmful levels of pathogens and infect wound, prevent the generation of rot, canker.In addition, because lime sulfur and your many liquid are used alternatingly, disease therefore can not be made to develop immunity to drugs.3rd, (within 7 ~ 10 days, reach optimum medicine efficacy) about the sustainable first quarter moon of lime sulfur drug effect, therefore disease-controlling effect is good; Moreover, after lime sulfur decomposes, its effective ingredient can play sterilization, acaricidal action, and its residual fraction is the compound of the element such as calcium, sulphur, all can be absorbed by the fruit of plant, leaf, and become the necessary moderate-element of plant growth.The inventive method, simple to operate, with low cost, disease-resisting, insecticidal is efficient reaches about 90%.

Embodiment

Below in conjunction with specific embodiment, the invention will be further described:

1) scraping off the sick knurl on limb and always stick up skin after falling leaves in the fall, then brushing one times striking off position painting with the lime sulfur of 5Be;

2) lime sulfur again with 5Be before germinateing spring in the coming year brushes one times striking off position painting;

3) apple alternately sprays the lime sulfur of bordeaux mixture and 0.2Be after thanking and spending, and the interval time of bordeaux mixture and lime sulfur is 15 ~ 20 days, terminates to early September;

Described lime sulfur is boiled by the raw material of following weight portion and forms: quicklime 1 part, 10 parts, sulphur, 100 parts, water.

The boiling method of lime sulfur is as follows:

1) 1Kg quicklime powder is put into iron pan, the water that takes a morsel from 100Kg water makes quicklime clear up, and then adds the mixing of remaining water;

2) by quicklime liquid heating boiled, leach bits;

3) Cosan is modulated into pasty state by the boiled lime liquor that takes a morsel, and then slowly pours into from pot limit, uniform stirring;

4) infusion again 40 ~ 60 minutes is continued to be heated to after boiling; In infusion process, at the truce first 15 minutes moisture by hot water replenish lost

5) cold filtration or precipitation, clear liquid is lime sulfur.

Claims (1)

1. prevent and treat a method for apple tree ring spot, it is characterized in that method is as follows:

1) scraping off the sick knurl on limb after fall foliage and always stick up skin, then brushing one times striking off position painting with the lime sulfur of 5Be;

2) lime sulfur again with 5Be before germinateing spring in the coming year brushes one times striking off position painting;

3) apple alternately sprays the lime sulfur of bordeaux mixture and 0.2Be after thanking and spending, and the interval time of bordeaux mixture and lime sulfur is 15 ~ 20 days, terminates to early September;

Described lime sulfur is boiled by the raw material of following weight portion and forms: quicklime 1 part, 10 parts, sulphur, 100 parts, water.