CN103782848B - A kind of method preventing and treating Fructus Ananadis comosi blight - Google Patents

Abstract

The present invention relates to a kind of method preventing and treating Fructus Ananadis comosi blight, in the Fructus Ananadis comosi red autumnal leaves phase, make with medicament spray 2-3 time continuously; Or make with medicament carry out 45-55ml/ strain filling heart process; Described medicament is 0.1-0.5% borax solution, or 0.3%-1% potassium dihydrogen phosphate and 0.1-0.5% borax solution. Using before low temperature arrives, preventive effect is especially pronounced. Inventive formulation is simple, and preventive effect is notable, and disease leaf can be made after spraying to turn green, and diseased plant restore normal growth growth, and preventive effect is close to 100%.

Description

A kind of method preventing and treating Fructus Ananadis comosi blight

Technical field

The present invention relates to Fructus Ananadis comosi disease prevention techniques field, specifically a kind of method preventing and treating Fructus Ananadis comosi blight.

Background technology

Fructus Ananadis comosi blight is also known as red-leaf disease or Fructus Ananadis comosi pestilence, and Brazil is called fusarium wilt, is a kind of destructive disease. After nineteen twenty-nine Hawaii, America is reported, all there is generation each Fructus Ananadis comosi major production areas, the world, and also there is generation in the Guangxi of China, Fujian, Hainan and Taiwan. This sick its spread in china rapidly of arid season, general sickness rate about 25-30%, second crop soil sickness rate is up to 50%, and serious sick garden diseased plant is even as high as 70-90%.

The cause of disease dispute of Fructus Ananadis comosi blight is very big, it is believed that be that pineapple mealy bug is caused harm, and the mealybug infectious disease viral disease that mealybug excretes poison caused; Somebody thinks fungus sexually transmitted disease (STD) evil, also it is believed that be physiological disturbance. Fructus Ananadis comosi blight, up to the present but without effectively preventing measure, has become as Fructus Ananadis comosi and produces biggest threat.

Summary of the invention

The technical problem to be solved is in that, for above-mentioned prior art, it is provided that the prevention and controls of a kind of Fructus Ananadis comosi blight, it is achieved prevent and treat Fructus Ananadis comosi blight simple, effective, time saving and energy savingly.

This invention address that above-mentioned technical problem is adopted the technical scheme that: a kind of method preventing and treating Fructus Ananadis comosi blight, in the Fructus Ananadis comosi red autumnal leaves phase, make with medicament spray 2-3 time continuously; Or make with medicament carry out 45-55ml/ strain filling heart process;

Described medicament is 0.1-0.5% borax solution, or 0.3%-1% potassium dihydrogen phosphate and 0.1-0.5% borax solution.

Using before low temperature arrives, preventive effect is especially pronounced.

Inventive formulation is simple, and preventive effect is notable, and disease leaf can be made after spraying to turn green, and diseased plant restore normal growth growth, and preventive effect is close to 100%.

Detailed description of the invention

Below in conjunction with specific embodiment, technical scheme and technique effect are described further.

1. the pathogenic factor research of Fructus Ananadis comosi blight

Inventor is through participating in repeatedly the analysis forum of Fructus Ananadis comosi disease survey, carrying out repeatedly investigation and sampling analysis, it has been found that:

(1) the wilting pathogenetic exopathogenic factor of Fructus Ananadis comosi

Weather high temperature and drought and low temperature overcast and rainy day, affect Fructus Ananadis comosi root development, and withered or rotten of hydropenia, thus affecting Nutrient Absorption further.

Soil glues heavy or that nutrient is barren sand soil, gravel soil, the new subsoil opened up wasteland and washes away the Fructus Ananadis comosi of plantation on serious steep hillslope, and rotten of easy hydrops or hydropenia are withered, and therefore, soil nutrient famine is the wilting pathogenetic another exopathogenic factor of Fructus Ananadis comosi.

(2) the wilting pathogenetic endogenous cause of ill of Fructus Ananadis comosi

The sampled analysis of inventor, carries out the assay of nutrient to the soil on the Fructus Ananadis comosi ground of Nanning garden spot and north lake garden spot and pineapple leaves, and measurement result is as follows:

Analyze after measured, Mo and the SiO in the soil on the Fructus Ananadis comosi ground of above-mentioned two garden spot and pineapple leaf₂In equal size, diseased plant and healthy tree are not clearly distinguished from.

And during B content is measured, diseased plant and healthy tree existence are clearly distinguished from, concrete outcome is as shown in table 1.

Table 1B assay result

From this measurement result it can be seen that Fructus Ananadis comosi blight is unbalance between nutrient in Fructus Ananadis comosi plant, the especially disappearance of micronutrient boron, cause caused by plant physiology boron deficiency.

2. the controlling experiment of Fructus Ananadis comosi blight

Inventor carries out experimental field going up of pineapple's black heart disease preventing and treating on the thin and weak red earth cubsoil that Guangxi University is newly bulldozed, Philippine Fructus Ananadis comosi starts to face arid in JIUYUE then, until December observes five pieces of Fructus Ananadis comosi plant experimental field on 16th, most chlorisis turns red, and respectively diseased plant is analyzed with normal strain collection soil sample and plant leaf the January 18 of next year, result is as shown in table 2.

Measuring and Ca/B (accounting for dry matter weight) containing B in the soil of table 2 Fructus Ananadis comosi blight and blade

Analyzing it is shown that pineapple leaf boron content is typically in below 20mg/kg, be below greatly appropriate index, tracing it to its cause is that Effective Boron of Soil content is not enough. Soil fundamental analysis, Effective Boron of Soil is 0.19mgk/g only. Fill the heart owing to once carrying out borax solution before sampling, and cause Effective Boron of Soil generally all to bring up to appropriate scope. But due to arid, plant is difficult to absorb, plant Boron contents is caused not reach appropriate index yet. As for normal strain intra vane boracic lower than diseased plant, then " dilution effect " that formed with Fructus Ananadis comosi normal growth has certain relation.

Following medicament is sprayed continuously 3 times in the above Fructus Ananadis comosi red autumnal leaves phase experimental field:

(1) 0.1% borax solution;

(2) 0.3% borax solutions;

(2) 0.5% borax solutions;

(4) 0.3% potassium dihydrogen phosphates and 0.5% borax solution;

(5) 1% potassium dihydrogen phosphates and 0.1% borax solution.

Blank comparison, and rear viewing test is it was found that except blank, above-mentioned pineapple leaf experimental field take off gradually red turn green, growth promoter recovers normal gradually, with the Fructus Ananadis comosi not fallen ill compared with, yield is completely uninfluenced, and the prevention effect of Fructus Ananadis comosi blight is close to 100%.

During above-mentioned experimental field large-area Fructus Ananadis comosi blight is fallen ill, wilting diseased plant is carried out carefully detailed coccid investigation by inventor, find no coccid and the Fructus Ananadis comosi plant caused harm by coccid, hence it is demonstrated that, Fructus Ananadis comosi blight is sheerly unbalance by Ca/B in plant body, the physiology boron deficiency disease occurred when the many boron of calcium is few.

Use above-mentioned medicament to carry out 45-55ml/ strain and fill heart process, can reach to be close to the prevention effect of 100% equally.

Claims (2)

1. the method preventing and treating Fructus Ananadis comosi blight, it is characterised in that in the Fructus Ananadis comosi red autumnal leaves phase, make with medicament spray 2-3 time continuously; Or make with medicament carry out 45-55ml/ strain filling heart process;

Described medicament is 0.1-0.5% borax solution, or 0.3%-1% potassium dihydrogen phosphate and 0.1-0.5% borax solution.

2. the method for preventing and treating Fructus Ananadis comosi blight according to claim 1, it is characterised in that described medicament uses before low temperature arrives.