CN103980053A

CN103980053A - Green pesticide used for preventing and controlling rice sheath blight disease and preparation method thereof

Info

Publication number: CN103980053A
Application number: CN201410235539.5A
Authority: CN
Inventors: 王占友; 刘涛; 李依妮; 杨丽红; 李先霞; 魏广美; 武玉涛; 王晓军
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-24
Filing date: 2014-05-24
Publication date: 2014-08-13
Anticipated expiration: 2034-05-24
Also published as: CN103980053B

Abstract

The invention discloses green pesticide used for preventing and controlling rice sheath blight disease. The green pesticide used for preventing and controlling the rice sheath blight disease is prepared from the following Chinese herbal medicines with sterilization, deinsectization and detoxification functions: buddleja myriantha, alchornea davidii, macleaya cordata, actinodaphne cupularis gamble, swamp mahogany leaf, bark of Chinese catalpa, myrcia tree, lysimachia foenum-graecum hance and desert asparagus. The green pesticide used for preventing and controlling the rice sheath blight disease has good control efficiency on the rice sheath blight disease, a field contrast test shows that the control efficiency is 80.1% and is obviously better than 60.9% of a contrast group, a yield increasing effect is obvious, and the green pesticide used for preventing and controlling the rice sheath blight disease has the advantages of environmental friendliness, safety, ecology and simple compatibility of medicines.

Description

A kind of environment friendly agricultural of preventing and treating rice sheath blight disease and preparation method thereof

Technical field

The invention belongs to technical field of pesticide, specifically relate to a kind of environment friendly agricultural of preventing and treating rice sheath blight disease and preparation method thereof.

Background technology

Rice sheath blight disease claims again moire disease, is one of paddy rice three large diseases.In recent years, due to excessive applied nitrogen etc., the generation area of rice sheath blight disease expands gradually, and hazard rating also increases the weight of day by day, and wherein south China, Central China and East China Dao Qu occur particularly serious; Cause harm seriously in North China, northeast and partial area, rice in Yunnan district.Become at present the major obstacle of China's rice high yield, stable yields.Current, for effectively controlling the generation of rice sheath blight disease, mainly use the preparations such as jingganmycin medicament, the state of an illness has effectively been controlled in the use of this type of agricultural chemicals, has improved the output of paddy rice, to guaranteeing that the high yield good harvest of paddy rice provides assurance.Yet, raising along with level of agricultural production, agricultural chemicals dirt is day by day serious, its former medicine and degradation product remaining in environment makes residual increase in agricultural byproducts, indirectly cause the pollution of food, directly endangered the mankind's healthy and existence, destroyed ecotope, improve pathogen resistance and huge a series of global problems such as agricultural losses, caused showing great attention to of countries in the world government and the people.

Environment friendly agricultural is safe and harmless to human health, environmentally friendly, ultralow consumption, highly selective, and produce by friendly process flow process, environment friendly agricultural of the present invention is comprised of multiple herbal medicine, by simple technical process, extracts effective active matter, the effect that makes to prevent and treat rice sheath blight disease is remarkable, safe and reliable.

Summary of the invention

The object of the invention is to provide that a kind of it is good that it has prevention effect for preventing and treating the environment friendly agricultural of rice sheath blight disease, environmental protection, safety is ecological, the simple advantage of compatibility.

Prevent and treat an environment friendly agricultural for rice sheath blight disease, it is prepared by the raw material of following parts by weight: orangeeye butterflybush branchlet and leaf or root-bark 5-7 part, Cortex Alchorneae Davidii 2-4 part, Pink Plumepoppy Herb 3-5 part, Root of Redfruit Actionodaphne 2-4 part, Swamp Mahogany Leaf 5-7 part, Root-bark of Ovate Catalpa 2-6 part, Cortex Seu Folium Linderae 5-7 part, Herba Anaphalidis Hancockii 3-7 part, Herba asparagi gobici 1-3 part.

Preferably, 6 parts of orangeeye butterflybush branchlet and leaf or root-barks, 3 parts of Cortex Alchorneae Davidii, 4 parts of Pink Plumepoppy Herb, 3 parts of Root of Redfruit Actionodaphne, 6 parts of Swamp Mahogany Leafs, 4 parts of Root-bark of Ovate Catalpa, 6 parts of Cortex Seu Folium Linderae, 5 parts of Herba Anaphalidis Hancockiis, 2 parts of Herba asparagi gobicis.

Preparation method: the above herbal raw material taking is dried, chopping, after mixing, 70% alcohol reflux that at every turn adds 30 times of amounts of medicinal material total amount, refluxes twice, each 3 hours, merge alcohol extract, through 0.08Mpa, 60 ℃, be evaporated to the medicinal extract that relative density is 1.6 under the condition of 65 ℃, spraying is dry, obtains dry extract.

Beneficial effect: in prescription, contained herbal medicine all has the function of disinfection and deinsectization removing toxic substances, rice sheath blight disease is had to good prevention effect, other activeconstituentss that herbal medicine contains, except having pharmaceutical use, are also rich in multiple nutrients material, and the growth of paddy rice is had more to benefit.The present invention is safer to people and animals, and to eyes, skin nonirritant, toxicity is lower, in atmosphere and soil, easily decomposes, and non-poisonous material is residual; The present invention is little on the impact of farmland natural enemy, contributes to keep ecotope, more friendly to environment.Environment friendly agricultural of the present invention directly extracts from herbal medicine, and production technique is simple, and flow process is short; Greatly reduce production cost, easily industrialization, economic benefit is high.

Field test data

Physical data: test is located in the rice high yield model field of Yinan County, Linyi to be carried out, experimental field front stubble is wheat, and physical features is smooth, and rice field rich water quality management is good.During medication, the field water sheath and culm blight of rice occurs more serious.

Two processing are established in test altogether: test group is used biological pesticide of the present invention, take orangeeye butterflybush branchlet and leaf or root-bark 6kg, Cortex Alchorneae Davidii 3kg, Pink Plumepoppy Herb 4kg, Root of Redfruit Actionodaphne 3kg, Swamp Mahogany Leaf 6kg, Root-bark of Ovate Catalpa 4kg, Cortex Seu Folium Linderae 6kg, Herba Anaphalidis Hancockii 5kg, Herba asparagi gobici 2kg, the above herbal raw material taking is dried, shred after mixing, 70% alcohol reflux that at every turn adds 30 times of amounts of medicinal material total amount, reflux twice, each 3 hours, merge alcohol extract, through 0.08Mpa, 60 ℃, be evaporated to the medicinal extract that relative density is 1.6 under 65 ℃ of conditions, spraying is dry, obtains dry extract.Control group is used 20% jingganmycin wettable powder.

Two groups of application methods all adopt foliage spray.Paddy rice pulvinus is the 1st dispenser at ordinary times, the 2nd dispenser of full heading time, and test group is used 300 times of diluent 30kg of herbal medicine environment friendly agricultural of the present invention; 20% jingganmycin wettable powder 20g for control group, is watered 30kg spraying.Two groups spray rice area and are 667m ², in after dispenser 24 hours, meet rainy need to filling spray.

Below experimental result:

Table 1 test group and control group field efficacy

Table 2 test group and the comparison of control group stimulation ratio

Process	Average disease refers to (%)	Stimulation ratio (%)
			Test group	20.1	16.1
Control group	19.7	9.9
			Relatively	Without significant difference	Significant difference

Evidence biological pesticide of the present invention has good result for the treatment of to rice sheath blight disease, and has significantly improved the output of paddy rice.

Embodiment

Embodiment 1: take orangeeye butterflybush branchlet and leaf or root-bark 6kg, Cortex Alchorneae Davidii 3kg, Pink Plumepoppy Herb 4kg, Root of Redfruit Actionodaphne 3kg, Swamp Mahogany Leaf 6kg, Root-bark of Ovate Catalpa 4kg, Cortex Seu Folium Linderae 6kg, Herba Anaphalidis Hancockii 5kg, Herba asparagi gobici 2kg.After the above herbal medicine taking is mixed, add 70% alcohol reflux of 30 times of amounts of medicinal material total amount at every turn, reflux twice, each 3 hours, merge alcohol extract, the medicinal extract that relative density is 1.6 when 0.08Mpa, 60 ℃ are evaporated to 65 ℃, spraying is dry, obtains dry extract.

Embodiment 2: take orangeeye butterflybush branchlet and leaf or root-bark 7kg, Cortex Alchorneae Davidii 2kg, Pink Plumepoppy Herb 5kg, Root of Redfruit Actionodaphne 2kg, Swamp Mahogany Leaf 7kg, Root-bark of Ovate Catalpa 2kg, Cortex Seu Folium Linderae 7kg, Herba Anaphalidis Hancockii 3kg, Herba asparagi gobici 3kg, after the above herbal medicine taking is mixed, 70% alcohol reflux that at every turn adds 30 times of amounts of medicinal material total amount, reflux twice, each 3 hours, merge alcohol extract, the medicinal extract that relative density is 1.6 when 0.08Mpa, 60 ℃ are evaporated to 65 ℃, spraying is dry, obtains dry extract; .

Embodiment 3: take orangeeye butterflybush branchlet and leaf or root-bark 5kg, Cortex Alchorneae Davidii 4kg, Pink Plumepoppy Herb 3kg, Root of Redfruit Actionodaphne 4kg, Swamp Mahogany Leaf 5kg, Root-bark of Ovate Catalpa 6kg, Cortex Seu Folium Linderae 5kg, Herba Anaphalidis Hancockii 7kg, Herba asparagi gobici 1kg, after the above herbal medicine taking is mixed, 70% alcohol reflux that at every turn adds 30 times of amounts of medicinal material total amount, reflux twice, each 3 hours, merge alcohol extract, the medicinal extract that relative density is 1.6 when 0.08Mpa, 60 ℃ are evaporated to 65 ℃, spraying is dry, obtains dry extract.

Claims

1. prevent and treat an environment friendly agricultural for rice sheath blight disease, it is characterized in that it is prepared by the raw material of following parts by weight: orangeeye butterflybush branchlet and leaf or root-bark 5-7 part, Cortex Alchorneae Davidii 2-4 part, Pink Plumepoppy Herb 3-5 part, Root of Redfruit Actionodaphne 2-4 part, Swamp Mahogany Leaf 5-7 part, Root-bark of Ovate Catalpa 2-6 part, Cortex Seu Folium Linderae 5-7 part, Herba Anaphalidis Hancockii 3-7 part, Herba asparagi gobici 1-3 part.

2. a kind of environment friendly agricultural of preventing and treating rice sheath blight disease as claimed in claim 1, is characterized in that it is prepared by the raw material of following parts by weight: 6 parts of orangeeye butterflybush branchlet and leaf or root-barks, 3 parts of Cortex Alchorneae Davidii, 4 parts of Pink Plumepoppy Herb, 3 parts of Root of Redfruit Actionodaphne, 6 parts of Swamp Mahogany Leafs, 4 parts of Root-bark of Ovate Catalpa, 6 parts of Cortex Seu Folium Linderae, 5 parts of Herba Anaphalidis Hancockiis, 2 parts of Herba asparagi gobicis.

3. a kind of preparation method who prevents and treats the environment friendly agricultural of rice sheath blight disease as claimed in claim 1, it is characterized in that the above herbal raw material taking to dry, chopping after mixing, adds 70% alcohol reflux of 30 times of amounts of medicinal material total amount at every turn, reflux twice, each 3 hours, merge alcohol extract, through 0.08Mpa, 60 ℃, be evaporated to the medicinal extract that relative density is 1.6 under the condition of 65 ℃, spraying is dry, obtains dry extract.