CN112568241A - Granular insecticide and its preparing process - Google Patents
Granular insecticide and its preparing process Download PDFInfo
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- CN112568241A CN112568241A CN202011616948.1A CN202011616948A CN112568241A CN 112568241 A CN112568241 A CN 112568241A CN 202011616948 A CN202011616948 A CN 202011616948A CN 112568241 A CN112568241 A CN 112568241A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N53/00—Biocides, pest repellants or attractants, or plant growth regulators containing cyclopropane carboxylic acids or derivatives thereof
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The invention relates to an insecticidal granule, comprising: phase A component: green muscardine fungus mother powder with 100 hundred million/g activity, B phase component: the functional mother powder or mother liquor of active ingredients of a pesticide, wherein the pesticide comprises one or more of chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin and chlorfenapyr; c phase component: the bio-based high polymer material chitosan-calcium carbonate particles comprise a phase D component: functional adhesive slurry. The invention avoids the problems of particle sticking, difficult drying and the like caused by more material quantity and slurry quantity in the preparation of granules with higher content, and the coating is divided into three times, so that the original medicine is more uniformly coated and is easy to dry, the drying process is omitted, and the energy consumption is saved; the coating process adopts the coating sequence of biological bacteria powder-chemical pesticide mother liquor or mother powder, so that the quick action is better and the lasting period is long.
Description
Technical Field
The invention belongs to the field of pesticide processing, relates to a granule processing technology, and particularly relates to an insecticidal granule and a preparation process thereof.
Background
Metarhizium anisopliae is a broad spectrum entomopathogenic bacterium, and can parasitize tortoise shell, weevil, wireworm, lepidoptera pest larva, hemiptera stinkbug and the like. The Metarhizium anisopliae has variants such as Metarhizium anisopliae and Metarhizium flavum, and is mainly produced by using a preparation of the variant of the Metarhizium anisopliae to control pests such as underground pests, trunk-boring pests, peach fruit borers, coconut leaf beetles, locusts, cabbage diamondback moths, cabbage caterpillars and tomato bollworms, and sanitary pests such as mosquito larvae in small water bodies. From the scale of prevention and treatment, metarhizium anisopliae develops into a fungal pesticide second only to beauveria bassiana. The Metarrhizium anisopliae is harmless to human and livestock, safe to natural enemy insects, and free of environmental pollution.
The biological agent has slightly poor quick-acting property compared with the pesticide ingredients, and the quick-acting property and the lasting period of the biological agent can be improved by compounding the biological agent and the pesticide ingredients. The invention prepares granules by compounding metarhizium anisopliae with chemical pesticides such as chlorbenzuron, spinetoram, spirotetramat and the like, and the granules are applied to controlling pests such as thrips, plutella xylostella, aphids, pod borers, leaf miners and the like on crops.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides an insecticidal granule and a preparation process thereof.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
an insecticidal granule, comprising the following components:
phase A component: the green muscardine fungus mother powder has the fungus powder activity of 100 hundred million/g of spore powder, and accounts for 1 to 30 percent by mass;
b phase component: the functional mother powder or mother liquor of the active ingredients of the pesticide accounts for 1 to 30 percent by mass, and the pesticide comprises one or more of chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin and chlorfenapyr;
c phase component: the biological-based high polymer material chitosan-calcium carbonate particle carrier accounts for 60-95% of the mass percentage;
and (3) phase D component: the functional bonding pulp accounts for 0.2-50% by mass, and comprises sucrose, starch, beef extract and warning color.
In addition, the metarhizium anisopliae mother powder in the phase A component and the phase B component and the functional mother powder or mother liquor of the pesticide active ingredients are mixed or ground with functional auxiliaries, and the functional auxiliaries comprise one or more of a binder, a water reducing agent, a dispersing agent, a wetting agent, an inducer and a warning color.
A preparation process of an insecticidal granule comprises the following specific steps:
the method comprises the following steps: preparing functional mother powder of phase A component: firstly, mechanically crushing or air-jet crushing the metarhizium anisopliae powder and peptone to obtain raw medicine fine powder with the particle size of 300 plus 350 meshes, and then taking 5-90% of the metarhizium anisopliae powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 30 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent; 0.1-2% of white carbon black; complementing the peptone, placing in a gravity-free mixer for weight loss mixing to obtain functional mother powder for later use;
step two: preparing phase B component functional mother powder or mother liquor;
step three: preparing a bio-based high polymer material chitosan-calcium carbonate carrier: uniformly mixing and crushing chitosan, citric acid and white carbon black in an ultrafine crusher according to the percentage of 90-95:1-4:1-9 to prepare 95% chitosan mother powder for later use, crushing and mixing the 95% chitosan mother powder and light calcium carbonate in the ultrafine crusher according to the proportion of 1:1, adding purified water into an extrusion granulator to granulate, wherein the particle size is 0.3-1.0 mm;
step four: preparing granules by a dry method or a wet method;
step five: and preparing a finished product.
Moreover, the method for preparing the phase B functional mother powder comprises the following steps: firstly, mechanically crushing or airflow crushing active ingredient raw medicine and peptone to obtain raw medicine fine powder with the particle size of 300-350 meshes, and then taking 5-90% of the active ingredient raw medicine fine powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 10 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent is put into a gravity-free mixer for weight loss mixing to obtain functional mother powder for standby.
Moreover, 5 to 60 percent of active ingredients of the original medicine and 0.1 to 10 percent of dispersant; 0.1 to 5 percent of wetting agent; 1% -10% of inducer; grinding 0.01-3% of warning color in a sand mill to obtain functional mother liquor for later use.
In addition, the preparation method of the granules prepared by the dry method in the step four comprises the following specific steps:
preparing D-phase functional bonding slurry: taking 1-20% of sucrose according to the weight ratio; 1-10% starch; 0.01 to 3 percent of warning color, 1 to 5 percent of beef extract and water are complemented, and the beef extract is placed in a container with stirring to be stirred to be homogeneous for standby;
and coating and granulating by a dry method or a wet method.
Moreover, the preparation method of the dry coating granulation comprises the following steps: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother powder and the second part of functional bonding slurry, uniformly mixing the mixture on the surface of the carrier to form a medicine film, adding the second part of chemical pesticide functional mother powder and the third part of functional bonding slurry, and uniformly stirring and mixing to obtain a finished product of the dry coating granule.
Moreover, the wet coating granule comprises the following specific methods: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother liquid and the second part of bonding slurry, uniformly stirring, adding the second part of chemical pesticide functional mother liquid and the third part of bonding slurry, performing spray drying granulation, and drying to obtain a wet-process coated granule finished product.
The invention has the advantages and positive effects that:
1. the biological agent has slightly poor quick-acting property compared with the pesticide ingredients, and the quick-acting property and the lasting period of the biological agent can be improved by compounding the biological agent and the pesticide ingredients. The invention prepares granules by compounding metarhizium anisopliae with chemical pesticides such as chlorbenzuron, spinetoram, spirotetramat and the like, and the granules are applied to controlling pests such as thrips, plutella xylostella, aphids, pod borers, leaf miners and the like on crops. The processing process comprises the steps of preparing the metarhizium anisopliae biological bacteria powder into mother powder, preparing the chemical pesticides of chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin, chlorfenapyr and the like into mother solution or mother powder, and then preparing the granules.
2. The carrier material used in the invention is different from the conventional granule carrier, and adopts a bio-based high polymer material chitosan-calcium carbonate carrier. According to chitosan (90-95%): citric acid (1-4%): mixing white carbon black (1-9%) in an ultrafine pulverizer, and pulverizing to obtain 95% chitosan powder. The preparation method comprises the steps of crushing and mixing 95% of chitosan mother powder and light calcium carbonate in a ratio of 1:1 in an ultrafine crusher, adding a small amount of purified water into the mixture, and performing extrusion granulation to obtain the chitosan nano-particles with the particle size of 0.3-1.0 mm. The fertilizer can also provide part of nutrients for biological agents and crops to absorb while serving as a carrier. A small amount of acid is added into the carrier, so that the chitosan can be dissolved easily when the carrier is applied in a broadcasting way, and the absorption of soil and plants is facilitated.
3. The invention improves the traditional process of the granules, the slurry is evenly divided into three parts, the bacillus subtilis is coated firstly, the chemical pesticide chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin or chlorfenapyr and other mother liquor or mother powder is evenly divided into two parts, and the two parts are coated for two times. And the chemical pesticide bag is coated on the outer layer of the granules, and the biological agent is coated on the inner layer, so that the quick-acting effect is better, and the lasting period is longer.
4. The invention aims at granules prepared from biological agents and chemical components of pesticides, and nutrient substances beneficial to the growth of the bacteria, such as peptone and beef extract, are added in the formula development process. The preparation filler of the mother powder is complemented by peptone, and a certain amount of beef extract is added into the slurry, so that the two can provide nutrients for the growth of thalli and also provide certain nutrients for the growth of plants.
5. The invention avoids the problems of sticky granules, difficult drying and the like caused by large material amount and slurry amount during the preparation of granules with higher content, the used slurry is sucrose-starch mixed solution, the water solubility is better, the drying is fast, three coatings are adopted, the original drug is wrapped more uniformly and is easy to dry, the drying process is saved, and the energy consumption is saved; the coating process adopts the coating sequence of biological bacteria powder-chemical pesticide mother liquor or mother powder, so that the quick action is better and the lasting period is long.
Detailed Description
The present invention is further illustrated by the following specific examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
An insecticidal granule, comprising the following components:
phase A component: the functional mother powder of the biological agent accounts for 1 to 30 percent by mass, the active ingredients are mechanically crushed or ground and then mixed with a proper amount of functional auxiliary agents, and the functional auxiliary agents comprise various combinations of binding agents, water reducing agents, dispersing agents, wetting agents, inducing agents and warning colors.
The biological agent in the phase A component is Metarrhizium anisopliae, and the activity of the bacterial powder is 100 hundred million/g spore powder.
B phase component: the functional mother powder or mother liquor of the pesticide active component accounts for 1 to 30 percent by mass.
The active ingredients are mechanically crushed or ground and then mixed or ground with a proper amount of functional additives, wherein the functional additives comprise various combinations of binding agents, water reducing agents, dispersing agents, wetting agents, inducing agents and warning colors and residual materials;
the pesticide in the phase B component comprises chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin and chlorfenapyr.
C phase component: the biological-based high polymer material chitosan-calcium carbonate particles account for 60-95% by mass;
and (3) phase D component: the functional bonding pulp accounts for 0.2-50% by mass and comprises cane sugar, starch, beef extract and warning color;
a preparation process of an insecticidal granule comprises the following specific steps:
the method comprises the following steps: preparing functional mother powder of phase A component;
step two: preparing phase B component functional mother powder or mother liquor;
step three: preparing a bio-based high polymer material chitosan-calcium carbonate carrier;
step four: preparing granules by a dry method or a wet method;
step five: and preparing a finished product.
The preparation method comprises the following specific steps: preparing A-phase functional mother powder, namely mechanically crushing or air-jet crushing the metarhizium anisopliae powder and peptone to obtain raw medicine fine powder with the particle size of 300 plus 350 meshes, and taking 5-90% of the metarhizium anisopliae powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 30 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent; 0.1-2% of white carbon black; and (3) complementing the peptone, placing in a gravity-free mixer for weight loss mixing to obtain functional mother powder for later use.
The second step is a specific preparation method:
firstly, mechanically crushing or air-jet crushing active ingredient raw medicines and peptone to obtain raw medicine fine powder with the particle size of 300-350 meshes, and then taking 5-90% of the active ingredient raw medicine fine powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 10 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent is put into a gravity-free mixer for weight loss mixing to obtain functional mother powder for standby.
Preparing the B phase functional mother liquor: 5 to 60 percent of active ingredients of the original medicine and 0.1 to 10 percent of dispersant; 0.1 to 5 percent of wetting agent; 1% -10% of inducer; grinding 0.01-3% of warning color in a sand mill to obtain functional mother liquor for later use.
The third specific preparation method comprises the following steps: the preparation method is characterized by preparing a bio-based high polymer material chitosan-calcium carbonate carrier, which is different from a conventional granule carrier, adopting the bio-based high polymer material chitosan-calcium carbonate carrier, uniformly mixing and crushing chitosan, citric acid and white carbon black in an ultrafine crusher according to the percentage of 90-95:1-4:1-9 to prepare 95% of chitosan mother powder for later use, crushing and mixing the 95% of chitosan mother powder and light calcium carbonate in the ultrafine crusher according to the proportion of 1:1, adding purified water into an extrusion granulator to granulate, wherein the particle size is 0.3-1.0 mm.
The preparation method of the dry-method granule comprises the following steps:
preparing D-phase functional bonding slurry: taking 1-20% of sucrose according to the weight ratio; 1-10% starch; 0.01 to 3 percent of warning color, 1 to 5 percent of beef extract and water are added to the mixture, and the mixture is placed in a container with a stirrer and stirred until the mixture is homogeneous for later use.
The preparation method comprises the following steps: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother powder and the second part of functional bonding slurry, uniformly mixing the mixture on the surface of the carrier to form a medicine film, adding the second part of chemical pesticide functional mother powder and the third part of functional bonding slurry, and uniformly stirring and mixing to obtain a finished product of the dry coating granule.
The specific method for coating the granules by the wet method comprises the following steps: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother liquid and the second part of bonding slurry, uniformly stirring, adding the second part of chemical pesticide functional mother liquid and the third part of bonding slurry, performing spray drying granulation, and drying to obtain a wet-process coated granule finished product.
The technical scheme is specifically applied and tested as follows:
1. the granules comprise an A phase component, a B phase component, a C phase component and a D phase component, wherein the A phase component is functional mother powder of the Metarrhizium anisopliae, the B phase component is functional mother powder of the diflubenzuron, the C phase component is a bio-based high polymer material chitosan-calcium carbonate particle carrier, and the D phase component is functional bonding slurry.
The 80% functional masterbatch was prepared as follows:
| active component | Water reducing agent | Dispersing agent | Wetting agent | Binder | White carbon black | Peptone | Total up to |
| 843g of 95% chlorbenzuron | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
| 100% Metarrhizium anisopliae 800g | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
The functional bonding paste comprises the following components:
| beef extract | Sucrose | Starch | Alert color | Water (W) |
| 50g | 200 | 100g | 20g | 630g |
The compound granules of the chlorbenzuron and the metarhizium anisopliae with different content ratios are designed to be applied to preventing and controlling lepidoptera pests such as food hearts of vegetables and fruit trees, diamond back moths and the like, and the specific implementation case of the granules is as follows:
example 1.1
A compound granule containing chlorbenzuron and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 25g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 12.5g of chlorbenzuron functional mother powder under the stirring state, stirring and mixing uniformly, adding 10g of third bonding slurry and the rest 12.5g of chlorbenzuron functional mother powder, stirring and mixing uniformly, and obtaining the finished product of the dry-method coated granules.
Example 1.2
A compound granule containing chlorbenzuron and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 12.5g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 9.4g of chlorbenzuron functional mother powder under the stirring state, stirring and mixing uniformly, adding 10g of third bonding slurry and the rest 9.35g of chlorbenzuron functional mother powder, stirring and mixing uniformly, and obtaining the finished product of the dry-method coated granules.
Control group
The preparation method comprises the following steps of preparing a phase A component, a phase B component, a phase C component and a phase D component, wherein the phase A component is functional mother powder of the Metarrhizium anisopliae, the phase B component is functional mother liquor of the Metarrhizium anisopliae, the phase C component is a bio-based high polymer material chitosan-calcium carbonate particle carrier, and the phase D component is functional bonding slurry.
The 80% functional masterbatch was prepared as follows:
| active component | Water reducing agent | Dispersing agent | Wetting agent | Binder | White carbon black | Peptone | Total up to |
| 100% Metarrhizium anisopliae 800g | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
The 40% functional mother liquors were prepared as follows:
| active component | Dispersing agent | Wetting agent | Induction agent | Defoaming agent | Dispersion medium | Total up to |
| 42.5g of chlorbenzuron technical (95 percent) | 4g | 1g | 10 | 0.2g | Complement | 100g |
The functional bonding paste comprises the following components:
| beef extract | Sucrose | Starch | Alert color | Water (W) |
| 50g | 200 | 100g | 20g | 630g |
The compound granules of the chlorbenzuron and the metarhizium anisopliae with different content ratios are designed to be applied to preventing and controlling lepidoptera pests such as food hearts of vegetables and fruit trees, diamond back moths and the like, and the specific implementation case of the granules is as follows:
example 1.3
A compound granule containing chlorbenzuron and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 25g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional adhesive slurry and 25g of the chlorbenzuron functional mother liquor, uniformly stirring, adding 10g of the third adhesive slurry and the rest 25g of the chlorbenzuron functional mother liquor, and granulating in spray drying equipment to obtain a finished product of the wet-process coating granules.
Example 1.4
A compound granule containing chlorbenzuron and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 12.5g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional adhesive slurry and 25g of the chlorbenzuron functional mother liquor, uniformly stirring, adding 10g of the third adhesive slurry and the rest 25g of the chlorbenzuron functional mother liquor, and granulating in spray drying equipment to obtain a finished product of the wet-process coating granules.
Product performance detection
The results of the bactericidal activity tests of the above 4 examples are described in tabular and textual form.
The invention totally sets 7 treatments, and 3 times of repetition, in the invention, embodiment 1 (2% chlorbenzuron + 2% metarhizium anisopliae granules), embodiment 2 (1.5% chlorbenzuron + 1% metarhizium anisopliae granules), embodiment 3 (2% chlorbenzuron + 2% metarhizium anisopliae granules), embodiment 4 (2% chlorbenzuron + 1% metarhizium anisopliae granules), and 4 embodiments, a contrast medicament of 25% chlorbenzuron suspending agent (Jinan Luba pesticide Co., Ltd.); control agent 2 hundred million spores/gram metarhizium anisopliae granules (Chongqing Jurisin bioengineering limited); and clear water as a control.
The test site is Guo Zhuang Zhendong Ma Zhuang village in the Pingyu city of Shandong province, and the cabbage caterpillars in the test field have serious disease throughout the year. During the test, cabbage is in the lotus throne stage, and cabbage caterpillar is in the initial full stage. The test time is 8 months and 7 days in 2019, the pesticide application is carried out for 1 time, the granule is uniformly and manually spread, the suspending agent is diluted by water and uniformly sprayed, and the pesticide application is required to be uniform and fine. Before and during the test without any bactericide or insecticide applied, each treatment was repeated 3 times, the cells were randomly arranged, and the area of each cell was 20m2。
The investigation method comprises the following steps: the number of live insects was investigated before and after the treatment at 1d, 3d, 7d and 10d, respectively. Randomly surveying 5 points per cell, fixing 3 cabbages per point, surveying the quantity of live insects on the fixed plants each time, and calculating the control effect.
The oral cavity decline rate (%) is (number of pre-drug insects-number of post-drug insects)/number of pre-drug insects × 100%
Control effect (%) - (reduction rate of population in treatment area-reduction rate of population in control area)/(reduction rate of population in 100-control area) × 100%
Results of field drug effect of different drug treatments on cabbage caterpillars
As can be seen from the above table, the control effects of the agents of the examples are obviously higher than those of the control agents, the control effects of the compound agents of the metarhizium anisopliae and the chlorbenzuron are obviously higher than those of the single component, and the effective period is obviously higher than that of the single chlorbenzuron agent. Under the same content, the more the dosage of the preparation is, the better the prevention and treatment effect is; when the dosage of the preparation is equal, the prevention and treatment effect of the chlorbenzuron wet coating is better than that of the chlorbenzuron dry coating; the content of the chlorbenzuron is equal, the higher the content of the metarhizium anisopliae is, the better the prevention and treatment effect is; from the above results, it can be seen that the quick-acting property of Metarrhizium anisopliae is slightly poor, but the lasting period is obviously longer than that of the chlorbenzuron single agent.
2. The granules comprise an A phase component, a B phase component, a C phase component and a D phase component, wherein the A phase component is functional mother powder of the Metarrhizium anisopliae, the B phase component is functional mother powder of the bifenthrin, the C phase component is a bio-based high polymer material chitosan-calcium carbonate particle carrier, and the D phase component is functional bonding slurry.
The 80% functional masterbatch was prepared as follows:
| active component | Water reducing agent | Dispersing agent | Wetting agent | Binder | White carbon black | Peptone | Total up to |
| 97% bifenthrin 825g | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
| 100% Metarrhizium anisopliae 800g | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
The functional bonding paste comprises the following components:
| beef extract | Sucrose | Starch | Alert color | Water (W) |
| 50g | 200 | 100g | 20g | 630g |
Bifenthrin and metarhizium anisopliae compound granules with different content ratios are designed to be applied to control lepidoptera pests such as food cores of vegetables and fruit trees, diamond back moths and the like, and the specific implementation case of the granules is as follows:
example 2.1
A compound granule containing bifenthrin and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 25g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 12.5g of bifenthrin functional master powder under the stirring state, stirring and mixing uniformly, adding 10g of third bonding slurry and the rest 12.5g of chlorbenzuron functional master powder, stirring and mixing uniformly, and obtaining the finished product of the dry-process coated granules.
Example 2.2
A compound granule containing bifenthrin and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 12.5g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 9.4g of bifenthrin functional mother powder under the stirring state, stirring and mixing uniformly, adding 10g of third bonding slurry and the rest 9.35g of bifenthrin functional mother powder, stirring and mixing uniformly, and obtaining the finished product of the dry coating granule.
Control group
The preparation method and application of a compound granule containing bifenthrin and metarhizium anisopliae comprise an A phase component, a B phase component, a C phase component and a D phase component, wherein the A phase component is functional mother powder of the metarhizium anisopliae, the B phase component is functional mother liquor of the bifenthrin, the C phase component is a bio-based high polymer material chitosan-calcium carbonate particle carrier, and the D phase component is functional bonding slurry.
The 80% functional masterbatch was prepared as follows:
| active component | Water reducing agent | Dispersing agent | Wetting agent | Binder | White carbon black | Peptone | Total up to |
| 100% Metarrhizium anisopliae 800g | 30g | 40g | 10g | 20g | 20g | Complement | 1000g |
The 40% functional mother liquors were prepared as follows:
| active component | Dispersing agent | Wetting agent | Induction agent | Defoaming agent | Dispersion medium | Total up to |
| 41.5g of bifenthrin technical product (97 percent) | 4g | 1g | 10 | 0.2g | Complement | 100g |
The functional bonding paste comprises the following components:
| beef extract | Sucrose | Starch | Alert color | Water (W) |
| 50g | 200 | 100g | 20g | 630g |
Bifenthrin and metarhizium anisopliae compound granules with different content ratios are designed to be applied to control lepidoptera pests such as food cores of vegetables and fruit trees, diamond back moths and the like, and the specific implementation case of the granules is as follows:
example 2.3
A compound granule containing bifenthrin and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 25g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 25g of bifenthrin functional mother liquor, uniformly stirring, adding 10g of third bonding slurry and the rest 25g of bifenthrin functional mother liquor, and granulating in spray drying equipment to obtain a finished product of the wet-process coating granules.
Example 2.4
A compound granule containing bifenthrin and metarhizium anisopliae comprises the following components by mass:
the operation steps are as follows: adding bio-based high polymer material chitosan-calcium carbonate carrier particles meeting the requirements into a coating granulator according to the mass ratio, adding 10g of functional bonding slurry under the stirring state, stirring until the surface of the carrier is uniformly wetted, adding 12.5g of green muscardine fungus mother powder, and uniformly mixing to form a medicine film on the surface of the carrier; adding 10g of functional bonding slurry and 25g of bifenthrin functional mother liquor, uniformly stirring, adding 10g of third bonding slurry and the rest 25g of bifenthrin functional mother liquor, and granulating in spray drying equipment to obtain a finished product of the wet-process coating granules.
Product performance detection
The results of the bactericidal activity tests of the above 4 examples are described in tabular and textual form.
The invention totally sets 7 treatments, and 3 times of repetition, in the invention, embodiment 1 (2% bifenthrin + 2% metarhizium anisopliae granules), embodiment 2 (1.5% bifenthrin + 1% metarhizium anisopliae granules), embodiment 3 (2% bifenthrin + 2% metarhizium anisopliae granules), embodiment 4 (2% bifenthrin + 1% metarhizium anisopliae granules), and 4 embodiments, in total, 0.5% bifenthrin granules (Hanbang plant protectant Limited liability company, Tianjin); control agent 2 hundred million spores/gram metarhizium anisopliae granules (Chongqing Jurisin bioengineering limited); and clear water as a control.
The test place is Yangxiangxiangxiangchun of the Boai county of Henan province, and the onset of disease of the test cabbage black cutworm is serious all the year round. During the test, cabbage is in the rosette stage, and black cutworm is in the first flourishing stage. The test time is 8 months and 7 days in 2019, the application is 1 time, the application of the granules adopts manual uniform broadcasting application, and the application is required to be uniform and detailed. Before and during the test without any bactericide or insecticide applied, each treatment was repeated 3 times, the cells were randomly arranged, and the area of each cell was 20m2。
The investigation method comprises the following steps: the number of live insects was investigated before and after the treatment at 1d, 3d, 7d and 10d, respectively. Randomly surveying 5 points per cell, fixing 3 cabbages per point, surveying the quantity of live insects on the fixed plants each time, and calculating the control effect.
The oral cavity decline rate (%) is (number of pre-drug insects-number of post-drug insects)/number of pre-drug insects × 100%
Control effect (%) - (reduction rate of population in treatment area-reduction rate of population in control area)/(reduction rate of population in 100-control area) × 100%
Results of field drug effects of different drug treatments on black cutworm
As can be seen from the above table, the control effects of the medicaments in the examples are obviously higher than those of the control medicaments, the control effects of the metarhizium anisopliae and bifenthrin compound medicaments are obviously higher than those of the single component, and the effective duration is obviously higher than that of the single chlorbenzuron agent and the single metarhizium anisopliae agent. Under the same content, the more the dosage of the preparation is, the better the prevention and treatment effect is; when the dosage of the preparation is equal, the control effect of the bifenthrin wet coating is better than that of the bifenthrin dry coating; the bifenthrin content is equal, the higher the Metarrhizium anisopliae content is, the better the prevention and treatment effect is; from the efficacy results, the quick-acting performance of the metarhizium anisopliae is slightly poor, but the lasting period is obviously longer than that of a single bifenthrin preparation.
Although the embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments disclosed.
Claims (8)
1. An insecticidal granule characterized by: comprises the following components:
phase A component: the green muscardine fungus mother powder has the fungus powder activity of 100 hundred million/g of spore powder, and accounts for 1 to 30 percent by mass;
b phase component: the functional mother powder or mother liquor of the active ingredients of the pesticide accounts for 1 to 30 percent by mass, and the pesticide comprises one or more of chlorbenzuron, spinetoram, spirotetramat, bifenthrin, imidacloprid, acetamiprid, emamectin benzoate, abamectin, thiamethoxam, clothianidin and chlorfenapyr;
c phase component: the biological-based high polymer material chitosan-calcium carbonate particle carrier accounts for 60-95% of the mass percentage;
and (3) phase D component: the functional bonding pulp accounts for 0.2-50% by mass, and comprises sucrose, starch, beef extract and warning color.
2. An insecticidal granule according to claim 1, wherein: the metarhizium anisopliae mother powder in the phase A component and the phase B component and the functional mother powder or mother liquor of the pesticide active ingredients are mixed or ground with functional auxiliaries, wherein the functional auxiliaries comprise one or more of a binder, a water reducing agent, a dispersing agent, a wetting agent, an inducer and a warning color.
3. A preparation process of an insecticidal granule is characterized by comprising the following steps: the method comprises the following specific steps:
the method comprises the following steps: preparing functional mother powder of phase A component: firstly, mechanically crushing or air-jet crushing the metarhizium anisopliae powder and peptone to obtain raw medicine fine powder with the particle size of 300 plus 350 meshes, and then taking 5-90% of the metarhizium anisopliae powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 30 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent; 0.1-2% of white carbon black; complementing the peptone, placing in a gravity-free mixer for weight loss mixing to obtain functional mother powder for later use;
step two: preparing phase B component functional mother powder or mother liquor;
step three: preparing a bio-based high polymer material chitosan-calcium carbonate carrier: uniformly mixing and crushing chitosan, citric acid and white carbon black in an ultrafine crusher according to the percentage of 90-95:1-4:1-9 to prepare 95% chitosan mother powder for later use, crushing and mixing the 95% chitosan mother powder and light calcium carbonate in the ultrafine crusher according to the proportion of 1:1, adding purified water into an extrusion granulator to granulate, wherein the particle size is 0.3-1.0 mm;
step four: preparing granules by a dry method or a wet method;
step five: and preparing a finished product.
4. The process for preparing granules of insecticide according to claim 3, wherein:
the method for preparing the B-phase functional mother powder comprises the following steps: firstly, mechanically crushing or airflow crushing active ingredient raw medicine and peptone to obtain raw medicine fine powder with the particle size of 300-350 meshes, and then taking 5-90% of the active ingredient raw medicine fine powder according to the weight ratio; 0.5 to 10 percent of binder; 0.5 to 10 percent of water reducing agent; 0.1 to 5 percent of dispersant; 0.1 to 5 percent of wetting agent is put into a gravity-free mixer for weight loss mixing to obtain functional mother powder for standby.
5. The process for preparing granules of insecticide according to claim 3, wherein: the method for preparing the phase B functional mother solution comprises the following steps: 5 to 60 percent of active ingredients of the original medicine and 0.1 to 10 percent of dispersant; 0.1 to 5 percent of wetting agent; 1% -10% of inducer; grinding 0.01-3% of warning color in a sand mill to obtain functional mother liquor for later use.
6. The process for preparing granules of insecticide according to claim 3, wherein:
the preparation method of the dry-method granule comprises the following steps:
preparing D-phase functional bonding slurry: taking 1-20% of sucrose according to the weight ratio; 1-10% starch; 0.01 to 3 percent of warning color, 1 to 5 percent of beef extract and water are complemented, and the beef extract is placed in a container with stirring to be stirred to be homogeneous for standby;
and coating and granulating by a dry method or a wet method.
7. The process for preparing granules of insecticide according to claim 4, wherein: the preparation method of the dry coating granulation comprises the following steps: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother powder and the second part of functional bonding slurry, uniformly mixing the mixture on the surface of the carrier to form a medicine film, adding the second part of chemical pesticide functional mother powder and the third part of functional bonding slurry, and uniformly stirring and mixing to obtain a finished product of the dry coating granule.
8. The process for preparing granules of insecticide according to claim 4, wherein: the preparation method of the dry coating granulation comprises the following steps: the specific method of the wet-process coating granules comprises the following steps: adding the carrier particles in the third step into a coating granulator according to the weight ratio, evenly dividing the slurry into three parts according to the addition amount, adding the Metarrhizium anisopliae mother powder prepared in the first step under the stirring state, adding the first part of functional bonding slurry, stirring until the surface of the carrier is uniformly wet, adding the first part of chemical pesticide functional mother liquid and the second part of bonding slurry, uniformly stirring, adding the second part of chemical pesticide functional mother liquid and the third part of bonding slurry, performing spray drying granulation, and drying to obtain a wet-process coated granule finished product.
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| CN115053913A (en) * | 2022-06-30 | 2022-09-16 | 广西壮族自治区国有钦廉林场 | Compound pesticide and method for preventing and controlling underground pests |
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