阅读说明：本技术 一种植物杀虫复方组合物及其制备方法和使用方法 (Compound plant insecticide composition and preparation method and use method thereof ) 是由 杨万才 于 2021-10-18 设计创作，主要内容包括：本发明属于杀虫剂技术领域,公开了一种植物杀虫复方组合物及其制备方法和使用方法。该组合物是由两种方剂组合而成,该组合物中的方剂选用的原料均为具有熏蒸、触杀虫害和胃毒作用的原料。上述方剂A和方剂B中的朝天椒提取物和花椒提取物均具有熏蒸和触杀虫害的作用；方剂A和方剂B中的茶枯提取物和百部提取物均具有胃毒作用,上述方剂结合即可完成杀虫的目的。制备方法简单。该组合物中的方剂A和方剂B使用过程中采用方剂A和方剂B交替施加的方式,是为了避免长期使用某一个单一品种方剂会引起虫害的抗药性,交替方剂使用,不仅能够提高杀虫剂的功效,而且能减少用药量,进一步提高杀虫的特性。(The invention belongs to the technical field of pesticides, and discloses a plant insecticidal compound composition, and a preparation method and a use method thereof. The composition is prepared by combining two formulas, wherein the raw materials selected by the formulas in the composition are all raw materials with fumigating, contact insect pest killing and stomach toxicity effects. The extract of pod pepper and the extract of Chinese prickly ash in formula A and formula B have fumigating and contact insect killing effects; the tea seed cake extract and the stemona root extract in the formula A and the formula B have stomach toxicity function, and the purpose of killing insects can be achieved by combining the formulas. The preparation method is simple. The alternating application of the formulas A and B is adopted in the application process of the formulas A and B in the composition, so that the alternating application of the formulas can avoid the drug resistance of pests caused by long-term use of a single formula, not only can the efficacy of the pesticide be improved, but also the dosage can be reduced, and the insecticidal property can be further improved.)

1. A compound plant insecticide composition is characterized by comprising a formula A and a formula B;

the formula A mainly comprises the following raw materials in parts by mass: 15-65 parts of cluster pepper extract and 15-65 parts of tea seed cake extract;

the formula B mainly comprises the following raw materials in parts by mass: 10-45 parts of pepper extract and 10-45 parts of stemona extract.

2. The plant insecticidal compound composition according to claim 1, wherein the formula A mainly comprises the following raw materials in parts by mass: 20-60 parts of red cluster pepper extract and 20-60 parts of tea seed cake extract.

3. The plant insecticidal compound composition according to claim 2, wherein the formula A mainly comprises the following raw materials in parts by mass: 45 parts of cluster pepper extract and 45 parts of tea seed cake extract.

4. The plant insecticidal compound composition according to claim 1, wherein the formula B mainly comprises the following raw materials in parts by mass: 15-40 parts of pepper extract and 15-40 parts of stemona extract.

5. The plant insecticidal compound composition according to claim 4, wherein the formula B mainly comprises the following raw materials in parts by mass: 30 parts of pepper extract and 30 parts of stemona extract.

6. A preparation method of the botanical insecticidal compound composition as described in any of claims 1-5, wherein the method comprises the following steps:

the formula A is prepared by selecting and mixing a pod pepper extract and a tea seed cake extract according to a corresponding proportion to obtain a finished product of the formula A;

the prescription B is prepared by selecting a pepper extract and a stemona extract according to a corresponding proportion and uniformly mixing to obtain a finished product of the prescription B.

7. The use method of the plant insecticidal compound composition is characterized by comprising the following steps: the finished products of the formula a and the formula B obtained by the plant insecticidal composition according to any one of claims 1 to 5 or the preparation method of the plant insecticidal composition according to claim 6 are diluted with a solvent, and then sprayed in the order of the formula a, the formula B, the formula a, and the formula B, and applied by using a spraying device.

8. The use method of the botanical insecticidal compound composition as claimed in claim 7, wherein the solvent is water.

9. The use method of the plant insecticidal compound composition according to claim 8, wherein the mass ratio of the formula A to the solvent is 1: 150-160 wt%.

10. The use method of the plant insecticidal compound composition according to claim 8, wherein the mass ratio of the formula B to the solvent is 1: 150-160 wt%.

Technical Field

The invention belongs to the technical field of pesticides, and particularly relates to a plant insecticidal compound composition, and a preparation method and a use method thereof.

Background

The state strictly pursues the pesticide-reducing green plant protection technology, and areas with unitary sun and similar ecological regions have increasingly serious insect pests and continuously increased species drug resistance due to continuous cropping of rice for hundreds of years, and the reduction of the dosage of chemical pesticides and the high yield of rice are always difficult problems. In order to reduce the consumption of chemical pesticides and produce green and organic rice, a method for completely preventing and treating rice pests by different formulas of plants according to the occurrence rule of local rice pests is adopted, so that the problem of preventing and treating the pests in similar ecological areas in China is solved.

The rice insect pest in the unitary male ecological region mainly occurs in 6-7 months. The pests such as chilo suppressalis, cnaphalocrocis medinalis, rice stem miners, rice planthoppers and the like are accumulated for hundreds of years, so that the intensity is high, and the damage is increasingly serious. The historical problem of reducing the yield of chemical pesticides and rice is formed. Through research and large-area application practice in the field, two problems of reduction of pesticide and increase of income of rice and production of green organic rice are well solved. Under the historical conditions of heavy rain, dampness, little sunshine, more insects and serious diseases, the pure plants are used for preventing and treating various insect pests, thereby ensuring the harvest, high quality and safety of the rice.

The country gradually promotes weight-reducing and medicine-reducing. In the area of unitary yang and similar ecological areas, the insect pests are increasingly serious due to continuous cropping of rice for hundreds of years. How to solve the problems of high yield of rice and reduction of chemical pesticides is always a big problem.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a botanical insecticidal compound composition and a preparation method and a use method thereof.

The technical scheme adopted by the invention is as follows: a compound plant pesticide composition comprises a formula A and a formula B;

the formula A mainly comprises the following raw materials in parts by mass: 15-65 parts of cluster pepper extract and 15-65 parts of tea seed cake extract;

the formula B mainly comprises the following raw materials in parts by mass: 10-45 parts of pepper extract and 10-45 parts of stemona extract.

Capsicum annuum extract, Capsicum annuum variety, perennial semi-woody plant of Capsicum of Solanaceae, and is commonly cultivated annually; the plant height is 30-60 cm, the branches are many, the stem is upright, and the single leaves are grown mutually; the flower is white, the blooming period is 5 months from beginning to 7 months, the fruits cluster on the branch end, and the flavor is the same as that of green pepper. The whole herb is used as a medicine, and the rhizome is warm in nature and sweet in taste, can expel wind and clear away cold, relax tendons and activate collaterals, and has the effects of killing parasites and relieving itching. The chemical components of the pod pepper extract: contains capsochrome and pungent substances. Contains pungent components, mainly capsaicin and dihydrocapsaicin, and contains volatile oil, protein, calcium, phosphorus, abundant vitamin C, carotene and capsorubin. Pod pepper, pungent in flavor and hot in nature, can warm the middle energizer, dry dampness and induce sweating.

The tea seed cake is the residue cake of oil-pressed camellia seed, and the effective component is saponin and is also a botanical pesticide. Is residue left after oil extraction of camellia japonica oil fruits. The tea cake contains 12-18% tea saponin. Tea saponin is a hemolytic toxin which can melt red blood cells of fish, so that wild fishes, loaches, snails, mussels, frog eggs, tadpoles and a part of aquatic insects can be killed. The tea saponin is easily dissolved in alkaline water, and has good drug effect by adding a small amount of lime water. Because the protein content of the tea seed cake is higher, the tea seed cake is also a high-efficiency organic fertilizer, is widely applied to the cultivation of crops and fruit trees and has excellent effect. Can play a role in increasing fertilizer for ponds with less sludge and barren bottom materials. The tea seed cake used as the pond clearing medicament has more unique effect than other medicaments. The tea seed cake is widely applied to pond cleaning in fish ponds, rice fields and high-grade lawns for killing insects, earthworms, cutworms and other pests. The tea seed cake as a green medicine can be automatically decomposed without toxicity and residual, has no influence on human body, and is safe to use. Secondly, the aquatic weeds are not killed, and the growth promoting effect on the aquatic weeds is also achieved. Thirdly, the prawn larva and the crab larva have no side effect, and the pond yielding rate in the process of breeding the prawn larva and breeding the juvenile crab is high. The quality standard of the tea seed cake is as follows: the tea saponin contains 12-18% of tea saponin, less than 2% of residual oil, 12-16% of protein, 30-50% of starch and saccharide, 10-12% of fiber, less than 12% of water and less than 2% of impurity. The tea seed refined powder is widely applied to washing chemical industry, machine rust removal, aquaculture, golf course earthworm killing and the like. The tea seed cake and the tea seed cake liquid have good stomach toxicity and contact killing effects on pests, can be widely used on crops such as vegetables, rice, fruit trees, tea leaves, flowers and the like, and can be used for preventing and treating pests such as snails, river snails, leeches, rice planthoppers, rice leafhoppers, sweet potato weevils and the like. No pollution, no residual toxicity, long storage life and long-term drug effect. However, saponin is toxic to fish and does not pollute the water areas such as fish ponds when in use.

The fructus Zanthoxyli extract contains limonene (limonene), cumic alcohol (cumical alcohol), geraniol (geraniol), phytosterol, and unsaturated organic acid. Nature and taste: warm in nature and pungent in flavor. Warm middle energizer to alleviate pain, kill parasites to relieve itching. Can be used for treating abdominal psychroalgia, emesis, diarrhea, abdominal pain due to parasitic infestation, and ascariasis; it can be used for treating eczema and pruritus. The main components of the volatile oil in the peel of the pepper are limonene (limonene) accounting for 25.10 percent of the total oil, 1, 8-cineole (1, 8-cineole) accounting for 21.79 percent of the total oil, myrcene (myrcene) accounting for 11.99 percent of the total oil, and also alpha-pinene (pinene) and beta-pinene (pinene), sabinene (sabinene), beta-phellandrene (beta-phellandrene), beta-ocimene-X (beta-oximenene-X), P-cymene (P-cymene), alpha-terpinene (alpha-terpinene), perillene (perillene), linalool (l 8-aloe), 4-terpinene (ter-pinene-4-ol), estragole (estragole), alpha-terpineol (a-pinene), trans-caryophyllene (trans-caryophyllene), terpineol acetate (terpinene), humulene acetate (humulene acetate), beta-piperlongebene (beta-cadinene), geranyl acetate (geranyl acetate), nerolidol isomer (neroklidol isomer), and the like. The pericarp also contains vanilline (kokusaginine), skimmianine (skimmianine), ruthenone (haplopidine), 2 '-hydroxy-N-isobutyl (2E, 6E, 8E, 10E) -dodecenamide (2' -hydroxy-N-isobutenyl- (2E, 6E, 8E, 10E) -dodecacataramide), and piperine (schinifoline) is N-methyl-2-heptyl-4-quinolinone (N-methyl-2-hexyl-4-guinoli-one), dehydroenterin (southern irin), and nonacosane (N-nonacosane). The most abundant volatile oil in pricklyash peel fruit is 4-terpinene (13.46%), also is capsaicin (10.64%), linalool (9.10%), sabinene (9.7%), limonene (7.30%), o-cymene (7.00%), myrcene (3.00%), alpha-and beta-pinene, alpha-terpineol, etc. In the volatile oil of pricklyash seed, the main component is linalool 18.5%, then myrcene 10.2% and tert-butyl benzene (tert-butylbenzene) 11.8%, and also sabinene, alpha-pinene, limonene, 1, 3, 3-trimethyl-2-oxabicyclo (2.2.2) octane (1, 3, 3-trimethyl-2-oxabicyclo (2.2.2) octane), terpineol, pulegone, (E) -3-isopropyl-6-oxo-2-heptenal ((E) -3-isopropyl-6-oxo-2-heptenal), (E) -8-methyl-5-isopropyl-6, 8-nonadien-2-one ((E) -8-methyl-5-isopropyl-6, 8-nonadien-2-one), 4- (2, 2-dimethyl-6-methylenecyclohexyl) -3-buten-2-one [4- (2, 2-dimethyl-6-methylidenecyclohexyl) -3-buten-2-one ], α -hydroxy-4, 6-dimethoxyacetophenone (α -hydroxy-4, 6-dimethylyacetophenone), 1, 1-dimethyl-4, 4-diallyl-5-oxo-2-cycloethylene (1, 1-dimethyl-4, 4-diallyl-5-oxocycloethylene-2-one), β -guralene (β -gurjunene), longifolene (longifolene), α -farnesene (α -farnesene), γ -piperonylene (γ -cadinene), syringatricyclene (clovenene).

Stemona extract is prepared by extracting dried rhizome of Stemona sessilifolia, Stemona japonica Thunb, etc. of Stemona of Stemonaceae. The contained alkaloid can moisten lung, expel qi, relieve cough and kill parasites. Reduce the excitability of the respiratory center, inhibit the cough reflex and achieve the effect of relieving cough. Active ingredients: stemona tuberosa root contains stemonine (Sessilistmonine), hodorine (Hordonine), Tuberostemonine (Tuberostemonine), Protostemonine (Protostemonine), etc. Radix stemonae tuberous root: contains Stemonine (Stemonine), isostemonine (isostemonine), Stemonine (Stemonine), isostemonine (isostemonine) and protostemonine. Stemona tuberosa root comprises stemonine, isostemonine, stemonine (Hypotuberite-monate), tuberostemonine (Oxotuberonitine), and steumine (stemmine). The efficacy is as follows: the alkaloid contained in radix Stemonae has effects of moistening lung, descending qi, relieving cough, and killing parasite. Reduce the excitability of the respiratory center, inhibit the cough reflex and achieve the effect of relieving cough. Has effects in relaxing bronchospasm, and has similar strength to aminophylline. Has inhibitory effect on most pathogenic bacteria and dermatophytes. The water extract and alcohol extract have killing effect on body louse and pubic louse. In addition, it has some sedative and analgesic effects.

Preferably, the formula A mainly comprises the following raw materials in parts by mass: 20-60 parts of red cluster pepper extract and 20-60 parts of tea seed cake extract.

Preferably, the formula A mainly comprises the following raw materials in parts by mass: 45 parts of cluster pepper extract and 45 parts of tea seed cake extract.

Preferably, the formula B mainly comprises the following raw materials in parts by mass: 15-40 parts of pepper extract and 15-40 parts of stemona extract.

Preferably, the formula B mainly comprises the following raw materials in parts by mass: 30 parts of pepper extract and 30 parts of stemona extract.

A preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is prepared by selecting and mixing a pod pepper extract and a tea seed cake extract according to a corresponding proportion to obtain a finished product of the formula A;

the prescription B is prepared by selecting a pepper extract and a stemona extract according to a corresponding proportion and uniformly mixing to obtain a finished product of the prescription B.

A use method of the plant insecticidal compound composition comprises the steps of adding a solvent into the plant insecticidal compound composition according to any one of claims 1 to 5 or the finished products of the formula A and the formula B obtained by the preparation method of the plant insecticidal compound composition according to claim 6 for dilution, spraying the diluted products in the sequence of the formula A, the formula B, the formula A and the formula B, and applying the diluted products by using spraying equipment.

Preferably, the solvent is water.

Preferably, the mass ratio of the formula A to the solvent is 1: 150-160 wt%.

Preferably, the mass ratio of the formula B to the solvent is 1: 150-160 wt%.

The invention has the beneficial effects that:

the invention provides a plant insecticidal compound composition, which is prepared by combining two formulas, wherein the raw materials selected by the formulas in the composition are all the raw materials with fumigating, contact insect pest killing and stomach toxicity effects. The extract of pod pepper and the extract of Chinese prickly ash in formula A and formula B have fumigating and contact insect killing effects; the tea seed cake extract and the stemona root extract in the formula A and the formula B have stomach toxicity function, and the purpose of killing insects can be achieved by combining the formulas.

The preparation method of the prescription A and the prescription B in the composition is simple.

The alternating application of the formulas A and B is adopted in the application process of the formulas A and B in the composition, so that the alternating application of the formulas can avoid the drug resistance of pests caused by long-term use of a single formula, not only can the efficacy of the pesticide be improved, but also the dosage can be reduced, and the insecticidal property can be further improved.

Detailed Description

The present invention is further illustrated below with reference to specific examples. It will be appreciated by those skilled in the art that the following examples, which are set forth to illustrate the present invention, are intended to be part of the present invention, but not to be construed as limiting the scope of the present invention. The reagents used are all conventional products which are commercially available.

Example 1:

a preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is prepared by selecting 15 g of pod pepper extract and 15 g of tea seed cake extract according to the corresponding proportion and mixing uniformly to obtain a finished product of the formula A;

the prescription B is prepared by selecting 10 g of pepper extract and 10 g of radix stemonae extract according to corresponding proportion and mixing uniformly.

Example 2:

a preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is prepared by selecting 65 g of pod pepper extract and 65 g of tea seed cake extract according to the corresponding proportion and mixing uniformly to obtain the finished product of the formula A;

and the formula B is prepared by selecting 45 g of pepper extract and 45 g of stemona extract according to a corresponding proportion and mixing uniformly.

Example 3:

a preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is prepared by selecting 20 g of pod pepper extract and 20 g of tea seed cake extract according to corresponding proportion and mixing uniformly;

the prescription B is prepared by selecting 15 g of pepper extract and 15 g of stemona extract according to corresponding proportion and mixing uniformly.

Example 4:

a preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is prepared by selecting 60 g of pod pepper extract and 60 g of tea seed cake extract according to the corresponding proportion and mixing uniformly to obtain the finished product of the formula A;

the prescription B is prepared by selecting 40 g of pepper extract and 40 g of stemona extract according to corresponding proportion and mixing uniformly.

Example 5:

a preparation method of a plant insecticidal compound composition comprises the following steps:

the formula A is a finished product of the formula A which is obtained by selecting 45 g of pod pepper extract and 45 g of tea seed cake extract according to corresponding proportion and mixing uniformly;

the prescription B is prepared by selecting 30 g of pepper extract and 30 g of stemona extract according to corresponding proportion and mixing uniformly.

The suggested method of use:

(1) the first medication in late 6 months, prescription A;

(2) for the second dose in 7 middle of the month, prescription B was administered.

The process is as follows:

(1) the using method of the formula A comprises the following steps: 200 g of 15-65% pod pepper water and 15-65% tea cake water, and 30kg of water is added for spraying. The application was carried out using a motorized sprayer.

(2) The using method of the formula B comprises the following steps: 10-45% of pepper water, 10-50% of stemona water, 200 g of each, and 30kg of mixed water for spraying. The application was carried out using a motorized sprayer.

The medicine is applied in 6 days in the middle of the month. The local rice field transplantation starts at the beginning of 5 months, so the first medicine is applied in the middle of 6 months, namely, the rice reaches the tillering stage after the field transplantation for one month; 7, in the middle of the month, the rice enters the jointing stage; is a key period for preventing and controlling rice pests. In other time periods, the formula can be alternately used according to the occurrence condition of plant diseases and insect pests, and the rice plant diseases and insect pests in the unitary Yangyang county and the surrounding similar ecological areas can be prevented.

Experimental example:

1. the specific technology is as follows:

once in late 6 months, the prescription A: and (3) mixing 15-65% of pod pepper water and 15-65% of tea seed cake water by 200 g respectively, and adding 30kg of water for spraying. The application was carried out using a motorized sprayer. The pesticide is mainly used for preventing and treating rice planthopper and cnaphalocrocis medinalis.

Once in late 7 months, the prescription B: 10-50% of stemona water, 10-45% of pepper water and 200 g of pepper water respectively, and 30kg of water is added for spraying. The application was carried out using a motorized sprayer. The pesticide is mainly used for preventing and treating rice leaf rollers and rice planthoppers.

In the rest period of 6-8 months, the formulas are alternately used according to the occurrence condition of pests, so that the single-effect pesticide can be used for preventing and treating the cnaphalocrocis medinalis and the rice planthoppers in the unitary yang and similar ecological areas.

2. Materials and methods:

2.1 subjects: rice planthopper, rice leaf roller.

2.2 test agent: 45% of pod pepper water, 45% of tea seed cake water, 45% of stemona root water, 35% of pepper water and 25% of pymetrozine (Jiangsuchun Sheng group Co., Ltd.); indoxacarb 15% (Nanjing agriculture and agriculture technology development Co., Ltd.).

2.3 Experimental treatment: setting 200 g/mu of each of 45% of pod pepper water and 45% of tea seed cake water; 45 percent of stemona water and 35 percent of pepper water which are 200 g/mu respectively; pymetrozine 25% and indoxacarb 15% and 20 ml/mu; and (5) clear water control.

2.4 test article: wild Youli silk (Guangxi Green sea breed Co., Ltd.).

2.5 Experimental overview:

the application place is a green food base in Ma Tian village in cities and towns in Yueyang autonomous county. The rice is planted in one season in one year, the soil is clay, the pH value is 6.1, and the organic matter content is 30.8.

2.6 Experimental methods: each cell has an area of 66.7 square meters, protection rows are arranged among the rows, and the process is repeated for 4 times. The 3WFJ-14 electrostatic spray duster is adopted to apply the pesticide at 6 and 15 days in 2019, 6 and 12 days in 7 and 15 days in 2020, and the dosage is 30 kg/mu.

2.7 investigation method: the blank control area is investigated after the damage state is obvious or the damage is fixed. 50 clusters of rice are investigated in each cell by parallel skip sampling, the mortality rate is counted, and the mu-protecting effect is investigated at the same time.

2.8 investigation of the effects on crops and other organisms:

observing the existence and the type and the degree of phytotoxicity of the pesticide on the crops.

Other non-target organisms (aquatic organisms and beneficial insects) were investigated.

3. Results and analysis:

3.1 formulation A: the control effect of the pod pepper water of 45 percent and the tea seed cake water of 45 percent on rice planthopper and rice leaf roller is as follows:

the control effect of 45% of pod pepper water and 45% of tea seed cake water on rice planthopper and rice leaf roller is investigated when the control harm is obvious 15 days after the pesticide application, and the results are shown in table 1.

TABLE 1 control effect of Zanthoxylum pod water 45% + Thea camellia seed cake water 45% on rice planthopper and cnaphalocrocis medinalis

As can be seen from Table 1: the pesticide effect of using 45% of cluster red pepper water and 45% of tea seed cake water on rice planthopper and rice leaf roller is more than 90%, and the mu-keeping effect is more than 91%. Compared with 25% of pymetrozine and 15% of indoxacarb, the control effect is not obvious.

3.2 formulation B: 45 percent of stemona water and 35 percent of zanthoxylum water have control effects on rice planthopper and cnaphalocrocis medinalis:

when the control harm of clear water is obvious 15 days after the pesticide is applied, the control effects of 45 percent of radix stemonae water and 35 percent of pepper water on rice planthopper and rice leaf roller are investigated, and the results are shown in table 2.

TABLE 2 prevention and treatment effects of 45% of radix Stemonae water and 35% of pricklyash peel water on rice planthopper and cnaphalocrocis medinalis

As can be seen from Table 2: the pesticide effect of 45 percent of stemona water and 35 percent of zanthoxylum water on rice planthopper and rice leaf roller is more than 90 percent, and the mu protection effect is more than 91 percent. Compared with 25% of pymetrozine and 15% of indoxacarb, the control effect is not obvious.

3.3 safety survey results:

no adverse effect on rice, aquatic organisms, beneficial insects and the like is caused by the combination of 45% of pod pepper water, 45% of tea seed cake water, 45% of stemona water and 35% of pepper water in the experimental period.

At present, the rice planthopper is mainly controlled in China by using nicotinoids such as imidacloprid, nitromethylenes such as pymetrozine, and biological pesticides such as metarhizium anisopliae and the like; for preventing and controlling rice leaf rollers, organic phosphorus such as chlorpyrifos and biological pesticide avermectin are mainly used. Among the pesticides, such as imidacloprid, chlorpyrifos, abamectin and the like, the pesticides generate resistance after being used for many years, and the chlorpyrifos and the abamectin have risks to the environment and pesticide residues and are not beneficial to the sustainable development of agriculture. Metarhizium anisopliae has high cost and is difficult to accept by farmers. 45% of pod pepper water, 45% of tea dreg water, 45% of stemona water and 35% of pepper water, is safe to environment, crops, rice and human health. The use of the two formulas of the pod pepper water, the tea withered water, the stemona water and the pepper water can replace the use of partial chemical pesticides or biological pesticides on rice, reduce the dosage of the chemical pesticides, protect the environment, improve the quality of agricultural products and benefit people. According with the national strategy of green development and ecological priority. The pod pepper water, the tea withered water, the stemona water and the pepper water can completely replace part of chemical pesticides and biological pesticides in the aspect of preventing and controlling rice planthoppers and rice leaf rollers, and are good medicines with prospects.

In case one, 2019, the rice variety is wild fragrant Youlisi, 30kg of base fertilizer ternary compound fertilizer is applied per mu, 1.2-1.5 ten thousand holes are transplanted per mu, and 2 plants are planted in each hole. The striking-off fertilizer is applied 10 jin per mu, and the tillering fertilizer is 15 jin. Seedling cultivation is carried out in 4 months and 6 to 8 days, and the seedlings are transplanted to a field in 5 months and 15 to 20 days.

The medicine is applied once in ten days in 6 months, and the prescription A is used and sprayed with 30kg of water; the medicine is applied once in late 7 months, and the prescription B is sprayed with 30kg of water; preventing and controlling rice leaf rollers and rice planthoppers, the control efficiency reaches more than 90 percent, and the yield per mu is 575kg

In case two and 2020, the rice variety is wild fragrant and excellent rice silk, 30kg of base fertilizer ternary compound fertilizer is applied per mu, 1.2-1.5 ten thousand holes are transplanted per mu, and 2 plants are planted in each hole. The striking-off fertilizer is applied 10 jin per mu, and the tillering fertilizer is 15 jin. Seedling cultivation is carried out for 4 months and 8 to 11 days, and the seedlings are transplanted to a field for 5 months and 18 to 23 days.

The medicine is applied once in 6 middle of the month. Spraying with the formula A and 30kg of water; the medicine is applied once in late 7 months, and the prescription B is sprayed with 30kg of water; the pesticide composition can prevent and control rice leaf rollers and rice planthoppers, the prevention effect reaches over 90 percent, and the yield per mu is 560 kg.

The present invention is not limited to the above alternative embodiments, and any other products in various forms can be obtained by the present invention, and the present invention is within the protection scope of the present invention. The above embodiments should not be construed as limiting the scope of the present invention, and it will be understood by those skilled in the art that modifications may be made to the technical solutions described in the above embodiments, or equivalent substitutions may be made to some or all of the technical features thereof, without departing from the scope of the present invention, and at the same time, such modifications or substitutions may not make the essence of the corresponding technical solutions depart from the scope of the embodiments of the present invention.