阅读说明：本技术 一种50%杀螟丹可溶性粉剂配方及其应用 (50% cartap soluble powder formula and application thereof ) 是由 贾立雨 沈雨 尹本友 李正斌 胡晓峰 于 2021-09-29 设计创作，主要内容包括：本发明提供一种50％杀螟丹可溶性粉剂配方,包含如下重量百分含量的成分：杀螟丹50％、润湿剂1-6％、抗结剂3-10％、白炭黑1-5％、硫酸铵补足100％；所述的润湿剂为甲氧基脂肪酰胺基苯磺酸钠或SP-SC3中的一种或两种；所述的抗结剂为聚乙烯吡咯烷酮。所述制剂可用于飞机喷雾以防治农作物害虫。(The invention provides a 50% cartap soluble powder formula, which comprises the following components in percentage by weight: 50% of cartap, 1-6% of wetting agent, 3-10% of anticaking agent, 1-5% of white carbon black and 100% of ammonium sulfate; the wetting agent is one or two of methoxy fatty amide benzene sulfonic acid sodium or SP-SC 3; the anticaking agent is polyvinylpyrrolidone. The formulations are useful in aircraft sprays for controlling crop pests.)

1. The 50% cartap soluble powder formula is characterized in that: comprises the following components in percentage by weight: 50% of cartap, 1-6% of wetting agent, 3-10% of anticaking agent, 1-5% of white carbon black and 100% of ammonium sulfate; the wetting agent is one or two of methoxy fatty amide benzene sulfonic acid sodium or SP-SC 3; the anticaking agent is polyvinylpyrrolidone.

2. The soluble powder formulation of 50% cartap according to claim 1, wherein: the wetting agent is sodium methoxy fatty amide benzene sulfonate or a combination of the sodium methoxy fatty amide benzene sulfonate and SP-SC 3; and the mass ratio of the methoxyl fatty amide benzene sulfonic acid sodium to the SP-SC3 is 1: 3-3: 1.

3. The soluble powder formulation of 50% cartap according to claim 2, wherein: 50% of cartap, 2-4% of wetting agent, 4-6% of anticaking agent, 2-3% of white carbon black and ammonium sulfate for supplementing 100%.

4. The 50% cartap soluble powder formulation according to claim 3, wherein: cartap 50%, sodium methoxy fatty acid amide benzene sulfonate 2-4%, polyvinylpyrrolidone 5%, white carbon black 2%, and ammonium sulfate 100%

Or 50% of cartap, 2% of methoxy fatty amide benzene sulfonic acid sodium, SP-SC 32%, 5% of polyvinylpyrrolidone, 2% of white carbon black and 100% of ammonium sulfate.

5. Use of the 50% cartap soluble powder formulation according to any one of claims 1-4 for flying defense.

6. Use of the 50% cartap soluble powder formulation according to any one of claims 1-4 for controlling crop pests.

7. The use according to claim 6, wherein the pest is rice stem borer.

Technical Field

The invention belongs to the field of pesticide preparations, and particularly provides a 50% cartap soluble powder formula and application thereof.

Background

The pesticide is an important material for agricultural production, and has the characteristics of high efficiency, rapidness, convenient operation, wide adaptability, remarkable economic benefit and the like when being used for carrying out chemical control on diseases, pests and weeds. The pesticide can ensure the agricultural harvest, and also cause serious pollution to the environment and serious harm to the health of human beings and the survival of animals and plants. Therefore, the existing pesticide is reasonably utilized through formulation modification, the pesticide effect is improved, the residual toxicity is reduced, and the pesticide composition has great significance for sustainable development of agriculture. The agricultural department proposes three improvements, three thrusts, three reductions and one improvement: the prevention and control concept is improved, and green prevention and control is promoted; the medicine application technology is improved, and scientific medicine application is promoted; improve the organization mode and promote the prevention and control of the system. The airplane pesticide application of ground large-scale plant protection machinery, unmanned planes and the like is actively promoted, the unified defense and control and specialized plant protection services are vigorously developed, and the fire-fighting development of China is proved to be sufficient in recent years.

Because of the high demand of the liquid for flight control, it is necessary to select a preparation which can be diluted at a high concentration and does not easily block the head, and which does not cause delamination, precipitation and precipitation within a certain period of time. In particular, the method has high requirements on the properties of solid preparations, such as the wetting property, the dissolution degree and the solution stability of soluble powder, the long-lasting foaming property and the like.

Cartap is a derivative pesticide of nereistoxin; has systemic, stomach toxic, contact killing and food refusal effects; the effect is rapid; the toxicological mechanism is to block the transmission impulse action of nerve cell junction in central nervous system, so as to paralyze insects; and the time and the pesticide are saved when various pests are concurrent. The indexes of wettability, dissolution degree, solution stability, persistent foamability and the like of 50% cartap wettable powder in the current market are relatively poor, so that a spray head is easily blocked when the cartap is applied in a flying defense manner, and the cartap wettable powder is not suitable for the application of the flying defense. Therefore, the cartap wettable powder with better wetting property, dissolution degree, solution stability and durable foamability is urgently needed to be developed.

Disclosure of Invention

The invention belongs to the field of pesticide preparations, and particularly provides a 50% cartap soluble powder formula and application thereof. The specific technical scheme is as follows:

the 50% cartap soluble powder formula is characterized in that: comprises the following components in percentage by weight: 50% of cartap, 1-6% of wetting agent, 3-10% of anticaking agent, 1-5% of white carbon black and 100% of ammonium sulfate; the wetting agent is one or two of methoxy fatty amide benzene sulfonic acid sodium or SP-SC 3; the anticaking agent is polyvinylpyrrolidone.

In the preferable formula, the cartap is 50 percent, the wetting agent is 2 to 4 percent, the anticaking agent is 4 to 6 percent, the white carbon black is 2 to 3 percent, and the ammonium sulfate is added to make up 100 percent.

Preferably, the wetting agent is sodium methoxy fatty amido benzene sulfonate or a combination of the sodium methoxy fatty amido benzene sulfonate and SP-SC 3; and the mass ratio of the methoxyl fatty amide benzene sulfonic acid sodium to the SP-SC3 is 1: 3-3: 1. More preferably, the mass ratio of the sodium fatty amide benzene sulfonate to the SP-SC3 is 1: 1.

The preferable 50% cartap soluble powder formula is as follows: 50% of cartap, 2-4% of methoxy fatty amide benzene sulfonic acid sodium, 5% of polyvinylpyrrolidone, 2% of white carbon black and 100% of ammonium sulfate; or 50% of cartap, 2% of methoxy fatty amide benzene sulfonic acid sodium, SP-SC 3%, 5% of polyvinylpyrrolidone, 2% of white carbon black and 100% of ammonium sulfate.

The 50% cartap soluble powder can be used for flying prevention.

The application of 50% cartap soluble powder formulation for preventing and treating crop pests. Is preferably used for rice stem borer.

Compared with the prior art, the invention has the following beneficial effects:

1. the existing cartap soluble powder product has the defects of caking and melting due to heat storage, poor flowability and influence on use. The 50% cartap soluble powder prepared by the invention has qualified heat storage stability, no color change, no agglomeration and no odor change;

2. the water-soluble emulsion has better wettability, dissolution degree, solution stability and lower lasting foamability, and meets the current requirements of spraying and applying by airplanes;

3. the 50% cartap soluble powder prepared by the invention has better prevention and treatment effect on rice stem borers.

4. The verification proves that the auxiliary agent combination formula can be used for preparing various nereistoxin pesticide soluble powder.

Detailed Description

The invention will be better understood from the following examples. However, those skilled in the art will readily appreciate that the description of the embodiments is only for illustrating the present invention and should not be taken as limiting the invention as detailed in the claims.

Example 1: performance test of 50% cartap soluble powder preparation

Test agent formulation: see Table 1

Table 1: 50% cartap soluble powder formula

Remarking: the preparation method is carried out by adopting a jet milling method.

And (4) formula 8: 50% cartap soluble powder (market purchase)

The test method comprises the following steps:

determination of cartap mass fraction: high performance liquid chromatography, see GB 22613-2008;

and (3) measuring moisture: the method is carried out according to the azeotropic distillation method in GB/T1600-2001;

and (3) pH range determination: the method is carried out according to a pH meter method in GB/T1601-1993;

and (3) measuring the wetting time: the method is carried out according to the method in GB/T5451-2001;

determination of the degree of dissolution and solution stability: reference GB 22613-2008;

determination of the permanent foaming: reference to 4.11 in HG/T2467.5;

determination of Heat storage stability: the method is carried out according to the method in GB/T19136-2003;

and (3) testing results:

the results of the performance tests of the soluble powder formulations of formulas 1-8 are shown in Table 2; the test results of the formulas 1 to 8 show that the control project indexes of the wettable powder of the formulas 1 to 8 are all qualified.

Compared with the formula 1 or the formula 2, the formula 3 and the formula 4 have the advantages that the selection of the wetting agent has great influence on the wetting performance, the dissolving degree, the solution stability and the lasting foamability of the soluble powder; the wetting properties, dissolution degree and solution stability, and the long-lasting foamability of formulation 3 were 25s, 0.25%, and 0.02%, 8s, respectively; the wetting properties, degree of dissolution and solution stability, and long-lasting lather of formulation 4 were 28 seconds, 0.30% and 0.04%, 7 seconds, respectively; formulations 1 and 2 have poor related performance; it can be seen that the preferred wetting agent is sodium methoxy fatty amidobenzenesulfonate + SP-SC3, or sodium methoxy fatty amidobenzenesulfonate.

Compared with the formula 5, the formula 3 shows that the anti-caking agent polyvinylpyrrolidone has greater influence on the wetting property, the dissolution degree, the solution stability and the lasting foamability of the soluble powder; after the anticaking agent is added into the formula 3, the related performance of the anticaking agent is greatly improved.

Compared with the formula 8 (sold in the market), the wetting property, the dissolving degree, the solution stability and the lasting foamability of the formula 3 and the formula 4 are greatly improved, and the formula 3 and the formula 4 can be suitable for flying defense.

Table 2: performance test of 50% cartap soluble powder preparation

Example 2: field control effect test of 50% cartap soluble powder

Test objects: rice stem borer

The test method comprises the following steps: drug treatment and blank controls were set and repeated three times. And (3) applying the pesticide for 1 time by using an unmanned aerial vehicle in the tillering stage of the rice to prevent and control the rice stem borers, counting the reduction rate of insect population 7 days after the pesticide is applied, and calculating the prevention effect. Unmanned aerial vehicle parameters: the model of the super-flying type P20 has the flying speed of 3m/s and the flying height of 2.0m, and the water consumption for spraying is 1.5L/mu. The water consumption for manual spraying is 45L/mu.

And (3) testing results: the cartap soluble powder prepared by the invention has higher prevention and treatment effect on rice stem borers; and the prevention effect of the formula 3 is obviously higher than that of the formula 4, and compared with manual spraying, the prevention effect can be improved by flying prevention.

Table 3: 50% cartap soluble powder field control effect

The above description is only a preferred embodiment of the present invention, and it is obvious to those skilled in the art that modifications may be made without departing from the scope of the present invention, and such modifications are also within the scope of the present invention.