CN107467057B - Insecticidal composition containing spirotetramat and deltamethrin and application thereof - Google Patents
Insecticidal composition containing spirotetramat and deltamethrin and application thereof Download PDFInfo
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- CN107467057B CN107467057B CN201710747428.6A CN201710747428A CN107467057B CN 107467057 B CN107467057 B CN 107467057B CN 201710747428 A CN201710747428 A CN 201710747428A CN 107467057 B CN107467057 B CN 107467057B
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- deltamethrin
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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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- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
- A01N47/06—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom containing —O—CO—O— groups; Thio analogues thereof
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- Pest Control & Pesticides (AREA)
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Abstract
The invention discloses an insecticidal composition containing spirotetramat and deltamethrin and application thereof, and relates to the technical field of pesticide compounding. The mass ratio of the spirotetramat to the deltamethrin serving as the effective components in the insecticidal composition is 1-50: 50-1, and preferably 1-25: 25-1. The spirotetramat and deltamethrin insecticidal composition is scientific in compounding, has an obvious synergistic effect, has an excellent effect of controlling agricultural pests such as lepidoptera pests such as rice leaf rollers and coleoptera pests such as grubs, has quick action and persistence, reduces the using amount of a medicament, improves the medicament effect, delays the medicament resistance, reduces the control cost, and has a good popularization and application prospect.
Description
Technical Field
The invention belongs to the technical field of pesticide compounding, and particularly relates to an insecticidal composition of spirotetramat and deltamethrin and application thereof.
Background
In the process of agricultural pest control, chemical control is still the most effective means for guaranteeing agricultural production, but the resistance development of pests is not ignored, and pesticide compounding is an important way for improving the control effect and delaying the resistance development of pests.
Deltamethrin is one of the most virulent pyrethroids insecticides, has the effects of contact killing and stomach poisoning, rapid contact killing effect, strong knockdown force, no fumigation and systemic effect and has a repelling effect on some pests at high concentration. The pesticide has long lasting period and wide insecticidal spectrum, and has good killing effect on various pests such as Lepidoptera, Orthoptera, Thysanoptera, Hemiptera, Diptera, Coleoptera and the like.
The systemic insecticide Spirotetramat (Spirotetramat) is a novel tetronic acid compound, can move upwards and downwards in the whole plant body after being applied, and the unique systemic property can protect newborn stems, leaves and roots and prevent eggs and larvae of pests from growing. Due to the unique action mechanism, the insecticidal composition can effectively prevent and control pests which have resistance to the existing insecticide, and has wide insecticidal spectrum and long lasting period.
Spirotetramat causes larva death by interfering with fat biosynthesis of insects and reduces reproductive capacity of adults, while deltamethrin acts by delaying closing of a sodium (Na) gate, resulting in sodium ions (Na)+) Increased influx, prolonged time, and potassium ion (K)+) Delayed outflow time, prolonged negative post-potential, depolarization of the axon membrane, and spirotetramat has good persistence but poor fast-acting propertyDeltamethrin has a fast knockdown property. Therefore, the spirotetramat and the deltamethrin are compounded, so that the compound pesticide has good quick-acting property and lasting property, effectively exerts the advantages of a single agent, makes up for the defects of the single agent, reduces the application dosage of the single agent, improves the use safety of the single agent, delays the generation and development of the drug resistance of pests, and meets the development requirement of pesticide application reduction and synergism.
Disclosure of Invention
The invention aims to solve the technical problem of providing an insecticidal compound containing spirotetramat and deltamethrin and application thereof.
The invention solves the technical problems through the following technical scheme:
the insecticidal composition is prepared by binary compounding of spirotetramat and deltamethrin, wherein the mass ratio of the spirotetramat to the deltamethrin is 1-50: 50-1, and further research shows that the synergistic effect is good when the mass ratio of the spirotetramat to the deltamethrin is 1-25: 25-1.
The insecticidal composition also contains auxiliary components of pesticide preparations so as to prepare formulations suitable for agricultural use. The auxiliary components of the pesticide preparation are one or more of a solvent, a filler, an emulsifier, a dispersant, a wetting agent, a binder, a lubricant, a stabilizer, an antifreezing agent or a film-forming agent.
The insecticidal composition can be prepared into any dosage form suitable for agriculture according to a method known by technical personnel in the technical field, and the better dosage form can be a suspending agent, a water dispersible granule, an aqueous emulsion, a granule or a seed coating agent.
The application of the insecticidal composition can be applied to the preparation of pesticide preparations for controlling grub or/and rice leaf rollers and other pests.
Compared with the prior art, the invention has the advantages that the combined synergy is realized by compounding the spirotetramat and the deltamethrin which have different action mechanisms, the good control effect is realized on agricultural pests such as lepidoptera, coleoptera and the like, the good control effect is especially realized on cnaphalocrocis medinalis and grubs, the control spectrum is expanded by compounding the spirotetramat and the deltamethrin, the dosage is reduced, the quick action is improved, the lasting effect is ensured, the development of the pest resistance is reduced, the cost is reduced, and the pollution to the environment is reduced.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description will be given with specific embodiments, but the present invention is by no means limited to these examples, and the following is only a better embodiment of the present invention, and is only used for explaining the present invention, and not to be construed as limiting the scope of the present invention. In these examples, all percentages are by weight unless otherwise indicated.
In order to prevent and control lepidoptera pests and coleoptera pests in agricultural production, the inventor carries out synergistic research of mutual compounding of spirotetramat and deltamethrin. The test adopts rice leaf rollers and grubs as test objects, and the specific method comprises the following steps:
indoor combined toxicity experiment of insecticidal composition containing spirotetramat and deltamethrin
Reagent to be tested: spirotetramat and deltamethrin
The tested pests comprise rice leaf rollers and peanut grubs (larvae of the 3 rd-age Aerugo Wiegmann).
The experimental method comprises the following steps:
an indoor bioassay method for rice leaf rollers comprises the following steps: the toxicity of the spirotetramat and the deltamethrin in different mass ratios to the larvae which are just hatched by the rice leaf roller is determined by a rice seedling soaking method.
An indoor bioassay method for peanut grubs comprises the following steps: according to the soil mixing method introduced by Xiening and Yijuping, the grub is fed with sprouted peanuts, and the toxicity of the different mass ratios of the spirotetramat and the deltamethrin to the grub (3-year-old larvae) is measured.
The combined virulence evaluation method comprises the following steps: the spirotetramat is used as a standard medicament A, the deltamethrin is used as a test reagent B, the co-toxicity coefficient (CTC) of the two medicaments is calculated by adopting a Sun Yunpei method, and the judgment standard of the synergistic effect of the mixed medicament formula is as follows according to the regulation of agricultural chemical verification of Ministry of agriculture: the co-toxicity coefficient is more than 120, so that the synergistic effect is achieved; the co-toxicity coefficient is 80-120, which is additive effect; the co-toxicity coefficient is less than 80, and the synergistic ratio is determined for the antagonism.
The experimental results are shown in table 1 and table 2.
TABLE 1 results of determining co-toxicity coefficient of rice leaf roller for primary incubation larva by comparing different mass ratios of spirotetramat (A) and deltamethrin (B)
| Compound medicament | Mass ratio of | Actual virulence index | Theoretical virulence index | CTC |
| A:B | 1:0 | 100.00 | 100.00 | - |
| A:B | 0:1 | 275.20 | - | - |
| A:B | 1:50 | 328.31 | 271.76 | 120.81 |
| A:B | 1:25 | 333.90 | 268.46 | 124.38 |
| A:B | 1:10 | 339.45 | 259.27 | 130.93 |
| A:B | 1:4 | 327.75 | 240.16 | 136.47 |
| A:B | 1:2 | 312.94 | 216.80 | 144.25 |
| A:B | 2:1 | 301.80 | 158.40 | 190.50 |
| A:B | 4:1 | 251.29 | 135.04 | 186.09 |
| A:B | 10:1 | 213.37 | 115.92 | 184.07 |
| A:B | 25:1 | 171.20 | 106.74 | 160.39 |
| A:B | 50:1 | 155.19 | 103.44 | 150.03 |
Note: the standard agent is A, and the test agent is B
The compound test result in table 1 shows that the compounding of the spirotetramat and the deltamethrin has obvious synergistic effect on the rice leaf roller, the highest co-toxicity coefficient is 190.50, and the effect is better than the single effect of the two effective components.
TABLE 2 Co-toxicity coefficient determination results of different mass ratios of spirotetramat (A) and deltamethrin (B) to grubs (larvae at 3 rd instar)
| Compound medicament | Mass ratio of | Actual virulence index | Theoretical virulenceIndex of refraction | CTC |
| A:B | 1:0 | 100.00 | 100.00 | - |
| A:B | 0:1 | 312.41 | - | - |
| A:B | 1:50 | 374.12 | 308.25 | 121.37 |
| A:B | 1:25 | 394.46 | 304.34 | 129.61 |
| A:B | 1:10 | 399.58 | 293.10 | 136.33 |
| A:B | 1:4 | 385.73 | 269.93 | 142.90 |
| A:B | 1:2 | 431.18 | 241.61 | 178.46 |
| A:B | 2:1 | 330.46 | 170.80 | 193.48 |
| A:B | 4:1 | 299.76 | 142.48 | 210.39 |
| A:B | 10:1 | 197.27 | 119.31 | 165.34 |
| A:B | 25:1 | 143.63 | 108.17 | 132.78 |
| A:B | 50:1 | 129.32 | 104.65 | 123.57 |
Note: the standard agent is A, and the test agent is B
The compound test result in table 2 shows that the spirotetramat and deltamethrin compound has obvious synergistic effect on grub larvae of 3 th age, the highest co-toxicity coefficient is 210.39, and the effect is better than the single effect of the two effective components.
The insecticidal composition can be prepared into any one of dosage forms suitable for agriculture by a known method according to the compounding effect of the two, and the better dosage forms are suspending agents, water dispersible granules, emulsion in water, granules and seed coating agents. All percentages in the formulation are by weight. The processing technology of various dosage forms of the composition is the prior art, and can be changed according to different conditions.
Table 3 is a part of examples of component formulas of different formulations of spirotetramat and deltamethrin.
Table 3 component formulation of the examples
Pesticide effect test for field prevention and control of rice leaf roller
The pesticide effect test of the prepared suspending agent, the water dispersible granules and the water emulsion compounded by the spirotetramat and the deltamethrin is carried out on the rice leaf roller in the field, 240g/L of spirotetramat SC and 25g/L of deltamethrin WP are used as control medicaments, the test is carried out according to the pesticide field pesticide effect test criteria of Ministry of agriculture, and the test results are shown in Table 4.
TABLE 4 Spirotetramat and deltamethrin compounded suspending agent for preventing and treating cnaphalocrocis medinalis
The test results in Table 4 show that the spirotetramat and deltamethrin compound suspending agent, the water dispersible granules and the emulsion in water have good control effect on the cnaphalocrocis medinalis, and are superior to the control effect of a single agent.
The drug effect test of the granular formulation compounded by the spirotetramat and the deltamethrin and the seed coating agent on the grubs in the field is carried out, 240g/L of spirotetramat suspending agent and 25g/L of deltamethrin wettable powder are used as contrast agents, the test is carried out according to the pesticide field drug effect test criteria of Ministry of agriculture, and the test results are shown in Table 5.
TABLE 5 Spirotetramat and deltamethrin compounded suspending agent for preventing and treating cnaphalocrocis medinalis
Table 5 the test results show that: the granular formulation and the seed coating agent compounded by the spirotetramat and the deltamethrin have excellent effect of controlling the peanut grubs, are superior to the single-agent control effect, and are safe to peanuts.
The compound composition of the spirotetramat and the deltamethrin has better control effects on rice leaf rollers and grubs than single agents, is safe to crops, has a unique action mechanism, a small unit dosage, good quick-acting performance and a long lasting period compared with the single agents, meets the requirement of reduction and synergism of pesticides, and the prepared preparation is environment-friendly, causes little pollution to the environment and guarantees the sustainable development of agriculture.
Claims (3)
1. The application of the insecticidal composition in preparation of the drug for preventing and treating the grubs is characterized in that the active ingredients of the insecticidal composition are spirotetramat and deltamethrin, wherein the mass ratio of the spirotetramat to the deltamethrin is 1-50: 50-1.
2. The use of the insecticidal composition according to claim 1, wherein the formulation of the insecticidal composition is granules or seed coating.
3. The use of an insecticidal composition according to claim 2, wherein said composition comprises pesticide adjuvants which are one or more of solvents, fillers, emulsifiers, dispersants, wetting agents, binders, lubricants, stabilizers, preservatives, anti-freeze agents, colorants and film-forming agents.
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| CN108294045A (en) * | 2018-03-15 | 2018-07-20 | 重庆中邦药业（集团）有限公司 | One vegetative insecticide composition, preparation and its application |
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| CN102379299A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Ultralow volume liquid containing spirotetramat |
| CN103250715A (en) * | 2012-02-21 | 2013-08-21 | 陕西美邦农药有限公司 | Insecticidal composition comprising spirotetramat and pyrethroid |
| CN104115850A (en) * | 2014-06-12 | 2014-10-29 | 广东中迅农科股份有限公司 | Insect and mite killing composition containing etoxazole and spirotetramat |
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