CN1335065A

CN1335065A - Insecticide compounded with nimbin and nereistoxin

Info

Publication number: CN1335065A
Application number: CN 01119398
Authority: CN
Inventors: 徐汉虹
Original assignee: South China Agricultural University
Current assignee: South China Agricultural University
Priority date: 2001-06-04
Filing date: 2001-06-04
Publication date: 2002-02-13
Anticipated expiration: 2019-05-28
Also published as: CN1165236C

Abstract

The present invention provides one kind of compounded nimbin pesticide with high efficiency, low toxicity, no pollution high safety to human body and farm animal and less resistance. Owing to the synergistic effect and negative interactive resistance between nimbin and nereistoxin, the pesticide has high pesticidal effect and wide application range and is especially suitable for preventing and killing various pests with resistance to other pesticides.

Description

The pesticidal preparations that nimbin and nereistoxin are mixed

The invention belongs to a kind of mixed insecticide, particularly, relate to nimbin how with other insecticide mixtures.

Because people rely the insecticide that uses a certain type in the chief of the Xiongnu in Acient China for a long time, insect is easy to generate pesticide resistance, causes the chemical dosage of insecticide sharply to increase, and not only increases the weight of peasant's financial burden, contaminated environment, and because the natural enemy of a large amount of kill pests causes the wildness harm of insect.Have a large amount of mixed insecticides in the market, but the overwhelming majority is being mixed between the chemical pesticide, these mixtures mostly contain organic phosphates, toxicity to people and animals is bigger, easily cause the person poultry poisoning, and after the long period used, insect can develop immunity to drugs also.

The objective of the invention is to develop a class is active insecticidal components with the nimbin in the plant neem seed, and after reasonably being mixed with nereistoxin pesticide efficient, low toxicity, acquisition can overcome the nimbin mixed pesticide preparation of pest resistance to insecticide.

The present invention utilizes neem seed to carry out lixiviate, becomes to contain certain density nimbin extract, and extract becomes concentrate after concentrating evaporate to dryness.

The present invention utilizes the nimbin in the plant neem seed to be active insecticidal components, by being mixed with sandworm toxin insecticide such as Padan, thiocyclam etc., and allocating appropriate amount of addition agent into and is prepared from mixed insecticide nimbin+neires toxin wettable powder agent formulation.

Each component content proportioning is in mixed insecticide nimbin+neires toxin wettable powder agent formulation: nimbin content is 0.1-35% (weight); Neires toxin content is 0.1-60% (weight); Wetting agent content is 1-20% (weight); Dispersant is 7-30% (weight); Antiseptic content is 0.1-2.9% (weight); Filer content is 40-75% (weight); Each component summation is 100%.

Wetting agent component in mixed insecticide nimbin+neires toxin wettable powder agent formulation is to be selected from: lignosulfonates, alkylbenzenesulfonate, draw back in powder, the multi-sorbitol ester any one or more; The dispersant component is to be selected from: any one or more in naphthalene sulfonate, alkylsulfonate, polyoxy ethyl ether sulfonate, the diisopropyl phosphate; Preservative component is to be selected from: any one or more in active carbon, the alkaline earth metal; Filler component is to be selected from: any one or more in kaolin, diatomite, the active carbon.

The optimal proportion of each component content is in mixed insecticide nimbin+neires toxin wettable powder agent formulation: nimbin content is 0.3-20% (weight); Neires toxin content is 5-10% (weight); Wetting agent content is 5-15% (weight); Dispersant is 10-25% (weight); Antiseptic content is 1-1.5% (weight); Filer content is 45-65% (weight); Each component summation is 100%.

Mixed insecticide nimbin+neires toxin wettable powder agent formulation adopts conventional pesticide wettable processing technology to get final product in preparation process.

In order to understand essence of an invention better; describe the technology contents of invention below in detail with example, but content of the present invention is not limited thereto.：9％ ( ＋ ) 0.4％ ( ) 8.6％ ( ) 14％ ( ) 14％ ( ) 1％ ( ) 62％ ( ) ：10％ ( ＋ ) 0.6％ ( ) 9.4％ ( ) 12％ ( ) 14％ ( ) 1％ ( ) 63％ ( ) ：50％ ( ＋ ) 1.2％ ( ) 48.8％ ( ) 6％ ( ) 12％ ( ) 1％ ( ) 31％ ( ) ：55％ ( ＋ ) 1.5％ ( ) 53.5％ ( ) 5％ ( ) 10％ ( ) 1％ ( ) 29％ ( ) ：38％ ( ＋ ) 4.5％ ( ) 33.5％ ( ) 5.5％ ( ) 10％ ( ) 1％ ( ) 45.5％ ( ) ：40％ ( ＋ ) 5％ ( ) 35％ ( ) 5％ ( ) 10％ ( ) 1％ ( ) 44％ ( )

Beneficial effect of the present invention is as follows:

1. the present invention is in preparation nimbin+neires toxin wettable powder agent formulation process, by adding The multiple wetting agent of the confession selecting, dispersant, anticorrisive agent and filler, system has deeply solved the seal chinaberry The difficult problems such as poor, the easy pollution of element+neires toxin preparation dispersive property.

2. nereistoxin pesticide belongs to emerging organic synthesis bionic pesticide, and insect is had good touching Kill and stomach poison function, as the insects such as corn borer, striped rice borer, yellow rice borer are had very high preventive effect.

After nimbin and neires toxin are mixed in aforementioned selected ratio, not only kept single dose itself Many merits, and the reduction of the dosage of mixture, drug effect increases substantially, and has remedied nimbin Botanical pesticide is to the tag weakness of weak effect of insect. This mixture is to the exploitation of natural insecticide Application has profound significance.

3. the nimbin pesticide different from nereistoxin two class mechanism of action, the nimbin+sand after being mixed Silkworm endotoxin wettable powder agent formulation has not only enlarged the control of insect spectrum, and to simultaneous insect Uniformly drug effect is arranged, thereby delay even overcome to become sociales after the pest population succession The resistance to the action of a drug. The application effect of this mixture in antagonism snout moth's larva governance process is particularly remarkable.

Since the preparation nimbin+required each material of neires toxin wettable powder agent formulation compatibility and join Than rationally, can greatly alleviate the toxic action to the various pest natural enemies of kill, to ecological environment Infringement and less pollution, be conducive to protect the person poultry safety. That a class can be prevented and treated multiple agricultural evil Worm, it is little that poison is paid effect, and can overcome the nimbin mixture of pest resistance to insecticide.

Claims

1. nimbin+neires toxin wettable powder agent formulation that is mixed and forms by nimbin and nereistoxin pesticide, it is characterized in that the proportioning of each component content is in the mixed insecticide preparation: nimbin content is 0.1-35% (weight); Neires toxin content is 0.1-60% (weight); Wetting agent content is 1-20% (weight); Dispersant is 7-30% (weight); Antiseptic content is 0.1-2.9% (weight); Filer content is 40-75% (weight); Each component summation is 100%.

2. mixed insecticide nimbin according to claim 1+neires toxin wettable powder agent formulation is characterized in that described wetting agent component is to be selected from: lignosulfonates, alkylbenzenesulfonate, draw back in powder, the multi-sorbitol ester any one or more.

3. mixed insecticide nimbin according to claim 1+neires toxin wettable powder agent formulation is characterized in that described dispersant component is to be selected from: any one or more in naphthalene sulfonate, alkylsulfonate, polyoxy ethyl ether sulfonate, the diisopropyl phosphate.

4. mixed insecticide nimbin according to claim 1+neires toxin wettable powder agent formulation is characterized in that described preservative component is to be selected from: any one or more in active carbon, the alkaline earth metal.

5. mixed insecticide nimbin according to claim 1+neires toxin wettable powder agent formulation is characterized in that described filler component is to be selected from: any one or more in kaolin, diatomite, the active carbon.

6. mixed insecticide nimbin according to claim 1+neires toxin wettable powder agent formulation is characterized in that the optimal proportion of each component content in the mixed insecticide wettable powder agent formulation is: nimbin content is 0.3-20% (weight); Neires toxin content is 5-10% (weight); Wetting agent content is 5-15% (weight); Dispersant is 10-25% (weight); Antiseptic content is 1-1.5% (weight); Filer content is 45-65% (weight); Each component summation is 100%.

7. the pesticidal preparations that nimbin according to claim 1 and nereistoxin pesticide are mixed, it is characterized in that the be mixed constituent content of wetting powder of nimbin+Padan of described 55% is: nimbin content is 1.5% (weight); Padan's content is 53.5% (weight); Wetting agent content is 5% (weight); Dispersant is 10% (weight); Antiseptic content is 1% (weight); Filer content is 29% (weight).

8. the pesticidal preparations that nimbin according to claim 1 and nereistoxin pesticide are mixed, it is characterized in that the be mixed constituent content of wetting powder of nimbin+thiocyclam of described 40% is: nimbin content is 5% (weight); Thiocyclam content is 35% (weight); Wetting agent content is 5% (weight); Dispersant is 10% (weight); Antiseptic content is 1% (weight); Filer content is 44% (weight).