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Pyrethroid-containing combined pesticidal preparation

A technology for pyrethroids and pesticide preparations, which is applied in the field of pesticide compounding and its preparation, can solve the problems such as the rapid increase in the resistance of pests and mites, and achieve the effects of improving the application effect, expanding the scope of application and making up for deficiencies.

Inactive Publication Date: 2012-05-02
广西德丰富化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defect of pyrethroid insecticides is that the resistance of pest mites to such agents increases rapidly. At present, many pest mites such as cotton bollworm, diamondback moth, whitefly, and two-spotted spider mite are resistant to pyrethroids. Insecticide-like insecticides have developed resistance above the moderate level

Method used

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  • Pyrethroid-containing combined pesticidal preparation
  • Pyrethroid-containing combined pesticidal preparation
  • Pyrethroid-containing combined pesticidal preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 5% spirobudiclofen·beta-cypermethrin microemulsion

[0066] 2.5 grams of spirodiclofen, 2.5 grams of beta-cypermethrin, 10 grams of dimethylformamide, 5 grams of polyoxyethylene oleate, 5 grams of calcium dodecylbenzenesulfonate, and make up to 100 grams of water.

[0067] The original drug, solvent and emulsifier are added together to dissolve into a uniform oil phase; under high-speed stirring, the oil phase is mixed with water to prepare 5% spirobudiclofen·beta-cypermethrin microemulsion.

[0068] The mixed preparation of this embodiment is applied to the control of cabbage pests (Plutella xylostella and aphids). The control effect is not much different, ranging from 80% to 85%, while the control effect of beta-cypermethrin on diamondback moth is very poor, only 43.1%; the compound agent has high control effect on diamondback moth and aphids, both of which are above 90% .

[0069] Table 1, the test result of the present embodiment compound preparation control cabba...

Embodiment 2

[0072] 24% spirobudiclofen·beta-cypermethrin EC

[0073] 20 grams of spirodiclofen, 4 grams of beta-cypermethrin, 5 grams of calcium dodecylbenzenesulfonate (emulsifier), 5 grams of Nongru 2201 (emulsifier), and 100 grams of xylene (solvent).

[0074] Add the active ingredient, emulsifier and solubilizing agent into the mixing kettle according to the formula, and stir evenly to prepare 24% spirobudiclofen·beta-cypermethrin emulsifiable concentrate.

[0075] The mixed preparation of this example is applied to control cucumber pests (whitefly and Liriomyza sativae), and the control effect after 3 days of application is shown in Table 2. It can be seen from Table 2 that the control effect of spirodiclofen against Liriomyza sativae is poor, and that of beta-cypermethrin is relatively poor against whitefly, while the control effect of the compound agent on the two pests is better than that of the single agent.

[0076] Table 2, the test results of the compound preparation of this ...

Embodiment 3

[0080] 22% spirobudiclofen·deltamethrin suspension concentrate

[0081] 2 grams of spirodiclofen, 20 grams of deltamethrin, 6 grams of sodium methylnaphthalene sulfonate formaldehyde condensate (wetting and dispersing agent), 1 gram of xanthan gum (thickener), glycerol (antifreeze) 3 grams, water to make up to 100 grams.

[0082] Active components, dispersant, wetting agent, water and other components are uniformly mixed according to the ratio of the formula, and ground to obtain 22% spirobudiclofen·deltamethrin suspension concentrate.

[0083] The mixed formulation of this example is applied to the prevention and control of jujube pests (slug moths, green ligus), and the control effect 1 day after the application is shown in Table 3. It can be seen from Table 3 that the control effect of the compound agent on jujube tree pests 1 day after the application is significantly higher than that of the two control agents, both reaching more than 85%, indicating that the compound age...

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Abstract

The invention discloses a pyrethroid-containing combined pesticidal preparation. In the combined pesticidal preparation, spirodiclofen and a pyrethroid pesticide serve as active ingredients to be combined, the product maintains the advantages of unique action mechanism, high efficiency and low toxicity of the spirodiclofen, overcomes the defect that the pyrethroid pesticide easily causes resistance, improves an application effect, widens an application range, prolongs the service life and makes up for defects of a single-component pesticide.

Description

technical field [0001] The invention belongs to pesticide mixing and a preparation method thereof, in particular to a mixed pesticide preparation containing pyrethroids. Background technique [0002] Chemical control has always been the main means of pest control in agriculture. In agricultural production, usually several pests and mites occur simultaneously on one crop. Commonly used broad-spectrum insecticides and acaricides often have low activity, such as organophosphorus insecticides; while insecticides with high activity often have a narrow spectrum of control, such as benzoylurea insecticides are only effective on scales. Pteroptera pests are highly effective. [0003] Spirodiclofen is a new pesticide modified on the basis of spirodiclofen. This product has a unique mechanism of action. In addition to the characteristic of long-lasting effect, its activity is 2-3 times higher than that of spirodiclofen. , yellow spider, iron tick, tea yellow mite, cinnabar spider m...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N53/06A01P7/04A01P7/02
Inventor 韦荣相迟海军王鲁李婧婧
Owner 广西德丰富化工有限责任公司
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