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Insecticidal composition having synergism

An insecticidal composition and technology for insects, which are applied in the directions of pesticides, applications, biocides, etc., can solve the problems of easy generation of drug resistance by pests, the inability of pests to continue to feed, crops easily caused by phytotoxicity, etc., and reduce the use of pesticides in the field. The effect of reducing the amount of pesticide residues and improving the persistence

Inactive Publication Date: 2013-07-10
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drug has good quick-acting effect, but poor persistent effect. It needs a higher dose to control Plutella xylostella, and it is easy to cause phytotoxicity to crops.
[0003] Dihydrazide insecticides are a class of novel insecticides with a mechanism of action discovered by Rohm-Haas in the mid-eighties. Hydroxyecdysone, which causes the pests to molt prematurely, resulting in the inability to complete the molt, the pests cannot continue to feed, and die after a few days
However, such insecticides are not fast-acting, and pests are prone to develop resistance when used alone

Method used

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  • Insecticidal composition having synergism
  • Insecticidal composition having synergism
  • Insecticidal composition having synergism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: 40% diafenthiuron·tebufenozide suspension concentrate (diafenthiuron: tebufenozide=1:1)

[0044]

[0045] The active ingredient, dispersant, wetting agent and water are uniformly mixed according to the formula ratio, and the 40% diafenthiuron·tebufenozide suspension concentrate is obtained after high-speed shearing.

[0046] 25% diafenthiuron suspension concentrate, 20% tebufenozide suspension concentrate, and 40% diafenthiuron·tebufenozide suspension concentrate were used to control Plutella xylostella. 1 day after spraying, the control effects were 71.33%, 61.62% and 80.87%, respectively; 7 days after spraying, the control effects of each agent were 74.61%, 77.42% and 98.27%, respectively; 15 days after spraying, the control effects were respectively The ratios were 51.52%, 63.24% and 85.76%. The compounding of diafenthiuron and tebufenozide had obvious synergistic effect, and the control effect, quick effect and long-lasting effect on diamondback moth w...

Embodiment 2

[0049]Example 2: 30% diafenthiuron·furafenozide EC (diafenthiuron: furafenozide=5:1)

[0050]

[0051] The original drug containing active ingredients, emulsifier and co-solvent, etc., are sequentially added to the mixing tank according to the formula ratio, and stirred evenly to obtain 30% diafenthiuron·furafenozide EC.

[0052] 25% diafenthiuron EC, 10% diafenthiuron SC, and 30% diafenthiuron·furafenozide EC were used to control Plutella xylostella. The control effects of 1 day after application were 73.58%, 63.12% and 89.99%, and 7 days after application, the control effects of each agent were 85.68%, 75.67% and 97.88%, and 15 days after application, the control effects were respectively The ratios were 53.52%, 65.41% and 87.36%. The synergistic effect of diafenthiuron and furafenozide was obvious after compounding, and the control effect, quick effect and long-lasting effect on diamondback moth were obviously better than single agent.

[0053] Table 6 present embodimen...

Embodiment 3

[0055] Example 3: 50% diafenthiuron·methoxyfenozide water dispersible granules (diafenthiuron:methoxyfenozide=1:1)

[0056]

[0057] The active ingredient, dispersant, wetting agent, disintegrating agent and filler are mixed evenly according to the ratio of the formula, crushed into a wettable powder by airflow, and then a certain amount of water is added to mix and extrude to make the material. After drying and sieving, 50% diafenthiuron·methoxyfenozide water-dispersible granules were obtained.

[0058] 25% diafenthiuron suspension concentrate, 240g / L methoxyfenozide suspension concentrate, and 50% diafenthiuron·methoxyfenozide water dispersible granule were used to control Plutella xylostella. The control effects of 1 day after application were 68.66%, 56.51% and 88.86%, respectively; 7 days after application, the control effects of each agent were 82.61%, 78.55% and 92.16%, and 15 days after application, the control effects were respectively The ratios are 68.34%, 74.19...

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PUM

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Abstract

The invention discloses an insecticidal composition having synergism. The insecticidal composition has active ingredients comprising diafenthiuron and any one of bishydrazide insect growth regulators such as tebufenozide, methoxyfenozide, halofenozide, fufenozide, chromafenozide and 1,2-dibenzoyl-1-tert-butylhydrazine. The insecticidal composition has obvious synergism, can be used for preventing and controlling insects of crops such as vegetables, and has obvious effects of preventing and controlling plutella xylostella.

Description

technical field [0001] The invention relates to an insecticidal composition, especially an insecticidal composition containing diafenthiuron and a dihydrazide insect growth regulator. Background technique [0002] Diafenthiuron (diafenthiuron) is a new type of thiourea high-efficiency insecticide and acaricide. It has contact killing, stomach poisoning, systemic and fumigation effects, and can control aphids, whiteflies, leafhoppers, etc. on various crops and ornamental plants. Pests and mites. The pesticide has good quick-acting effect, but poor persistent effect. It needs a higher dose to control Plutella xylostella, and it is easy to cause phytotoxicity to crops. [0003] Dihydrazide insecticides are a class of novel insecticides with a mechanism of action discovered by Rohm-Haas in the mid-eighties. Hydroxyecdysone causes the pest to molt in advance, resulting in the inability to complete the molt, the pest cannot continue to feed, and dies after a few days. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/30A01N37/28A01N37/40A01N43/12A01P7/04
Inventor 任太军曹明章张华东李欧燕孔建李广泽
Owner SHENZHEN NOPOSION AGROCHEM
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