Insecticidal composition containing fipronil and uses thereof

A fipronil and insecticide technology, applied in the field of pesticide compositions, can solve the problems of large pesticide residues, waste, loss by insect disasters, etc., and achieve obvious control effect

Inactive Publication Date: 2008-05-07
张少武
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Isoprocarb and Memecarb: Both belong to substituted phenyl carbamate compounds, they are the same in killing insects, they are both prominent in preventing rice planthoppers, have strong contact killing effect, quick liquid medicine, but have short-lasting effects
[0004] According to the data from the National Agricultural Technology Extension Service Center, due to climate change in recent years and the impact of continuous migration of foreign insect sources, at present, large-scale occurrences are common in South China, Southwest China, and Jiangnan regions every year. In 2007 alone, the occurrence area reached 35 million mu. Above, it increased by more than 50% in 2006, and the scope of occurrence is getting wider and wider, the resistance is getting bigger and bigger, generation overlap is serious, reproduction and migration are fast, and large outbreaks in local areas are very common. At present, due to the above single-dose formula The long-lasting effect and the quick-acting effect cannot be unified, and the resistance of a single agent is high, so it cannot be used continuously, resulting in a large area of ​​insect damage and serious losses. , Dichlorvos and Dimehypo can no longer control the harm of planthoppers
However, these compound varieties have the disadvantages of large amount of use, large amount of residual pesticides, extremely serious waste, and inability to achieve a good control effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Fipronil and thiodicarb are mixed to control rice planthoppers, by weight (unless otherwise specified, all refer to weight parts) 2.5 parts of fipronil, 56.25 parts of thiodicarb, wetting and dispersing agent alkylaryl polyoxyethylene 6 parts of base ether, 5 parts of antifreeze ammonium sulfate, 0.5 part of thickener xanthan gum, 0.6 part of defoamer polyether defoamer, and water to 100 parts to make a suspension. The formula is diluted and sprayed by 1500-2000 times, and the field control effect is 90.31% 5 days after application. If the invention uses 5% fipronil suspension concentrate as reference object and 37.5% thiodicarb suspension concentrate as reference object, and uses the same method, the control effects after 5 days of medicine are respectively 65.32% and 63.05%. It can be seen that the control effect of the mixed preparation is 1.5 to 2 times higher than that of the two single agents.

Embodiment 2

[0032] Fipronil and isoprocarb are mixed to prevent and control rice planthoppers, according to 5 parts by weight of fipronil (unless otherwise specified, all refer to parts by weight), 10 parts of isoprocarb, and 10 parts of emulsifier polyoxyethylene ether. The solvent cyclohexanone is 5 parts, and the solvent toluene is supplemented to 100 parts to make an emulsifiable concentrate. The formula is diluted and sprayed by 1500-2000 times, and the field control effect is 90.59% 5 days after spraying. This invention takes 5% fipronil emulsifiable concentrate as reference object and 20% isoprocarb emulsifiable concentrate as reference object, uses according to the same method, and the preventive effect after 5 days of medicine is respectively 65.32% and 62.25%, obviously it can be seen that the mixture The control effect of the preparation is more than 1.5 times higher than that of the two single doses.

Embodiment 3

[0034] Fipronil and amecarb are mixed to prevent and control rice planthoppers, by weight (unless otherwise specified, all refer to weight parts) 2.5 parts of fipronil, 18.75 parts of amecarb, wetting agent alkyl succinate sulfonate 6 parts, 8 parts of polyvinylpyrrolidone as a dispersant, 5 parts of polyethylene glycol No. 72 as an adhesive, 8 parts of sodium carbonate as a disintegrating agent, and 100 parts of filler kaolin to make water-dispersible granules. The formula is diluted and sprayed by 1000-2000 times, and the control effect in the field is 94.33% within 72 hours after spraying. This invention takes 80% fipronil water dispersible granules as reference object and 25% memocarb water dispersible granules as reference object, use according to the same method, 5 days after the medicine, the control effect is respectively 78.32% and 63.05%, obviously can It can be seen that the mixed preparation is more than 1.5 times higher than both single agent control effects.

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PUM

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Abstract

The invention discloses a pesticide component containing fipronil and the application thereof. The invention is composed of component A and component B, wherein, the component A is the fipronil, the component B is composed of any one of thiodicarb, isoprocorb or metolcarb, wherein, the component B also comprises auxiliary materials, and the component A and the component B form a compound dispensed component according to the mass proportion of 0.1 to 10 shares: 99.9 to 90 shares. The compound dispensed component can be made into various application dose types, and the dose types comprise water dispersion granule, wettable powder, suspending agent and emulsifiable oil. The cost is low, the dosage is low, the prevention effect is good, the durable period is long, the use is convenient, and the residual on the crop is less; according to the adjustment of the compound dispensing proportion of the medicine and the auxiliary materials, the characteristic that the prevention effect of the invention can be enhanced by 1.5 times can be reached, and the invention has the synergic function for pest killing, and is used for rice planthopper prevention.

Description

technical field [0001] The invention relates to a pesticide composition, in particular to an insecticide composition containing fipronil for the control of rice planthopper and its application. technical background [0002] Thiodicarb belongs to carbamoyl oxime insecticides. It has high insecticidal activity and low toxicity. , three stem borers have excellent control. [0003] Isoprocarb and Memecarb: Both belong to substituted phenyl carbamate compounds, they are the same in killing insects, they are both outstanding in preventing rice planthoppers, they have strong contact killing effect, quick liquid medicine, but they have short-lasting effects. [0004] According to the data from the National Agricultural Technology Extension Service Center, due to climate change in recent years and the impact of continuous migration of foreign insect sources, at present, large-scale occurrences are common in South China, Southwest China, and Jiangnan regions every year. In 2007 alone...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/40A01P7/04A01N47/10
Inventor 张少武苏连碧樊小龙张秋芳李红超
Owner 张少武
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