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Mixed formulation for Chinese pear quarantine treatment and low temperature treatment technology thereof

A mixed dosage form and a technology for pears are applied in the field of quarantine treatment of pathogenic fungi and exophagous pests in pears, which can solve the problems of lack of methods and standards, and achieve the effects of short treatment time, avoiding adverse effects and low chemical residues.

Inactive Publication Date: 2012-08-01
CHINESE ACAD OF INSPECTION & QUARANTINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, post-harvest and pre-export quarantine treatment of pears, especially the quarantine treatment of pear diseases, still lack a set of effective methods and standards

Method used

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  • Mixed formulation for Chinese pear quarantine treatment and low temperature treatment technology thereof
  • Mixed formulation for Chinese pear quarantine treatment and low temperature treatment technology thereof
  • Mixed formulation for Chinese pear quarantine treatment and low temperature treatment technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The 10% imidacloprid wettable powder with a purity of 99% and the 50% imazalil emulsifiable concentrate with a purity of 99% were diluted 1:200 and 1:833, respectively, to prepare the mixed drug working solution.

Embodiment 2

[0016] At a temperature of 5°C, different concentrations of imidacloprid were used to treat the mature larvae of Psyllium pears, and the killing effect was observed after treatment. LC50 is the concentration of imidacloprid required for 50% killing rate, and LC95 is the concentration of imidacloprid required for 95% killing rate.

[0017] Table 1 Indoor toxicity test of different pesticides to control pear psyllid

[0018]

Embodiment 3

[0020] At a temperature of 5°C, the mature larvae of the hawthorn spider mite were treated with different concentrations of imidacloprid, and the killing effect was observed after treatment. LC50 is the concentration of imidacloprid required for 50% killing rate, and LC95 is the concentration of imidacloprid required for 95% killing rate.

[0021] Table 2 Indoor toxicity test of different pesticides to control hawthorn Tetranychus

[0022]

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Abstract

The invention discloses a mixed formulation for Chinese pear pathogenic fungi and ectophagous pest quarantine treatment and low temperature treatment technology thereof. The mixed formulation is characterized in that: the medicament is the mixed formulation of 500ppm imidacloprid and 600ppm imazalil; and the treatment condition is that the Chinese pear is soaked in the mixed formulation at the temperature of between 0 and 5 DEG C for 10 minutes. The mixed formulation can be used under the refrigeration condition, has good effect of killing Alternaria kikuchiana carried by the Chinese pear andinternationally concentrated quarantining pests such as pear psylla and Tetranychus viennensis Zacher, has low residue and no phytotoxicity on the Chinese pear, and can be used for quarantine treatment after the Chinese pear is picked and before the Chinese pear is loaded and transported.

Description

technical field [0001] The invention relates to the quarantine treatment technology of pear pathogenic fungi and external feeding harmful organisms, in particular to a mixed dosage form for the quarantine treatment of pears and its low-temperature treatment technology. Background technique [0002] Ya pear (Pyrus bretschneideri Rehd.) is one of the most well-known varieties of pears in China. It is known for its beautiful fruit shape, fresh and elegant color, thin skin and tender meat, sweet and refreshing taste. Ya pears from Hebei and Shandong began to be exported to the United States in 1997, and later became the main fruit varieties exported to the United States, Canada, the European Union, Australia, Japan and Southeast Asia. It is a major industry for local economic development and farmers' income increase. Among them, Hebei Province has a planting area of ​​3.5 million mu and an output of more than 2.5 million tons, ranking first in China, accounting for 31.70% of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154A23B7/05
Inventor 王跃进刘波刘涛李丽张广平詹国平
Owner CHINESE ACAD OF INSPECTION & QUARANTINE
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