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Evaluation method for risks of pesticide to bees

A risk assessment and honeybee technology, which is applied in the field of pesticide risk assessment to bees, can solve the problems of no acute oral toxicity test criteria and achieve the effect of protecting the ecological environment

Pending Publication Date: 2016-07-20
BEIJING ECO SAF TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in terms of primary risk assessment, the United States has formulated the guidelines for the acute exposure toxicity test of pesticides to bees, but there is no guideline for the acute oral toxicity test

Method used

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  • Evaluation method for risks of pesticide to bees
  • Evaluation method for risks of pesticide to bees
  • Evaluation method for risks of pesticide to bees

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Neonicotinoid insecticides are widely used in seed, soil and stem and leaf treatment, the most important application of which is seed coating to control underground pests. Neonicotinoid insecticides, as systemic insecticides, determine that the pesticides can be transferred to pollen, nectar and spit through plant roots, but the content is low, and may not cause acute toxic effects on collector bees, but different ages There are differences in the pathways of bees exposed to pesticides (for example, adult bees eat more nectar than pollen, and the opposite is true for larvae) and their sensitivity to pesticides. Nursing bees (also called worker bees) and larvae are more sensitive to neonicotinoid insecticides. Therefore, low-dose neonicotinoid insecticides also have potential risks to the development of bee populations.

[0030] 1.1 Test organisms

[0031] The test organism used in this experiment is Italian honey bee (Apismellifera L), which is provided by the Honey B...

Embodiment 2

[0068] Embodiment 2: Thiamethoxam is to the chronic 10d feeding toxicity test result of bee larvae

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Abstract

The invention discloses an evaluation method for risks of pesticide to bees.The method comprises the following steps that 1, 1-3-day-old young bees are selected as the bees for tests; 2, preliminary testing is conducted; 3, formal testing is conducted; 4, mortality, sublethal effects and abnormal behaviors of the young bees are observed for 10 consecutive days after testing starts; 5, the NOEC value of the young bees is determined through chemicals.The test method is scientific and feasible, the pesticide in the environment is detected by means of the method, therefore, the beneficial organism bees are protected, and the ecological environment is protected.

Description

technical field [0001] The invention relates to a pesticide risk assessment method, in particular to a pesticide risk assessment method for bees. Background technique [0002] Honey bees are the main pollinator species in agricultural production. Bee pollination can reduce the application of pesticides and fertilizers, which is suitable for the development of ecological agriculture and green agriculture; it has an important ecological function for maintaining agricultural biodiversity and stability. Studies have shown that about 87.5% of flowering plants in the world rely on insect pollination, 87 of which are major food crops, accounting for 35% of the world's total food production, and bees account for about 80% of the total number of pollinating insects, whether they are artificially raised or wild. , all play an important role in crop pollination. At the same time, the economic benefits produced by bee pollination are also considerable. The economic benefits brought by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 吴迟何明远薛白王长宾朱志峰才冰
Owner BEIJING ECO SAF TECH CO LTD
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