Pesticide composition containing malathion and application thereof

A pesticide composition, malathion technology, applied in the field of pesticides, can solve the problems of destabilizing the agricultural ecological environment, exacerbating the deterioration of the human living environment, and aggravating the pollution of the environment, achieving excellent control effects, short wetting time, and high suspension rate high effect

Inactive Publication Date: 2020-06-23
广西益才农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While preventing and controlling pests, the extensive use of pesticides has also killed many natural enemy species, disrupted the stability of the agricultural ecological environment, and led to aggra

Method used

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  • Pesticide composition containing malathion and application thereof
  • Pesticide composition containing malathion and application thereof
  • Pesticide composition containing malathion and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] In a preferred embodiment, the preparation method of the pesticide composition containing malathion comprises the following steps: after mixing malathion and zigzag diatomite, in order to avoid destroying zigzag diatomite Without mechanical crushing, use a ziplock bag to shake, transfer to a flask after 10 minutes, use a stirrer to stir and mix for 30 minutes, and mix well to get the product.

[0027] The chemical name of malathion is O,O-dimethyl-S-(1,2-diethoxycarbonylethyl) phosphorodithioate, which is almost insoluble in water and easily soluble in organic solvents. Malathion has good contact killing, stomach toxicity and certain fumigation effect, without systemic effect. Malathion can inhibit acetylcholinesterase in insects, so that acetylcholine in insect synapses cannot be rapidly decomposed, and accumulates in a large amount at synapses, leading to nervous disorders and overexcitation in insects, affecting normal nerve conduction in insects, and eventually caus...

Embodiment 1

[0051] Example 1. Co-toxicity coefficient method (CTC) screening: determination of the combined toxicity of the pesticide composition containing malathion to citrus spider mite.

[0052] Referring to the method in the NY / T1154.13-2008 standard, the blade spray method is adopted. Wash and dry flat citrus leaves of the same size, put the leaves on the wet sponge with the leaf facing up, surround the leaves with a small wet cotton sliver to prevent the test mites from escaping, and put the wet sponge into the 9cm diameter In a petri dish, add water to the petri dish, the water level is slightly lower than the sponge height. Inoculate the leaves with indoor raised nymphs, no less than 30 per leaf. Place the petri dish in the chassis of the Potter spray tower for spraying, the spraying amount is 1mL, take out the medicine solution after settling for 1min, and transfer it to feeding conditions. Each treatment was repeated 4 times, and a blank control was set.

[0053] After 72h, ...

Embodiment 2

[0060] Example 2. Co-toxicity coefficient (CTC) screening: determination of the combined toxicity of the pesticide composition containing malathion to Thrips occidentalis.

[0061] Referring to the standard method of bioassay NY / T1154.14-2008, the dipping leaf dish method was used. Use a hole puncher with a diameter of 18mm to punch the leaves into leaf discs, immerse the leaf discs in the test drug solution for 10 seconds, put them into a petri dish (90mm in diameter) lined with moisturizing filter paper, and put 5 leaf discs into each dish. After drying naturally, select the adults of Thrips occidentalis and put them into the petri dish, no less than 30 per dish, then seal the mouth of the dish with plastic wrap, and prick some small holes on the film to ventilate. The treatment was repeated 4 times, and after the treatment was completed, they were placed in the observation room for cultivation.

[0062] After 72 hours, the death of the test insects was checked and recorded...

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Abstract

The invention relates to the technical field of pesticides, in particular to a pesticide composition containing malathion and a preparation method thereof. According to the invention, the pesticide composition containing malathion is prepared by compounding diatomite with a specific zigzag structure and malathion; the prepared pesticide composition not only has a relatively high pesticide effect,but also has a relatively wide insecticidal range, and has excellent prevention and treatment effects on citrus red spiders, frankliniella occidentalis, whiteflies, liriomyza sativae, prodenia litura,tea lesser leafhoppers, tea yellow thrips, tea geometrids, apolygus lucorum, grape aphids and the like. Besides, the wettable powder containing malathion is prepared by selecting a specific wetting agent and a dispersing agent, the compatibility of the wettable powder containing malathion and malathion is good, and the prepared wettable powder containing malathion is high in suspension rate and short in wetting time.

Description

technical field [0001] The invention relates to the technical field of pesticides, more specifically, the invention relates to a pesticide composition containing malathion and a preparation method thereof. Background technique [0002] Pesticides refer to chemical synthesis or sources used to prevent, eliminate or control diseases, insects, grasses and other harmful organisms that endanger agriculture and forestry, and to regulate, control, and affect the metabolism, growth, development, and reproduction of plants and harmful organisms. A substance or a mixture of several substances and its preparations produced by biology, other natural products and applied biotechnology. [0003] In the actual process of agricultural production, the most likely problem in pest control is the generation of pest resistance. Malathion belongs to organophosphorus insecticides. Its aliases are Marathon, 4049, and Malathion, and its common name in English is malathion. Malathion is a low-toxic...

Claims

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Application Information

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IPC IPC(8): A01N57/12A01N25/08A01N25/14A01P7/00A01P7/02A01P7/04
CPCA01N25/08A01N25/14A01N57/12
Inventor 刘永山
Owner 广西益才农业发展有限公司
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