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Insecticidal composition and application of insecticidal composition in preventing and eliminating athetis lepigone and meromyza saltatrix

An insecticidal composition and a technology for Spodoptera frugiperda, which are applied in the field of insecticidal compositions for controlling Spodoptera frugiperda and wheat straw flies, can solve the problems of water pollution, environmental hazards, phytotoxicity and the like, and reduce the Cost of use, extended use period, and effect of reducing usage

Inactive Publication Date: 2014-09-03
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In early July 2005, Jiang Jingyu and others first discovered this pest in the summer corn planting area of ​​Hebei Province, which has not been recorded in domestic data
With the growth of the larval age, the pest's food intake will continue to increase, and the scope of occurrence will further expand. If it cannot be controlled in time, it will seriously threaten corn production.
[0004] At present, 80% dichlorvos EC, 48% chlorpyrifos EC or 2.5% trichlorfon powder are mostly used as pesticides for the control of wheat stalk fly and spodoptera, among which dichlorvos is a kind of organophosphorus insecticide with high toxicity. It is harmful to humans and animals; although chlorpyrifos is moderately toxic, it is harmful to the environment; trichlorfon is harmful to the environment and can cause pollution to water bodies
In addition, these three pesticides are likely to cause phytotoxicity to crops such as corn and wheat.

Method used

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  • Insecticidal composition and application of insecticidal composition in preventing and eliminating athetis lepigone and meromyza saltatrix
  • Insecticidal composition and application of insecticidal composition in preventing and eliminating athetis lepigone and meromyza saltatrix
  • Insecticidal composition and application of insecticidal composition in preventing and eliminating athetis lepigone and meromyza saltatrix

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Biological Example 1 Indoor Toxicity Determination of Thiamethoxam, Monosultap and 7 Mixtures of Different Proportions on Spodoptera spp.

[0031] Ratio and concentration setting of test agents: 98.4% thiamethoxam technical (Hebei Derui Chemical Co., Ltd.), 95.2% monosultap technical (Jiangsu Huifeng Agrochemical Co., Ltd.), acetone (analytical grade), distilled water, etc. Dissolve 98.4% thiamethoxam original drug in acetone to prepare 10000mg / L mother liquor, and gradiently dilute the mother liquor with 0.01% Tween 80 aqueous solution according to the preset concentration range to prepare a serial concentration of medicament; 95.2% insecticidal mono The original medicine is configured into 10000mg / L mother liquor with distilled water. Then according to the mixed mother liquor of 50:1, 25:1, 5:1, 1:1, 1:5, 1:25 and 1:50 according to the active ingredient distribution ratio of thiamethoxam and monosultap, each mixed mother liquor was respectively Dilute with distilled ...

Embodiment 2

[0036] Biological Example 2: Indoor Toxicity Determination of Thiamethoxam, Monosultap and 7 Mixtures of Different Proportions to Straw Fly

[0037] According to the different proportioning medicaments and test methods configured in Example 1, the toxicity of straw flies was measured, and the test results are shown in Table 2. From the results of each medicament and different proportioning, it can be seen that the correlation coefficient r of each equation is high at 0.96. The results from the calculation of the co-toxicity coefficient showed that the co-toxicity coefficients of the five concentration ratios designed in this experiment were all greater than 120, indicating that the mixed use of thiamethoxam and dimehypo had a synergistic effect on stalk flies. Among them, thiamethoxam: The co-toxicity coefficient (CTC) of insect single = 1:1 is the highest, 214.27, and the synergistic effect is obvious.

[0038] Table 2 Indoor toxicity test results of thiamethoxam, monosultap...

Embodiment 1、26

[0041] Formulation Example 1, 26% thiamethoxam·sultap monosuspension

[0042] Thiamethoxam 10.5%, monosultap 15.5%, dispersant SP-2800 4%, pesticide emulsifier 1601 1.5%, defoamer 0.3%, thickener 0.2%, antifreeze ethylene glycol 4%, water supplement 100 %. The 40% thiamethoxam · monosultap suspension is prepared after mixing and stirring the above-mentioned agricultural chemicals.

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PUM

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Abstract

The invention relates to the field of pesticide preparations and discloses an insecticidal composition. The insecticidal composition provided by the invention is prepared from thiamethoxam and monosultap in a weight ratio of (1:50)-(50:1). The insecticidal composition compounded has a good preventing and eliminating effect to athetis lepigone and meromyza saltatrix.

Description

technical field [0001] The invention relates to the field of pesticide preparations, in particular to an insecticidal composition for preventing and controlling the stalk moth and the stalk fly whose active ingredients are composed of thiamethoxam and monosultap. Background technique [0002] Straw flies belong to the order Diptera and belong to the family Liriodidae. It has been recorded in 15 provinces, municipalities, and autonomous regions in China. It is widely distributed in spring wheat areas in Inner Mongolia, North China, and Northwest China. It is also widely distributed in winter wheat areas and has caused serious damage in some areas. Stalk fly mainly affects wheat, but also corn, barley and rye. [0003] Erdianwei Noctuid belongs to Lepidoptera Noctuidae, distributed in Japan, Korea, Russia, Europe and other places. In early July 2005, Jiang Jingyu and others first discovered the pest in the summer corn planting area of ​​Hebei Province, which has not been rec...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01P7/04A01N41/02
Inventor 张金林赵斌董金皋陶晡
Owner HEBEI AGRICULTURAL UNIV.
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