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Bactericide composition

一种杀菌剂组合物、组合物的技术，应用在杀菌剂、杀生剂、杀生物剂等方向，达到显著增效作用、提高防治效果、减少施药次数和用药量的效果

Inactive Publication Date: 2021-06-29
QIAOCHANG MODERN AGRI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems existing in the prior art, the present invention provides a fungicide and its composition, which can significantly improve the control effect, reduce the frequency of application and dosage, and help to avoid the occurrence of bacterial resistance and delay the occurrence of drug resistance speed, which can solve problems such as resistance in the process of single-dose application of pesticides

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0115] Embodiment 1 control cucumber downy mildew test

[0116] The potted cucumber seedlings at the two-leaf stage of "Shandong Mici" were sprayed with an aqueous solution (concentration as described below) of the active component. After 24 hours, the cucumber downy mildew spore suspension was inoculated on the cucumber leaves, and then placed Cultivate in a climate chamber with a temperature of 18±1° C. and a relative humidity of 90±5%, and measure the development degree of pathogen infection on the leaves after 3 days. See Table 1 and Table 2 for the activity data results of each individual active component and the composition of the present invention on cucumber downy mildew.

[0117] The results show that the actual control effect values ​​of the composition are greater than the theoretical control effect values, and the composition exhibits a synergistic effect within the range of the test proportion.

[0118] Table 1 Control effect of individual active components on cu...

Embodiment 2

[0125] Example 2 Control of Cucumber Powdery Mildew Test

[0126] Potted cucumber seedlings (variety: Xintaimici) with uniform growth and the same leaf age were selected, and sprayed on the crop sprayer according to the designed dosage, and a blank control without pesticide was set up. After 24 hours, the pathogenic bacteria were inoculated, and then moved to the greenhouse for normal management. The culture conditions (temperature: 23-28°C during the day and 18-20°C at night) were cultivated for 8 days before the results were investigated. Investigate the degree of development of the fungal infestation on each leaf. See Table 3 and Table 4 for the activity data results of each individual active component and the composition of the present invention for controlling cucumber powdery mildew.

[0127] The results show that the actual control effects of the compositions are greater than the theoretical control effects, and the compositions show a synergistic effect within the tes...

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Abstract

The invention discloses a bactericide composition. The composition comprises the following compounds as active components: a compound A: 4-chloro-2-(1, 1-dimethyl ethyl)-5-[[[4-(1, 1-dimethylethyl)phenyl]methyl]sulfenyl]-3(2H)-pyridazinone; and a compound B: fluxapyroxad; and the mass ratio of the compound A to the compound B is (1: 50)-(50: 1). The composition obtained by compounding the compound A and the compound B has an excellent prevention and treatment effect. Meanwhile, the composition expands the bactericidal spectrum, has a synergistic effect, can improve the disease control effect, enables pathogenic bacteria not to easily generate drug resistance, can be used for controlling downy mildew, late blight, epidemic disease, damping-off, powdery mildew, rust disease, anthracnose and the like on vegetables such as cucumbers, Chinese cabbages, spinach, hot peppers, tomatoes and the like and crops such as potatoes, grapes, oranges, bananas and the like, soybean root rot, tobacco black shank and the like.

Description

Technical field [0001] The invention belongs to the field of agricultural fungicides, and specifically relates to a fungicide composition. Background technique [0002] Downy mildew, powdery mildew and blight are common frequently-occurring diseases of melons, fruit trees, vegetables and other crops. They seriously affect the yield and quality of products and often become devastating diseases. [0003] Downy mildew is a plant disease caused by the fungus Downy mildew. Downy mildew can occur at all stages from seedlings to harvest, with adult plants being more severely affected. It mainly damages leaves, developing from the base to the upper leaves. In the early stage of the disease, light yellow nearly round to polygonal lesions form on the leaf surface. When the air is humid, a frosty mold layer forms on the back of the leaf, which sometimes spreads to the leaf surface. In the later stage, the lesions will die and become yellowish brown. In severe cases, all the outer le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/58A01N61/00A01P3/00A01P1/00
CPCA01N43/58A01N47/24
Inventor 李科马超李爽王兴胜苏营李宪朋
Owner QIAOCHANG MODERN AGRI CO LTD
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