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，达到减少施药次数和用药量、提高防治效果、显著增效作用的效果

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
Comparison scheme
Effect test

Embodiment 1

[0115] Example 1 Experiment on the control of cucumber downy mildew

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

[0117] The results show that the actual control effect value of the composition is greater than the theoretical control effect value, and the composition shows a synergistic effect within the test ratio range.

[0118] Table 1 Control e...

Embodiment 2

[0125] Example 2 Experiment on the control of cucumber powdery mildew

[0126] Select potted cucumber seedlings with uniform growth and the same leaf age (variety: Xintai Mi thorn), and apply foliar spray treatment on the crop spray according to the designed dose, and set up a blank control without adding chemicals. 24 hours later, pathogenic bacteria were inoculated, and after inoculation, they were transferred to a greenhouse for normal management, and the results were investigated after culturing for 8 days under the culture conditions (temperature: 23-28°C in the day, 18-20°C in the night). Investigate the degree of development of the pathogenic infection on each leaf. The results of the activity data of each individual active component and the composition of the present invention for controlling cucumber powdery mildew are shown in Table 3 and Table 4.

[0127] The results show that the actual control effect of the composition is greater than the theoretical control effe...

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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: tebuconazole; and the mass ratio of the compound A to the compound B is (1: 10)-(10: 1). The composition obtained by compounding the compound A and the compound B has an excellent prevention and control 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): A01N43/58A01N43/653A01N43/84A01N37/38A01N43/40A01N37/20A01N43/50A01N37/34A01N47/14A01N43/80A01N41/08A01N47/34A01N47/24A01N43/78A01P3/00
CPCA01N43/58A01N47/24
Inventor 李科马超王林张双应孙守福余欣迪
Owner QIAOCHANG MODERN AGRI CO LTD
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