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Sterilization composition and preparation thereof
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A technology of fungicides and compositions, applied in the field of pesticides, can solve problems such as poor control effects, achieve the effects of reducing dosage and delaying drug resistance
Active Publication Date: 2015-02-25
LIANBAO CROP TECH
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Using the same method to control different types of powdery mildew, the control effect is poor
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Embodiment 1
[0036] Embodiment 1, indoor toxicityassay of bactericidal composition of the present invention
[0037] In order to screen the compound ratio of tetrafluconazole and propoxyquinoline, indoor toxicity test was carried out with different ratios of tetrafluconazole·propoxyquinoline. The pot method was used to test the toxicity. At the same time, the toxicity of single doses of tetrafluconazole and propoxyquinoline were determined respectively.
[0038] Tefluconazole single agent treatment concentration is 6, 4, 3, 2, 1.6 μg / mL, propoxyquinoline single agent treatment concentration is 36, 18, 9, 4.5, 2.25 μg / mL, and the test of combination drug is also set There were 5 concentration gradients, and a blank control without drug was set up, and each treatment was repeated 4 times.
[0039] Choose susceptible cucumber varieties for potting, and wait for the seedlings to grow to two oligo-leaf flattening stages for later use. Use purified water with a small amount of Tween-80 to wa...
[0056] Tetrafluconazole 15%, propoxyquinoline 5%, Nongru 0203B 5%, solvent oil No. 100 make up 100%. Thoroughly mix and grind tetrafluconazole, propoxyquinoline, emulsifier, and mineral spirits to obtain the product.
[0058] Tetrafluconazole 40%, propoxyquinoline 8%, Nongru 22015%, Nongru 70010%, tetrahydrofuran make up 100%. Thoroughly mix and grind tetrafluconazole, propoxyquinoline, emulsifier, and mineral spirits to obtain the product.
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Abstract
The invention relates to the field of pesticides preparations, and discloses a sterilization composition and a preparation thereof. The sterilization composition consists of tetraconazole and proquinazid with a weight ratio of 1 : (0.2-10), has substantial synergy effect, and is capable of effectively controlling powdery mildew of multiple crops, reducing the content of the pesticides and delaying generation of drug resistance. A bactericide of the invention is prepared from the sterilization composition, an auxiliary agent and a carrier, and is capable of effectively controlling powdery mildew of multiple crops, especially wheat powdery mildew and cucumber powdery mildew.
Description
technical field [0001] The present invention relates to the technical field of pesticides, in particular to a bactericidal composition and its preparation, in particular to a bactericidal composition and its preparation whose active ingredients are composed of tetrafluconazole and propoxyquinoline. Background technique [0002] Powdery mildew is a common disease on crops, which can occur from seedlings to adult plants. It mainly damages leaves, and sometimes stems and petioles. At the beginning of the disease, small white spots appear on the leaves, which gradually expand, and finally can be connected into sheets, and the leaves are covered with a white powdery mold layer. In severe cases, the leaves gradually turn yellow, dry up and die, and sometimes many black spots appear on the lesions. Powdery mildew seriously affects photosynthesis, disturbs normal metabolism, causes premature aging or loss of yield. For example, wheat powdery mildew is common in my country's wheat-...
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