A kind of synergistic bactericidal composition and its application
A composition, the technology of fludioxonil, applied in the direction of application, fungicide, biocide, etc., can solve the problems such as difficult control of soil-borne diseases, achieve the effect of improving field effect and reducing usage
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example 1
[0017] Bioassay Example 1: Indoor Toxicity Determination of Fludioxonil and Salicylamine Complex to Rice Sheath Blight
[0018] Test object: Rice sheath blight (Rhizoctonia solani), collected from the field, separated and purified indoors.
[0019] Test method: refer to the "People's Republic of China Agricultural Industry Standard NY / T1156.2-2006", that is, the mycelium growth rate method. Dissolve the original drug with acetone, dilute with 0.1% Tween 80 water, and prepare 6 series of mass concentrations. Under sterile conditions, take 5 mL of the prepared medicinal solution and mix them with 75 mL of culture medium evenly to make 4 plates containing medicine, and mix an equal amount of sterile water with the culture medium as a control. The cultivated germs are cut from the edge with a sterilized puncher with a diameter of 5mm under aseptic conditions to get the fungus cake. Use an inoculator to inoculate the fungus cake on the center of the drug-containing plate, with th...
example 2
[0028] Bioassay Example 2: Indoor Toxicity Determination of Fludioxonil and Salicylamine Complex on Tomato Damping-off
[0029] Test object: Tomato damping-off (Pythiumaphanidermatum), collected from the field, separated and purified indoors.
[0030] Test method: refer to the "People's Republic of China Agricultural Industry Standard NY / T1156.2-2006", that is, the mycelium growth rate method. The test method and statistical method are the same as the biological assay example 1.
[0031] The results of the toxicity test are shown in Table 2.
[0032]
[0033]
example 3
[0034] Bioassay example 3: Indoor toxicity test of fludioxonil and salicylamine complex against watermelon wilt
[0035] Test object: watermelon wilt (Fusariumoxysporumf.sp.niveum.), collected from the field, separated and purified indoors.
[0036] Test method: refer to the "People's Republic of China Agricultural Industry Standard NY / T1156.2-2006", that is, the mycelium growth rate method. The test method and statistical method are the same as the biological assay example 1.
[0037] The results of the toxicity test are shown in Table 3.
[0038]
[0039] Tables 1, 2, and 3 indicate that fludioxonil and salicylamine have a good synergistic effect at a ratio of 50:1 to 1:50, and the co-toxicity coefficients are all above 120. Especially between 20:1~1:20, it shows a more obvious synergistic effect, and the co-toxicity coefficient is above 130; between 10:1~1:10, it shows a more obvious synergistic effect, a total of The toxicity coefficient is above 160
[0040] The fu...
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