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A herbicidal composition and composition technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problems of crop damage, poor activity, high cost of medication, etc., to delay weed resistance Sexuality, long-lasting effect, and the effect of improving drug efficacy
Inactive Publication Date: 2017-01-04
JIANGSU ROTAM CHEM
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Abstract
Description
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Application Information
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Problems solved by technology
Bensulfuron-methyl has special effects on vicious weeds such as triangular weeds, sagittarius japonica, and spinach, and it only has an inhibitory effect on barnyard grass. Large triangular grass, poor control effect, high cost of medication
[0010] At present, herbicides are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in crop fields. On the other hand, the amount of herbicide is too large or the application is uneven. Also prone to unacceptable toxicity to current or subsequent crops
Pyroclofensulfone is a highly effective pre-emergence herbicide but has poor post-emergence activity
In addition, pyroxasulfone is compatible with some dicotyledonous crops such as cotton, sunflower, soybean, brassica (brassica) crops such as canola (canola) and rapeseed, and some gramineous crops such as rice, wheat, black The compatibility of wheat and barley is not always satisfactory, that is, in addition to harmful plants, crops are also damaged to an unacceptable extent
Although in principle it is possible to reduce the application rate without damaging the crop, the degree of control of harmful plants is also naturally reduced
Method used
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[0117] Mix active components, dispersant, wetting agent and water according to the ratio of the formula, and grind and / or high-speed shear to obtain 60% pyroxasulfone + 6% bensulfuron-methyl suspension agent.
Embodiment 2
[0118] Example 2 2% pyroxasulfone+10% bensulfuron-methyl wettable powder
[0119] pyroxasulfone 2%
[0120] Bensulfuron-methyl 10%
[0121] Sodium Lauryl Sulfate 10%
[0122] Sodium lignosulfonate 5%
[0123] Silica 10%
[0124] Kaolin supplemented to 100%
[0125] The active ingredients, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by an ultra-fine pulverizer, 2% pyroxasulfone + 10% bensulfuron-methyl wettable powder can be obtained.
Embodiment 3
[0126] Example 3 2% pyroxasulfone+50% bensulfuron-methyl wettable powder
[0127] pyroxasulfone 2%
[0128] Bensulfuron-methyl 50%
[0129] Calcium dodecylbenzenesulfonate 1%
[0130] Sodium lignosulfonate 2%
[0131] Silica make up to 100%
[0132] The active ingredients, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by an ultrafine grinder, 2% pyroxasulfone + 50% bensulfuron-methyl wettable powder can be obtained.
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Abstract
The invention provides a synergistic weed control composition. The synergistic weed control composition comprises active ingredients, namely pyroxasulfone and bensulfuron-methyl, in a weight ratio of (50 to 1)-(1 to 50). The synergistic weed control composition is applied to prevention of growth of undesirable plants. The invention also provides a method for preventing growth of the undesirable plants. The method is characterized by jointly or independently applying the active ingredients, namely pyroxasulfone and bensulfuron-methyl, of the synergistic weed control composition to the undesirable plants or the growth places of the undesirable plants. The invention also provides a method for reducing or preventing damages caused by pyroxasulfone to plants, seeds or other reproducing parts, which are treated by pyroxasulfone, of useful crops.
Description
technical field [0001] The present invention relates to a synergistic herbicidal composition. The invention also relates to a method for controlling unwanted vegetation. Background technique [0002] The crop yield is reduced due to the damage of weeds, so it is necessary to apply a large amount of herbicides every year for weed control to recover the loss of crop yield. In recent years, the harm of weeds to crops has become more and more serious, and due to the abuse of herbicides, weeds have become more and more resistant to pesticides, resulting in a decrease in the weed control effect year by year. [0003] The most commonly used method for increasing the herbicidal activity and broadening the herbicidal spectrum of existing herbicides is to mix two or more herbicidally active substances with different herbicidal activities. If two or more herbicidally active substances are mixed, it may show superior herbicidal efficacy than individual herbicide applications. Thus, w...
Claims
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Application Information
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