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A herbicidal composition and herbicidal activity technology, applied in the direction of herbicides and algicides, biocides, animal repellents, etc., can solve problems such as labor-intensive, weed death, and weed damage
Active Publication Date: 2013-09-04
JIANGSU ROTAM CHEM
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Problems solved by technology
[0012] In actual use, saflufenacil has low activity on some perennial sedges, and some perennial weeds will be severely damaged after continuous use for many years, such as flat stalk, cow felt, Japanese sedge, etc.
The above weeds need
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[0076] As can be seen from the following examples, the novel herbicidal composition of the present invention shows good herbicidal activity, while the herbicidal activity or binary herbicidal activity of a single active compound is weak, and the activity of the combination of the present invention exceeds the activity of each individual compound and simple summation of binary combinatorial activities.
[0077] A synergistic effect is always present when the herbicidal activity of the active compound combination exceeds the sum of the activities of the active compounds alone.
[0078]
Embodiment 1
[0080] Example 1: 20% saflufenacil + +1% pyrazosulfuron-methyl oil suspension
[0087] Mix the active components, dispersant, wetting agent and corn oil according to the ratio of the formula, and grind and / or high-speed shear to obtain 20% saflufenacil + 1% pyrazosulfuron-methyl oil suspension agent.
Embodiment 2
[0088] Example 2 10% saflufenacil + 2% pyrazosulfuron-methyl wettable powder
[0089] Saflufenacil 10%
[0090] Pyrazosulfuron-methyl 2%
[0091] Sodium Lauryl Sulfate 10%
[0092] Sodium lignosulfonate 5%
[0093] Silica 10%
[0094] Kaolin supplemented to 100%
[0095] The active ingredients, various additives and fillers are mixed according to the proportion of the formula, and after being pulverized by a superfine pulverizer, 10% saflufenacil + 2% pyrazosulfuron-methyl wettable powder can be obtained.
[0096]
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Abstract
The invention relates to a synergistic weeding composition. The synergistic weeding composition comprises weeding activity components consisting of pyribenzoxim and pyrazosulfuron-ethyl, and is suitable for selective control of weeds in beneficial crops such as rice. The synergistic weeding composition comprises the weeding activity components consisting of the pyribenzoxim and the pyrazosulfuron-ethyl, wherein the weight ratio of the pyribenzoxim to the pyrazosulfuron-ethyl is 100: 1 to 1:100. The synergistic weeding composition also can comprise a safety agent. The novel weeding composition is prepared through ternary complex formulation of the pyribenzoxim and the pyrazosulfuron-ethyl, so that defects caused by single use of the pyribenzoxim can be effectively overcome, a weed killing spectrum for the weeds is enlarged, and at the same time generation of drug resistance is postponed. The weeds in rice fields can be basically removed by one-time use of the weeding composition, so that the weeding composition is labor saving, time saving, and effort saving, can alleviate some of the rural labor shortage, and at the same time can play a certain role in increase of both production and income of the rice. The weeding composition shows an enhanced effect on the control of broadleaf weeds, gramineae weeds and cyperaceae weeds of the rice fields.
Description
technical field [0001] The present invention relates to a synergistic herbicidal composition, which contains saflufenacil and pyrazosulfuron-methyl as herbicidal active components, and is suitable for selectively controlling weeds in beneficial crops such as rice. Background technique [0002] Rice is one of the main food crops in the world. Nearly half of the world's population, including almost the entire population of East Asia and Southeast Asia, live on rice, and its production covers all continents except Antarctica. In the late last century, the average annual rice output in the world was about 400 billion kilograms, and the planting area was about 145 million hectares. Rice is also the most important food crop in my country. my country's rice sowing area accounts for 1 / 4 of the country's food crops, about 35 million hectares per year, while the output accounts for more than half. Regardless of the planting area and output, it ranks first in my country's food crops....
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Application Information
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