Plant protecting and regulating compositions – Plant growth regulating compositions – Plural active ingredients
Patent
1996-12-20
1997-11-25
Clardy, S. Mark
Plant protecting and regulating compositions
Plant growth regulating compositions
Plural active ingredients
504135, A01N 4366, A01N 4378, A01N 4736
Patent
active
056912765
DESCRIPTION:
BRIEF SUMMARY
This application has been filed under 35 USC 371 as a national stage application of PCT/JP 95/01251, filed Jun. 22, 1995.
TECHNICAL FIELD
The present invention relates to a herbicidal composition containing a fluoropropylthiazoline derivative and a certain type of herbicide as active ingredients.
BACKGROUND ART
Many years of research and development of herbicides brought a great variety of chemicals into practical use, and these herbicides have contributed to labor saving in weed control and the improvement in the productivity of farm and garden crops. Even in these days, development of new chemicals having more excellent herbicidal properties is still demanded. As agricultural and horticultural herbicides, chemicals which selectively control the target weeds at low doses without showing phytotoxicity to crop plants are particularly desired. However, no existing chemicals satisfy all these desired conditions.
The compound represented by the following formula (1) in the present in International Patent Application PCT/JP95/00011, is a herbicide which shows an excellent herbicidal effect on Graminaceous weeds such as wild oat and blackgrass and broad-leaved weeds such as common lambsquater, common chickweed, kedlock and slender amaranth at low doses in foliage treatment and is fairly safe for sugar beet, but does not have much effect on some broad-leaved weeds. ##STR2##
On the other hand, the compound represented by the following formula (2) referred to as compound (6)! are already known and in practical use as herbicides for sugar beet, but have a drawback that they don't have much effect on Graminaceous weeds or some broad-leaved weeds. ##STR3##
DISCLOSURE OF THE INVENTION
The present inventors found combined use of compound (1) and at least one compound selected from the group consisting of compound (2), compound (3), compound (4), compound (5) and compound (6) not only compensates for the drawbacks of the individual compounds used in single formulation but also enables reduction in the application dose and simultaneous control of Graminaceous weeds and broad-leaved weeds. The present invention has been accomplished on the basis of this discovery.
The common name of compound (2) in the present invention is phenmedipham, the common name of compound (3) is ethofumesate, the common name of compound (4) is chloridazon, the common name of compound (5) is metamitron, and the common name of compound (6) is triflusulfuron-methyl (test name DPX-66037).
In addition to compound (2), compound (3), compound (4), compound (5) and compound (6), the following compounds may be mentioned as a herbicide which can be used in combination with compound (1). Examples of such formulations will be given later in Formulation Examples 26 to 39.
It is also possible to add one or two of the following compounds to a mixture of compound (1) and at least one compound selected from the group consisting of compound (2), compound (3), compound (4), compound (5) and compound (6).
Desmedipham (common name), cycloate (common name), diallate (common name), lenacil (common name), TCA, pebulate (common name), endothal (common name), EPTC, fluazifop-P-butyl (common name), sethoxydim (common name), haloxyfop-methyl (common name), quizalofop-ethyl (common name), trifluralin (common name), diethatyl-ethyl (common name) and the like may be mentioned. Examples of such formulations will be given later in Formation Examples 40 to 56.
Addition of such a chemical to compound (1) or to a mixture of compound (1) and one of compounds (2) to (6) is expected to lead to, for instance, a broad weeding spectrum, a reduced application dose and persistent herbicidal effect.
In the present invention, compound (1) and one of compounds (2) to (6) are used in an appropriate ratio selected from such a range that the two chemicals do not impair each other's performance.
For example, one of compounds (2) to (6) is used preferably in an amount of from 0.01 to 500 parts by weight, more preferably from 0.1 to 100 parts by weight per 1 part by weight of compound (1).
REFERENCES:
CA 126:74875. Abstract of JP 08-277289, 22 Oct. 1996.
CA 123:228210. Abstract of WO 95-18806, 13 Jul. 1995.
CA 124:289581. Abstract of JP 07-330765, 19 Dec. 1995.
CA 124:176080. Abstract of JP 07-278144, 24 Oct. 1995.
Ito Yoichi
Makino Kenzi
Nawamaki Tsutomu
Sudo Kazuhisa
Clardy S. Mark
Nissan Chemical Corporation
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