A herbicidal composition containing (a) a compound of formula (I):

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wherein X represents CH or N, hal represents F, Cl or Br, R is methyl or ethyl, and R′ is H, methyl or ethyl, or an agriculturally acceptable salt or ester thereof, (b) a second herbicide comprising at least one phenoxy herbicide, or an agriculturally acceptable salts, esters, and amides thereof; and/or (c) a third herbicide comprising at least one photosynthetic inhibitor, or an agriculturally acceptable salts, esters, and amides thereof, provides control of undesirable vegetation e.g., in direct-seeded rice, water-seeded rice, transplanted rice, cereals, wheat, barley, oats, rye, sorghum, corn or maize, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, vegetables, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, aquatics, plantation crops, vegetables, industrial vegetation management (IVM) and rights of way (ROW).

The invention provides mesotrione copper chelate form I and mesotrione copper chelate form II. A process for preparing mesotrione copper chelate form I and mesotrione copper chelate form II is also disclosed. Further, the present invention provides process for preparing mesotrione metal chelate polymorphs and agrochemical formulations comprising such polymorphs.

The invention provides mesotrione copper chelate form I and mesotrione copper chelate form II. A process for preparing mesotrione copper chelate form I and mesotrione copper chelate form II is also disclosed. Further, the present invention provides process for preparing mesotrione metal chelate polymorphs and agrochemical formulations comprising such polymorphs.

Disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof and (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof. Also disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof, and (c) a HPPD inhibitor herbicide. Also disclosed herein are methods of controlling undesirable vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying in soil or water to control the emergence or growth of vegetation (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof, and (c) optionally, a HPPD inhibitor herbicide.

Disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof and (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof. Also disclosed herein are compositions comprising (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof, and (c) a HPPD inhibitor herbicide. Also disclosed herein are methods of controlling undesirable vegetation, comprising applying to vegetation or an area adjacent the vegetation or applying in soil or water to control the emergence or growth of vegetation (a) a pyridine carboxylate herbicide or an agriculturally acceptable N-oxide, salt, or ester thereof, (b) a PS II inhibitor herbicide or an agriculturally acceptable salt or ester thereof, and (c) optionally, a HPPD inhibitor herbicide.

The present invention relates to the technical field of herbicide crystallization process, particularly to Crystalline form C of shuangzuocaotong, and a preparation method therefor and use thereof. The Crystalline form C of shuangzuocaotong has an X-ray powder diffraction pattern having characteristic absorption peaks at the following 2θ positions: 10.159, 10.658, 13.318, 14.579, 16.096, 18.061, 19.322, 19.68, 20.04, 20.659, 21.281, 23, 24.16, 24.619, 26.101, 26.74, 30.359, 31.018, 32.378, 35.398 and 38.26 degrees, wherein 2θ has an error range within ±0.2°. The Crystalline form C of shuangzuocaotong has good stability, and its compounded composition with additional active ingredient(s) has a good control effect to broadleaf weeds and some gramineous weeds in wheat, significantly better than that of Crystalline form A of shuangzuocaotong.

Methods of increasing the tolerance of a plant to an herbicide and seeds for carrying out these methods are provided herein. The methods include treating the seeds of the plant with an insecticide prior to planting. The insecticide treatment makes the resulting plant more resistant to herbicides and in particular to post-emergence herbicides as compared to untreated seeds. The plants suitably do not have complete natural or complete engineered resistance to the herbicide. The treated seeds are then planted in a field and the herbicide is applied to the field. The resulting plants growing from the treated seeds have increased tolerance to the herbicide as compared to plants grown from seeds not treated with the insecticide.

Methods of increasing the tolerance of a plant to an herbicide and seeds for carrying out these methods are provided herein. The methods include treating the seeds of the plant with an insecticide prior to planting. The insecticide treatment makes the resulting plant more resistant to herbicides and in particular to post-emergence herbicides as compared to untreated seeds. The plants suitably do not have complete natural or complete engineered resistance to the herbicide. The treated seeds are then planted in a field and the herbicide is applied to the field. The resulting plants growing from the treated seeds have increased tolerance to the herbicide as compared to plants grown from seeds not treated with the insecticide.

Methods of reducing injury to crop foliage and achieving weed control using encapsulated acetamide herbicides in pre-plant or preemergence crop plant applications are described. A composition comprising a first population of a particulate microencapsulated acetamide herbicide and a second population of a particulate microencapsulated acetamide herbicide is described wherein the application mixture exhibits a bimodal acetamide release profile. The compositions provide reduced crop injury through controlled herbicide release.

Methods of reducing injury to crop foliage and achieving weed control using encapsulated acetamide herbicides in pre-plant or preemergence crop plant applications are described. A composition comprising a first population of a particulate microencapsulated acetamide herbicide and a second population of a particulate microencapsulated acetamide herbicide is described wherein the application mixture exhibits a bimodal acetamide release profile. The compositions provide reduced crop injury through controlled herbicide release.