HERBICIDAL COMPOSITIONS COMPRISING ACTIVE COMPOUNDS FROM THE GROUP OF THE HPPD INHIBITORS, SAFENERS AND TRIAZINES

Abstract

Herbicidal compositions comprising active compounds from the group of the HPPD inhibitors, safeners and triazines

Herbicidal compositions comprising active compounds from the group of the HPPD inhibitors, safeners and triazines are described. These herbicidal compositions are particularly suitable for use against harmful plants in crops of useful plants.

Claims

1. A herbicidal composition comprising A) a compound from the group consisting of (A5) compound of formula A5 ##STR00003## and (A6) compound of formula A6 ##STR00004## or in each case their salts (component A), B) a compound from the group consisting of (B1) isoxadifen-ethyl and (B2) cyprosulfamide (component B) and C) a compound from the group consisting of (C1) atrazine, (C2) hexazinone and (C4) metribuzin (component C).

2. The herbicidal composition as claimed in claim 1, comprising A) (A5) the compound of formula A5 ##STR00005## or salts thereof (component A), B) a compound from the group consisting of (B1) isoxadifen-ethyl and (B2) cyprosulfamide (component B) and C) (C4) metribuzin, (component C).

3. The herbicidal composition as claimed in claim 1, comprising A) (A6) the compound of formula A6 ##STR00006## or salts thereof (component A), B) a compound from the group consisting of (B1) isoxadifen-ethyl and (B2) cyprosulfamide (component B) and C) (C4) metribuzin, (component C).

4. The herbicidal composition as claimed in claim 1 in a mixture with one or more formulation auxiliaries.

5. The herbicidal composition as claimed in claim 1, comprising at least one further pesticidally active substance from the group consisting of insecticides, acaricides, herbicides, fungicides, safeners, and growth regulators.

6. The herbicidal composition as claimed in claim 1, comprising the components A and B in a ratio of from 1:100 to 6.7:1 and the components (A+B) and C in a ratio of from 1:143 to 140:1.

7. The herbicidal composition as claimed in claim 1, comprising the components A and B in a ratio of from 1:30 to 3:1 and the components (A+B) and C in a ratio of from 1:33.3 to 6:1.

8. A method for controlling one or more unwanted plants, comprising applying a herbicidal composition as claimed in claim 1 to the plants or to a site of unwanted vegetation.

9. The method as claimed in claim 8, wherein control of unwanted plants takes place in one or more crops of corn or sugar cane.

10. A product comprising atrazine, hexazinone or metribuzin for reducing the phytotoxicity in one or more useful plants.

11. A product as claimed in claim 10, wherein said useful plants comprise corn or sugar cane.

12. The product as claimed in claim 11, wherein said useful plants comprise sugar cane.

Description

WORKING EXAMPLES

[0071] Post-emergence herbicidal activity against harmful plants and phytotoxicity toward useful plants:

[0072] Sugar cane having a height of 25 to 30 cm and harmful plants are treated with herbicidal compositions according to the invention comprising components A, B and C. For comparative purposes, the same tests are carried out with herbicidal compositions comprising only components A and B, and also with herbicidal compositions comprising only component A. The herbicidal activity and phytotoxicity of the compositions according to the invention are shown in a comparative manner in the tables below.

The abbreviations mean:

[0073] BIDPI Bidens pilosa

[0074] IPOAO Ipomoea aristolochiaefolia

[0075] EPHHL Euphorbia heterophylla

TABLE-US-00001 TABLE 1 Herbicidal Dosage Herbicidal activity [%] against composition [g/ha] IPOAO EPHHL BIDPI 1 A5 50 38% 30% 42% 2 A5 + B1 50 + 150 37% 28% 38% 3 A5 + B1 + C4 50 + 150 + 480 77% 50% 85%

TABLE-US-00002 TABLE 2 Herbicidal activity [%] against Herbicidal Dosage Saccharum officinarum composition [g/ha] (sugar cane) 1 A5 50 14% 2 A5 + B1 50 + 150 6% 3 A5 + C4 50 + 480 8% 4 A5 + B1 + C4 50 + 150 + 480 4%

[0076] The results in Table 1 show that the mixture (row 2) of herbicide A5 with safener B1, within the margin of error of the assessment, has the same herbicidal activity against harmful plants as herbicide A5 alone (row 1). The mixture (row 3) of herbicide A5 with safener B1 and herbicide C4 shows a markedly enhanced herbicidal activity against harmful plants.

[0077] Surprisingly, the data in Table 2 show that the mixture (row 4) of herbicide A5 with safener B1 and herbicide C4 causes markedly less damage to the crop plant sugar cane than the mixture (row 2) of herbicide A5 with safener B 1.