HERBICIDAL COMPOSITIONS COMPRISING ISOXAFLUTOLE AND DIFLUFENICAN

Abstract

A description is given of herbicidal compositions which comprise the active ingredients isoxaflutole and diflufenican. These herbicidal compositions are particularly suitable for use against weed plants in crops of useful plants.

Claims

1. Herbicidal composition comprising active herbicidal ingredients (A) isoxaflutole, and (B) diflufenican.

2. Herbicidal composition containing as sole active herbicidal ingredients (A) isoxaflutole, and (B) diflufenican.

3. Herbicidal composition according to claim 1, comprising isoxaflutole and diflufenican in a weight ratio of 1:0.375 to 12.

4. Method for controlling one or more weed plants in one or more crops of one or more useful plants, comprising applying a herbicidal composition according to claim 1 to the weed plants, plants or plant seeds or to an area on which plants are growing.

5. Method according to claim 4, wherein the one or more plants are selected from the group consisting of maize, cotton and soyabean.

6. Method according to claim 4, wherein the one or more plants have been genetically modified.

7. Method according to claim 4, wherein that is carried out pre-emergence or early post-emergence.

8. Method according to claim 4, wherein that is carried out for controlling HPPD-resistant plants.

9. Herbicidal composition according to claim 1 for controlling one or more unwanted plants in one or more crops of one or more useful plants.

10. Composition according to claim 9, wherein the useful plants are selected from the group consisting of maize, cotton and soyabean.

11. Composition according to claim 9 for controlling unwanted plants from the group of HPPD-resistant plants.

12. Composition according to claim 9, wherein isoxaflutole is used at an application rate of 5 to 100 g and diflufenican at an application rate of 5 to 150 g per hectare.

Description

BIOLOGICAL EXAMPLES

[0056] Test Conditions in the Greenhouse Trial, Herbicidal Activity Against Weed Plants Pre-Emergence

[0057] Seeds of monocotyledonous and dicotyledonous weed plants and crop plants are sown in sandy loam soil in wood fibre pots, and covered with soil. The compounds of the invention, formulated in the form of wettable powders (WP) or emulsifiable concentrates (EC), are then applied to the surface of the covering earth, in the form of an aqueous suspension or emulsion, with a water application rate when converted of 600 to 800 I/ha with addition of 0.2% of wetting agent. Following the treatment, the pots are placed in a greenhouse and maintained under good growth conditions for the test plants. Visual scoring of the damage to the trial plants takes place after a trial time of 3 weeks in comparison to untreated controls (herbicidal activity in percent (%): 100% activity=plants have died; 0% activity=as control plants). The results are set out in the tables which follow.

[0058] The meanings of the abbreviations are as follows:

AMAPA (USA12001) Amaranthus palmeri (against HPPD-resistant species)
AMATA Amaranthus tamariscinus
EPHHL Euphorbia heterophylla
ECHCG Echinochloa crus galli
PHBPU Pharbitis purpureum
POAAN Poa annua
POLCO Polygonum convolvulus
E.sup.C=Expected value according to Colby (E.sup.C=A+BAB/100)
=Difference (%) between measured value and expected value (%) (measured value minus expected value)

Evaluation:

[0059] measured value E is greater than E.sup.C: ->synergism (+) [0060] measured value E is equal to E.sup.C: ->additive effect [0061] measured value E is smaller than E.sup.C: ->antagonism ()

TABLE-US-00001 TABLE 1 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 25 55% DFF 37.5 45% IFT + DFF 25 + 37.5 100% (E.sup.C = 75%, = 25%)

TABLE-US-00002 TABLE 2 Active Rate Activity [%] ingredient [g/ha] against POAAN IFT 25 0% DFF 18.75 88% IFT + DFF 25 + 18.75 97% (E.sup.C = 88%, = 9%)

TABLE-US-00003 TABLE 3 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 25 55% DFF 18.75 35% IFT + DFF 25 + 18.75 100% (E.sup.C = 71%, = 29%)

TABLE-US-00004 TABLE 4 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 25 55% DFF 9.375 20% IFT + DFF 25 + 9.375 83% (E.sup.C =64%, = 19%)

TABLE-US-00005 TABLE 5 Active Rate Activity [%] ingredient [g/ha] against POAAN IFT 25 0% DFF 9.375 3% IFT + DFF 25 + 9.375 75% (E.sup.C = 3%, = 72%)

TABLE-US-00006 TABLE 6 Active Rate Activity [%] ingredient [g/ha] against AMAPA USA12001 IFT 13 15% DFF 75 70% IFT + DFF 13 + 75 99% (E.sup.C =75%, = 24%)

TABLE-US-00007 TABLE 7 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 13 15% DFF 37.5 45% IFT + DFF 13 + 37.5 85% (E.sup.C = 53%, = 32%)

TABLE-US-00008 TABLE 8 Active Rate Activity [%] ingredient [g/ha] against POLCO IFT 13 35% DFF 37.5 55% IFT + DFF 13 + 37.5 95% (E.sup.C = 71%, = 24%)

TABLE-US-00009 TABLE 9 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 13 15% DFF 18.75 35% IFT + DFF 13 + 18.75 65% (E.sup.C = 45%, = 20%)

TABLE-US-00010 TABLE 10 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 6 0% DFF 75 70% IFT + DFF 6 + 75 99% (E.sup.C = 70%, = 29%)

TABLE-US-00011 TABLE 11 Active Rate Activity [%] ingredient [g/ha] against PHBPU IFT 6 20% DFF 75 70% IFT + DFF 6 + 75 98% (E.sup.C = 76%, = 22%)

TABLE-US-00012 TABLE 12 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 6 0% DFF 37.5 45% IFT + DFF 6 + 37.5 73% (E.sup.C = 45%, = 28%)

TABLE-US-00013 TABLE 13 Active Rate Activity [%] ingredient [g/ha] against PHBPU IFT 6 20% DFF 37.5 25% IFT + DFF 6 + 37.5 90% (E.sup.C = 4%, = 50%)

TABLE-US-00014 TABLE 14 Active Rate Activity [%] against ingredient [g/ha] AMAPA USA12001 IFT 6 0% DFF 18.75 35% IFT + DFF 6 + 18.75 65% (E.sup.C = 35%, = 30%)

TABLE-US-00015 TABLE 15 Active Rate Activity [%] ingredient [g/ha] against PHBPU IFT 6 20% DFF 18.75 3% IFT + DFF 6 + 18.75 60% (E.sup.C = 22%, = 38%)

TABLE-US-00016 TABLE 16 Active Rate Activity [%] ingredient [g/ha] against EPHHL IFT 6 70% DFF 37.5 30% IFT + DFF 6 + 37.5 95% (E.sup.C = 79%, = 16%)

TABLE-US-00017 TABLE 17 Active Rate Activity [%] ingredient [g/ha] against PHBPU IFT 6 20% DFF 9.375 0% IFT + DFF 6 + 9.375 40% (E.sup.C = 20%, = 20%)

TABLE-US-00018 TABLE 18 Active Rate Activity [%] ingredient [g/ha] against POAAN IFT 6 0% DFF 9.375 3% IFT + DFF 6 + 9.375 45% (E.sup.C = 3%, = 42%)

TABLE-US-00019 TABLE 19 Active Rate Activity [%] ingredient [g/ha] against POLCO IFT 3 0% DFF 37.5 55% IFT + DFF 3 + 37.5 83% (E.sup.C = 55%, = 28%)

TABLE-US-00020 TABLE 20 Active Rate Activity [%] ingredient [g/ha] against ECHCG IFT 3 73% DFF 18.75 5% IFT + DFF 3 + 18.75 99% (E.sup.C = 86%, = 13%)

TABLE-US-00021 TABLE 21 Active Rate Activity [%] ingredient [g/ha] against ECHCG IFT 3 73% DFF 9.375 5% IFT +DFF 3 + 9.375 97% (E.sup.C = 75%, = 22%)

TABLE-US-00022 TABLE 22 Active Rate Activity [%] ingredient [g/ha] against AMATA IFT 3 10% DFF 9.375 83% IFT +DFF 3 + 9.375 100% (E.sup.C = 85%, = 15%)