DescrizioneAgrochemical compositionsDescription The present invention related to an agrochemical composition comprising at least one protoporphyrinogen-IX oxidase inhibitor as defined below and at least one inhibitor of complex II of the respiratory chain as defined below. The invention further relates to the use of this composition for controlling undesired vegetation, for the desiccation and/or defoliation of plants, for controlling phytopathogenic fungi and for increasing the health of plants. The invention further relates to a method for controlling undesired vegetation, to a method for the desiccation and/or defoliation of plants, to a method for controlling phytopathogenic fungi and to a method for increasing the health of plants by using said composition. Protoporphyrinogen-IX oxidase Hereinbelow, the inhibitor A will also be named "PPO inhibitor" or "herbicide" or "component" or "compound A".Further, the "inhibitor of complex II of the respiratory chain" will also be named "respiration inhibitor B" or "B" or "fungicide component B" or "compound B". In the case of crop protection compositions, it is desirable in principle to increase the specific activity of an active compound and the reliability of the effect. It is particularly desirable for the crop protection composition to control the harmful plants effectively, but at the same time to be compatible with the useful plants in question. Also desirable is a broad spectrum of activity allowing the simultaneous control of harmful plants. Fre-quently, this cannot be achieved using a single active compound.With many highly effective herbicides, there is the problem that their compatibility with useful plants, in particular crop dicotyledonous plants, such as cotton, oilseed rape and graminaceous plants, such as barley, millet, corn, rice, wheat and sugar cane, is not always satisfactory, i.e. in addition to the harmful plants, the crop plants, too, are damaged on a scale which cannot be tolerated. By reducing the application rates, the useful plants are spared; However, naturally, the extent of the control of harmful plants decreases, too. It is known that special combinations of different specifically active herbicides result in enhanced activity of an herbicide component in the sense of a synergistic effect. In this manner, it is possible to reduce the application rates of herbicidal active compounds required for controlling the harmful plants. Furthermore, it is known that in some cases joint application of specifically acting herbicides with other organic active compounds allows better crop plant compatibility is to be achieved. In these cases, the active compounds act as antidotes or antagonists and are also referred to as safeners, since they reduce or even prevent damage to the crop plants.I
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