Fungicidal compositions containing N-acetonylbenzamides

DETAILED DESCRIPTION We claim: 1.
A fungicidal composition comprising synergistic fungicidally effective amounts of (a) a first fungicidally active compound having the formula ##STR3## or an agronomically acceptable salt thereof wherein R.
sup.
1 and R.
sup.
3 are each chloro, R.
sup.
2 is methyl, R.
sup.
4 is methyl, R.
sup.
5 is ethyl, and X is chloro; (b) the second fungicidally active compound which is the R-enantiomer of metalaxyl; and (c) an agronomically acceptable carrier.
2.
A method for controlling phytopathogenic fungi on a plant comprising the application of a synergistic fungicidally effective amount of the composition of claim 1 to the plant seed, to the plant foliage or to the growth medium for the plant.
3.
The method of claim 2 wherein the phytopathogenic fungi belong to the class Oomycetes and are of the genera Phytophthora, Plasmopara, Peronospora, Albugo or Pseudoperonospora.
4.
The method of claim 2 wherein the plant is a potato plant, a tomato plant, a grape plant or a cucumber plant.
5.
The method of claim 2 wherein the amounts of the first and second fungicidally active compounds applied comprise from 2 parts by weight to 90 parts by weight of the first fungicidally active compound and from 10 parts by weight to 98 parts by weight of the second fungicidally active compound per 100 parts by weight of the combined amount of the first and second fungicidally active compounds.




Description:
The present invention relates to new fungicidal compositions and their use as a method for controlling phytopathogenic fungi on plants.
It is always desirable to improve products which can be used by growers in order to combat fungal diseases of crops, and in particular diseases caused by fungi in the class Oomycetes.
It is also always desirable to reduce the doses of chemical products spread into the environment to combat fungal attacks on crops, in particular by reducing the application doses of the products.
It is also always desirable to increase the number of antifungal products available to growers in order that they will find, among these products, the one which is best suited to the grower's specific use