Dutzmann, Stefan; Erdelen, Christoph; Andersch, Wolfram; Dehne, Heinz-Wilhelm; Hartwig, Jurgen; Stenzel, Klaus; Kramer, Wolfgang;

Pesticide

A composition includes synergistic amounts of: (a) a compound formula (I) ##STR1## wherein X represents .dbd.CH-- or .dbd.N--; E represents an electron-withdrawing radical; R represents optionally substituted hetarylalkyl; A represents hydrogen, alkyl, or a bifunctional group which is linked to the radical Z; Z represents alkyl, --NH-alkyl, --N(alkyl).sub.2 or a bifunctional group which is linked to the radical A, and (b) a fungicidal active compound, excluding cyclopropylcarboxamide derivatives and azolylmethylcycloalkanes. The combination of imidacloprid and a fungicidal active compound selected from the group consisting of tebuconazole and compounds of the formula ##STR2## is excluded.

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What is claimed is:

1. A composition comprising synergistic amounts of:

imidacloprid; and

the compound of formular XXXVIII ##STR17##

2. The composition of claim 1, wherein the composition comprises 0.1 to 10 parts by weight of compound XXXVIII per part by weight of imidacloprid.

3. The composition of claim 1, comprising 0.3 to 3 parts by weight of compound XXXVIII per part by weight of imidacloprid.

4. A process for preparing composition of claim 1, comprises mixing imidacloprid and compound XXXVIII with at least one ingredient selected from extenders, surface-active substances and mixtures thereof.

5. A process for the control of at least one fungi and insects, comprising applying the composition of claim 1 to at least one of fungi, insects, fungi habitat, and insect habitat; wherein the composition is applied at a concentration sufficient for controlling plant disease.

6. The process of claim 5, wherein the step of applying comprises treating seed with from 0.001 to 50 g of compound XXXVIII per kilogram of seed.

7. The process of claim 5, wherein the step of applying comprises treating soil with from 0.00001 to 0.1% by weight, compound XXXVIII.

8. The process of claim 5, wherein the weight ratio of imidacloprid to compound XXXVIII is from 1:0.1 to 1:10 and the composition is applied at a concentration sufficient for controlling plant disease.