Anthranilamide arthropodicide treatment

The present invention relates to a method of protecting a propagulum or a plant parasitic pests thereof, wherein the propagulum or propagulum is substituted by a compound of formula I in which A and B are independently oxygen or sulfur; R1 is hydrogen, alkyl, alkoxycarbonyl or alkylcarbonyl ; R2 is hydrogen or alkyl; R3 is hydrogen, alkyl alkenyl, alkynyl or cycloalkyl, each optionally substituted with one or more substituents selected from halo, cyano, nitro, hydroxy, alkyl, alkoxy, haloalkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkoxycarbonyl -, alkylcarbonyl, trialkylsilyl, phenyl, phenoxy, a 5-membered heteroaromatic ring or a 6-membered heteroaromatic ring wherein phenyl, the 5-membered heteroaromatic ring and the 6-membered heteroaromatic ring are each optionally independently substituted with 1 to 3 substituents selected from halo, alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, haloalkenyl, haloalkynyl, halocycloalkyl, cyano, nitro, alkoxy, haloalkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylamino, dialkylamino, cycloalkylamino, alkyl (cycloalkyl) amino, alkylcarbonyl, alkoxycarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl- or trialkylsilyl; or alkoxy; alkylamino, and dialkylamino; cycloalkylamino; -alkoxycarbonyl; or alkylcarbonyl; R4 is hydrogen or halogen, alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, cyano, alkoxy, haloalkoxy or nitro; R5 is hydrogen or halogen, alkyl, (O) R10, -C02R10, -C (O) NR10R11, -NR10R11, -N (R11) C (O) R10, -N (haloalkyl), haloalkoxy, R11) CO2R10 or -S (O) nR12; R6 is selected from the group consisting of H, halo, haloalkyl, cyano, alkoxy or haloalkoxy; R7 is alkyl, alkenyl, alkynyl, cycloalkyl, haloalkyl, haloalkenyl, haloalkynyl or halocycloalkyl or R7 is phenyl, benzyl, 5- or 6-membered heteroaromatic ring, naphthyl ring system or 8-9- or 10 membered condensed aromatic heterocyclic ring system, wherein each ring ring system optionally substituted with 1 to 3 substituents; or is contacted with a biologically effective amount of the N-oxide of the above compound or its agriculturally acceptable salt. The invention also encompasses the composition and propagulum containing the above compounds. HE