Patent ID: 8242123

Claim:
A method for combating or controlling insects, arachnids or nematodes comprising contacting an insect, arachnid or nematode or their food supply, habitat or breeding grounds with a pesticidally effective amount of a 4-Amino-5-chloro-thieno[2,3-d]-pyrimidine compound of formula I or a composition comprising a compound of formula I: wherein R 1 is selected from the group consisting of hydrogen, halogen, formyl, C 1 -C 10 -alkyl, C 2 -C 10 -alkenyl, C 2 -C 10 -alkynyl, C 1 -C 10 -haloalkyl, C 2 -C 10 -haloalkenyl, C 2 -C 10 -haloalkynyl, C 1 -C 10 -alkoxy, C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl, C 1 -C 10 -haloalkoxy, C 1 -C 10 -alkylthio, C 1 -C 10 -alkylsulfinyl, C 1 -C 10 -alkylsulfonyl, C 1 -C 10 -alkylamino, di(C 1 -C 10 -alkyl)amino, CN, CHNOH, CHNOCH 3 and CHNOC 2 H 5 ; R 2 is selected from the group consisting of hydrogen, halogen, C 1 -C 10 -alkyl, C 1 -C 10 -haloalkyl, C 1 -C 10 -alkoxy, C 1 -C 6 -alkoxy-C 1 -C 6 -alkyl, C 1 -C 10 -haloalkoxy, C 1 -C 10 -alkylthio, C 1 -C 10 -alkylsulfinyl, C 1 -C 10 -alkylsulfonyl, C 1 -C 10 -alkylamino and di(C 1 -C 10 -alkyl)amino; R 3 is hydrogen or C 1 -C 10 -alkyl; and A is wherein R 10 is C 3 -C 10 -alkyl or C 1 -C 10 -haloalkyl; or an agriculturally acceptable salt thereof.