Prom 1993 to 1997 a study of spatial distribution of most important weeds in apple orchard herbicide strips was performed. This study was continued in 1998, once the trees were cut down. As the time progressed, Epilobium adenocaulon Hausskn., Chenopodium album L., Polygonum aviculare L. and Atriplex patulum L. showed an increase in their occurrence. An opposite tendency was found with Erigeron canadensis L., Convolvulus arvensis L. and Taraxacum officinale Web. Some species grew in patches (Convolvulus arvensis L., Chenopodium album L., Atriplex patulum L.) , while the others appeared sporadically throughout the orchard. In 1998, the decrease of occurrence of Epilobium adenocaulon Haussk. was observed. Simultaneously, this was coupled with an increase of occurrence of Taraxacum officinale Web., Erigeron canadensis L. and Chenopodium album L. The predominating species in 1998 was Cerastium vulgatum L., followed by Lolium perenne L., Poa annua L. and Bromus mollis L.