thanks for all the usefull comments ..... i didnt know but suspected there are things i could tow behind a 4x4... When i first posted my question i thought i had made a big mistake as the first reply suggested. I have no idea how to get rid of persistent weeds ive sprayed them and then a different type takes over.... give me a building plan and i could build you a house but get rid of weeds etc ime stuffed so i thought i would ask others, but after the first reply i got the idea this forum is for experts that know everything and what they are doing..... but later others joined in and lots of suggestions so i changed my mind ie theres probably no such thing as a stupid question,,,,,,,,,,,, but there is a stupid answer..... plenty to do this spring/summer.