Thanks for the info.
Parthenium is a mongrel of a weed it will go to seed anywhere from a couple of inches tall or 3 feet tall and once it starts to dry out it drops its leaves but still keeps seeding so makes it hard to kill which is why its a declared noxious weed and towns have parthenium washdown pads to help try and keep spread contained.
Am going to be using a systemic product with high water rates about 160l per hectare(16 gallon per acre) because of the large droplet sizes with these type of nozzles and to try and help force the drops to make their way through the 3ft high of growth. Unfortunately its going to be one of those jobs where you spray and then keep going back and spraying again every couple of months probably not going to get rid of it more just a control job.
hes got a little buggy with a 12v sprayer and a boom xtender nozzle on it for doing fencelines and it does that job ok but since this is going to a big enough job that i am pulling the gps out of the spray tractor and putting it in the toyota with the big tank i was just trying to get as much width as posible i suppose. i was looking at using them but the spray 101 link that licensed to kill posted showed them to not be that good which was why i was looking at the big brass teejet but thought wind would be more of a problem with it as it seems to spray upward to get the width.
Only way to get boom busters in australia would be to order from the us which makes them dearer again, I can get ones like beerweiser has in the pic of the kubota buggy from rapidspray but looking at how they just put out a straight half circle I thought that the sprayt would be more uneven than the others eg heavier in the center
Last edited by wacoaus; 06-23-2019 at 05:39 PM.