chemicals
- Thread starter Cobbkid
- Start date
Arnold Ziffle
Well-known member
Yes, there are many. I might be missing the point of your question, but I assume when you write "chemicals" you are wondering about herbicides -- if so, well there are many available that you can mix with water: Grazon P+D, Remedy itself, Reclaim, Amber, Tordon 22, Pastureguard, Weedmaster, Ally, etc. Talk to your local extension guy or herbicide dealer for recommendations that are specific to your area and the species that you are targeting. Grazon is probably the most commonly used, if it is not seasonally "outlawed". For example, in my area the use of Grazon is severely restricted most of the spring & summer due to cotton grown in close proximity -- I don't imagine you have that problem up there amongst the pine trees.
ollie'":24xgzwo6 said:
Stricly Remedy. Works on poison ivy, blackberrys, cedars Small ones foliar, big ones basal), MF rose (we all know what the MF stands for), locust, that's all I can think of off-hand. Seems to make thistles sick but doesn;t kill them very well.
dun
dun":3lpnm568 said:
Many Flowers, Multi Flora? :lol: :lol: :lol: Sorry, I couldn't resist. :oops: FWIW, Platoon + Banville or Roundup + Tordon will take care of your Canadian Thistle (at least) problems. If I misunderstood the statement, please disregard the above.
msscamp":11snkq1q said:
2,4-d takes care of them too. I just don;t mix it with the Remed if I'm spraying a large area to get rid of those roses or the berrys. We have finally gotten to the point that most of the thistle is under control with just spot spraying.
dun
dun":114sgqxs said:
I am so jealous I just can't stand it! :P War has been declared on Canadian Thistle around here, but it probably won't do much good since none of our neighbors spray for it on their property! :roll: :roll:
msscamp":12tk7n7u said:
It's taken 3 years of mechanical control. When they started to head out if that particular floweer didn;t have a weevil in it the flower was removed and composted. Over the winter, any rosette stage plants we find get hit with 2,4-d
dun
dun":2wwdzve3 said:
Well, this is year 2 of actively addressing the issue with intensive spraying. You lost me on the weevil part, what does that have to do with controlling Canadian Thistle? (Sorry for being dumb.) I went through 12 gallons of spray yesterday and today, and I'll check the places I sprayed tomorrow or Monday and hit anything that I missed or has just sprouted. Thanks for the tip on removing the flower, I don't know why I didn't think of that, it seems so obvious, but I didn't. What brand of 2,4-d do you use? I've noticed that the brand we use (Platoon) doesn't do as well on the bigger plants as compared to the kill rate on the smaller ones. Thanks for the help! :D
thistles will be blooming here any day now. ive gotten a pretty good handle on them though. the bull thistle (i think) i let bud out and then i whack it with a machete and dispose in a couple of garbage bags. too hard to see them until they start growing up and they flower immediately. i may dig the root up or spray it with roundup. the taller christmas tree ones i whack off right before they bloom and hope for rain. those that dont rot i spray with roundup or dig up. would probably be easier to just dig them up but i like to whack them off first b/c i dont get poked with them and plus i like to chop them up, its good stress relief. now that ive got htem under control i can move on to tropical soda apple weed and horse nettle and persimmon trees.
msscamp":3c36kqhd said:
If you wack off the long flower spike they'll just send up another one unless you hit it hard with a herbicide at the same time.
There is a weevil http://www.extension.iastate.edu/Public ... %20weevil'
that eats the flower buds in the larvae stage. We leave the thistles that are invested with them as a bilologic control. Just like most things, one method of control isn;t sufficient. We just choose to take advantage of the 3 common methods in conjuntion with one another.
dun
ollie'":2sfyz356 said:
Yup, never found a seed. Just a bunch of short ended fluff. That's where the grub concentrates is right where the flower part (seed) joins the bud. You can tell they're in there working because the flower won;t open and the pink ends that stick out of a bud as it opens are brown instead of pink
dun
Ollie, here's a bit of an update.
We've really put a hurting on the thistles and don't see any pink flower on the ones that the weevils get. But, over at the dairy where they have a couple of fields that are pretty thick with thistles I saw a good number of thistles with a pink flower but the center of the flower is dead/white. I pulled one apart an there was just a single grub in it. I guess the deal is that if you have a lot of thistles for them to choose from they aren;t very thorough if you only have a few they do a good job of killing the flower completely
dun
We've really put a hurting on the thistles and don't see any pink flower on the ones that the weevils get. But, over at the dairy where they have a couple of fields that are pretty thick with thistles I saw a good number of thistles with a pink flower but the center of the flower is dead/white. I pulled one apart an there was just a single grub in it. I guess the deal is that if you have a lot of thistles for them to choose from they aren;t very thorough if you only have a few they do a good job of killing the flower completely
dun
