Any experience using Dr Craig Harpers cocktail in freezing weather.

[Catscratch]

My experience with cold weather spraying is with diesel and (whatever) herbicide I'm using. Trees will usually leaf out in the spring and look like the applications didn't work. But a couple of months later the tree dies.

 

[Telemark]

Do you find tordon to thick for anything but cut stump? Thought about adding diesel because works best for black locas.

Never thought about thickness. I use it for cut stump and girdling. I use it sparingly because of its persistence. Generally I only use it on trees I've already tried to kill but for some reason they didn't totally die.

I don't kill black locust. Even though it's pokey and inconvenient, I find it to be a great late season food source for deer and other wildlife.

 

[BC Buck]

My experience with cold weather spraying is with diesel and (whatever) herbicide I'm using. Trees will usually leaf out in the spring and look like the applications didn't work. But a couple of months later the tree dies.

Had some hickory thinking just that. Oct sitten in treestand and some looked just like trees not treated. Thats when decided to try different herbicide.

 

[BC Buck]

Had some hard maple that took years of herbicide before death. Dont know what works best on hard maple and only had few trees.

 

[Telemark]

Had some hard maple that took years of herbicide before death. Dont know what works best on hard maple and only had few trees.

That's one of the trees I struggle with. The other is Callery pear.

It's unbelievable how difficult it can be to kill a big mature hard maple. I've been working on one for 3 years. Double ringed it with a chainsaw one year, no observable effect. Next year, ringed it again and squirted gly and 2,4-D in the wound, no noticeable difference. This year I cut deep into it with a chainsaw and squirted Tordon into it. We'll see next summer how it worked.

 

[omicron1792]

That's one of the trees I struggle with. The other is Callery pear.

It's unbelievable how difficult it can be to kill a big mature hard maple. I've been working on one for 3 years. Double ringed it with a chainsaw one year, no observable effect. Next year, ringed it again and squirted gly and 2,4-D in the wound, no noticeable difference. This year I cut deep into it with a chainsaw and squirted Tordon into it. We'll see next summer how it worked.

Why Craig’s cocktail exists. A chainsaw girdle with his cocktail and that tree is dead year one.

 

[BC Buck]

That's one of the trees I struggle with. The other is Callery pear.

It's unbelievable how difficult it can be to kill a big mature hard maple. I've been working on one for 3 years. Double ringed it with a chainsaw one year, no observable effect. Next year, ringed it again and squirted gly and 2,4-D in the wound, no noticeable difference. This year I cut deep into it with a chainsaw and squirted Tordon into it. We'll see next summer how it worked.

Two years double ring and Remedy. My bet trodon will kill. MO department conservation talked me into killing few I had. Really regret doing it. Those are beautiful trees and have best fall colors in MO.

 

[Telemark]

Two years double ring and Remedy. My bet trodon will kill. MO department conservation talked me into killing few I had. Really regret doing it. Those are beautiful trees and have best fall colors in MO.

I have too many of them. Over a hundred acres of maple-beech forest, which is considered "climax mesic closed-canopy" forest. The ones I'm trying to kill are for the sake of releasing some red oaks in order to get more acorn production. But yes, in the fall, from the lake, it is gorgeous.

 

[Telemark]

Why Craig’s cocktail exists. A chainsaw girdle with his cocktail and that tree is dead year one.

I'm going to Tractor Supply tomorrow to get more triclopyr ester.

 

[BC Buck]

1 gal Imazapyr 4sl 160.00
Tahoe 3 2.5 gal 115.00
ship 19.00

 

[BC Buck]

The mix looks good at 20F but thought had bad pump. Tried another pump with same results. Must create micro ice crystals that clog screen on pump. Above freezing pumps started working OK. Does not appear to penetrate bark like a diesel mix does. Realized how much I just give a small squirt without cutting 1" minus trees. Need to come up with mix that penetrates bark and also kills hickory.

 

[omicron1792]

The mix looks good at 20F but thought had bad pump. Tried another pump with same results. Must create micro ice crystals that clog screen on pump. Above freezing pumps started working OK. Does not appear to penetrate bark like a diesel mix does. Realized how much I just give a small squirt without cutting 1" minus trees. Need to come up with mix that penetrates bark and also kills hickory.

His mix requires a cut in the bark, I like a small electric chainsaw. Make a girdle or several angled down cuts around the tree.

A 1” tree I just fell real quick then hit stump with mix.

I have done basal spraying too. Didn’t have as much success but still works.

It def clogs a sprayer! I switched to a squirt bottle like what dish soap comes in.

 

[BC Buck]

His mix requires a cut in the bark, I like a small electric chainsaw. Make a girdle or several angled down cuts around the tree.

A 1” tree I just fell real quick then hit stump with mix.

I have done basal spraying too. Didn’t have as much success but still works.

It def clogs a sprayer! I switched to a squirt bottle like what dish soap comes in.

The prickly ash have a huge stem count. Find when cut then come back within couple seconds I still miss 1/2. Ended up with squirt bottle like you suggested.

 

[omicron1792]

The prickly ash have a huge stem count. Find when cut then come back within couple seconds I still miss 1/2. Ended up with squirt bottle like you suggested.

I def did some high stem count areas with basal spray too. I think I used half diesel have triclopyr 4.

I found it didn’t cover a ton of ground so I had to refill back sprayer a bunch. But I see how it would be useful in your case.

 

[BC Buck]

I def did some high stem count areas with basal spray too. I think I used half diesel have triclopyr 4.

I found it didn’t cover a ton of ground so I had to refill back sprayer a bunch. But I see how it would be useful in your case.

I spray just enough to let diesel creep all the way around any height and get excellent kill. Not on hickory or bush honeysuckle over 1".