Drove the tractor around my brome field searching for prickly pear cactus. Found some & relocated it to an old chicken coop that I plan to burn soon. I filled the inside with wood & will add an accelerant. Do you think this will get the job done?
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From my experience with a similar amount of cactus to get rid of the answer is NO.
The cactus is loaded with moisture and won’t really burn well. It will start growing in size as the moisture vaporizes and then the ears will pop. The popping is strong enough to dislodge and throw coals a foot or two so be careful with that.
You might get it burnt partially with that amount of wood but you will need to add more to that (larger pieces) to keep the heat up for a longer time.
My process was in a 55 gallon “burn barrel“ and first attempt was to fill barrel about half full of wood and get it burning. Then I added the cactus but that was a slow process since too much cactus would start to extinguish the fire so you had to add the cactus at a judicious pace. So we then switched to fire in barrel and adding some cactus to fire and using an expanded metal “grill” on top of the barrel and placing cactus on the grill. Adding the cactus directly to the barrel still limited the fire and heat so we started with just the fire in barrel, cactus on grill until it popped and was charred then dropped that into the fire. That seemed to speed things up somewhat so we used that method until we were done with the cactus we collected.
I do think you will do some damage to the cactus but I think you will have some remnants that will still be able to grow. Now if you intend to load more wood or have more fires in this same spot you may be able to get it all burned.
I am still finding cactus plants and digging them out by the roots but believe I am winning the cactus eradication ”war” on my five acres since I have to work to find a cactus plant most of the time. I find a large cactus just out in places where I know that I walked by ever once in a while and just don’t know how it got that large without being seen.