bornagain62511
5 year old buck +
Hi, what is the easiest and most effective way to kill unwanted spruce trees? We planted many 1000's of white spruce on our farm between 15 and 30 years ago and we want to thin some out to allow sunlight in so browse/brush will grow. In the past we've simply girdled a single ring around the trunks with a chain saw. It usually take about a year for the tree to die and lose it's needles, sometimes longer. What would be a more effective yet little time consuming way to kill them? I thought about spraying or brushing Tordon RTU into the girdle or even just a couple of saw cuts into the trunk if it would kill without a complete girdle??? Or some other type of herbicide? someone mentioned Progeny and blue bark oil mixed? I've searched for blue bark oil on the internet but haven't found anything about it or any place to buy it? Any advice would be greatly appreciated. Thanks!