As promised, this is an update to the post I did on the Pine White Butterflies that are so numerous throughout the Pacific Northwest and Northern Rocky Mountains this summer.
I am speaking with Brytten Steed, an entomologist with the U.S. Forest Service in this audio podcast. Brytten answers the questions you all posed to me concerning the outbreak this summer of the pine white butterfly. Interestingly, Ponderosa Pine is the only tree affected in Montana while Douglas Fir can be affected in other areas west of Montana.
Information Links
Treatment: If you choose to treat your pine trees next spring, Bacillus thuringiensis (BT) is the treatment of choice to prevent damage while not killing beneficial insects.
Download: Pine White Butterfly PDF from Montana DNRC
Thanks to Brytten for taking the time to share her expertise on these butterflies. I will continue to post information as it becomes available.
Click the arrow below to listen to the audio podcast of my interview with Brytten.
Podcast: Play in new window | Download | Embed
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I first saw these beauties a few days before my birthday and I thought they were a perfect gift. There are plenty of critters who will probably balance the numbers. Relax and enjoy them! I live out in the country about 12 miles north east of Moscow, Idaho Colleen
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