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Elise Desjarlais

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About Elise Desjarlais

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  1. I'm not sure that this stand would follow some of the necessary conditions for a "retreat" - though that's something I actually hadn't heard of yet! We have no record of treatment here through the CISMA, and she still maintains that she's never given any permission for treatment to another entity. I hope there's not rogue treatments happening, that's not cool! I've let her know to keep me posted and if/when any sprouts come up to give me a ring, so we're keeping an eye on it. Still fascinating to see!
  2. Hi all, Well this is new. I was called to conduct a site visit for initial treatment by a woman in the city of Marquette who has knotweed. She has last year's growth still standing, so we were going to look at it this year to determine the next steps for first-time treatment for her. Upon arriving at the site, there's definitely knotweed, but nothing new growing this year. I'm stumped. I've never seen knotweed take care of itself, but she's been living in the house for 35 years, with the knotweed there for only about 4-5 years until she had someone ID it for her last year - so this year would have been the first treatment. Other knotweed sites in the UP are already at 4 feet of growth, if not more dependent on the site location, and this doesn't even have sprouts. Any ideas? Other than aliens or divine intervention? Has anyone else encountered knotweed that limited its own growth somehow?
  3. We have a small, laminated signs that we post during the treatments. I find its easiest (and the signs usually last) to leave them until we come back for our treatment monitoring plots. That way, we're making the drive anyway to analyze our treatment efficacy, and we can grab the sign at that point. Two birds, one car ride!
  4. Many thanks, Ryan! Those smaller details I'm really unfamiliar with, so your response really helped!
  5. Thanks, Katie! I've also been leaning towards really intense cow-parsnip, but I keep second guessing myself on this one!
  6. Hi all, I was recently called out to a site in our CISMA that was ID'd by the caller as giant hogweed. This far into the season, I've really started to sift out what is mis-identified cow parsnip, and what might actually be a valid sighting of hogweed. Getting to the site, I'm having a really difficult time deciding, so I figured I'd post my pictures here for some input. The only in-person viewing I've had of hogweed was at last year's CISMA field trip near Grand Haven, and from my pictures as well as online comparisons I'm still having difficulties! Its not helping the plant is on its way out for the season, so input would be greatly appreciated. Thanks all! For reference: the plants are topping out at 4' tall, seedheads were 9" across at best. Not sure if hogweed can grow smaller than usually reported? The hairy stems and matching seeds are stumping me.
  7. Thanks so much, Nor! I'll check into what its been sprayed with, maybe we're just using the wrong chemical for the most effective treatment. I'd definitely like to hear how it looks this year! Hope the treatment was successful!
  8. Hi all! I'm reaching out regarding the treatment of black swallowwort. Its still in the EDRR stages up here in the U.P., and in my CISMA area we only have one known infestation. We've been helping to treat it for multiple years now, but we're wondering if perhaps we're not using some of the best management practices on it. My questions are: 1. If you've treated it, what chemical did you find worked best? Or did you find a non-chemical solution worked well, too? 2. What time of year/phenology of the plant did you treat it? 3. Any other advice? Thanks everyone! Hope you all have a great weekend!
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