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Coming to a Close

Two weeks ago today I had my last day at CLEREL and I already miss it!  I had such a great summer filled with amazing people and experiences.  I was able to get a hands on feel for research, I gained exposure to hops and grapes, I went to California and collected data in table and wine grape vineyards, I attended an NGWI conference in Napa and met a lot of influential people in the industry, and I started to think more seriously about what my plans should be after I graduate next May.CroppedTSSM

My last week was devoted to the hops.  I collected my leaves on Monday and spent the next few days counting mites.  I also borrowed a camera, which I was able to hook up to the microscope and take some photos of TSSM and predatory mites.  The photo to the left is a two spotted spider mite, distinguishable by the two black spots on either side of its abdomen.  The photo below is a predatory mite and if you look closely, you can see the outline of an egg.  It’s hard to determine the species of the predatory mite, as the only difference between species is the shape of the anal plate at the back of the abdomen.croppedPM

That Thursday, Tim cut down the Brewer’s Gold from the variety row in the hopyard and ran them through the harvester he made. After they went through we still had to pick a lot of the cones off by hand.  Tim is still trying to perfect the harvester and make it more efficient than hand harvesting.  Some of the bines had male flowers, which are the smaller, almost white flowers next to the cones in the photo below.   Once the hops had been harvested, Kim figured out the moisture percentage and how much the hops should weigh when they reach 10% moisture.  They were then put into a drying oven, and a sample was weighed periodically until it reached the target weight for 10% unnamedmoisture.  Kim used a moisture calculator found at the University of Vermont extension website here:

Today, I drove up to Geneva from Cornell, where I am back in the swing of classes.  I met Karen, a woman who works with mites at a lab there, and she helped me identify the predatory mites I had saved on slides.  I still have a few to go through, but mmale flowersost of the ones I collected are N. fallacis.  I did find several tydeid mites, which feed on fungus, not TSSM.  Under a microscope they looked distinctly different than the two species I released, which are phytoseiid mites. I will go through the rest of my slides on campus in Ithaca and finish putting all of my data together.  I am almost done with my project, and will be ready to present at the Internship Reception in October.


  1. Ed Murphy says:

    I red you comments on the web here and you referenced a man by the name of “Tim” that is developing a hops harvester and working to improve its efficiency.
    Can you share any information about Tim, the harvester location of development or where the Geneva field test was conducted to harvest Hops?
    I thank you for you help
    Ed Murphy

  2. Anna says:

    Hi Ed, Tim Weigle works with the Cornell Cooperative Extension at CLEREL (Cornell Lake Erie Research and Extension Lab). They have a hopyard there for research use and a harvester is one of the elements being researched. I know that the harvester was tested at CLEREL last summer, but I am unaware of any improvements made since then. Your best bet would be to visit, where all of the contact information is provided for the researchers at the station.

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