A black box with a tall orange flag sits in a field.
Vole bait box in a tall fescue field.
Photo credit: Sprout Mahoney

Happy summer, blog readers! This is Sprout Mahoney, a soil science student entering their final year at OSU. I am so grateful I had the opportunity to intern with the OSU Extension office in Linn County. Working with Christy Tanner, the south valley Extension field crops agent, has educated me about how science fits into agriculture and how Extension helps to bring research with the community.

One project I got to participate in is Mint Pest Alert, a publication that goes out to mint growers around Oregon. Every week I visited mint fields to collect insect samples to identify pests and do population surveys. This information is vital for targeting pests at the right time in their lifecycle. Using precision treatments at the proper time helps to prevent broadscale pesticide use that can harm beneficial insects.

I was able to witness another research project happening in a local clover field where treatments for the clover seed weevil were being studied. It was fascinating to see researchers work together during the harvest and weighing of clover seed. Measuring the seed weights of the different plots can determine which treatments led to best yields, and conclusions can be drawn to which treatments were most effective against the weevil.

Aerial images of a field.
Aerial image of a vole bait box (left center) surrounded by healthy and damaged tall fescue plants. NDVI image of the same area (right), with green showing healthy growing vegetation and yellows/reds showing damaged vegetation and bare soil.
Photo credits: Christy Tanner and Sprout Mahoney

Another project was related to gray-tailed moles and their damage to grass seed fields. Vole damage in the Willamette Valley can be extensive and there are limited ways for growers to tackle the vole challenge. The study being conducted is to research the effectiveness of different vole baits and if these baits can be applied in above-ground boxes rather than directly into burrows. The tamper-resistant bait boxes are more cost-effective and also more directed, targeting the voles and limiting the risk of rodenticides to other vertebrate wildlife. I was able to join in multiple visits to tall fescue fields where these boxes were placed with different baits. We measured not only the amount of bait consumed at each plot but also took aerial photographs of the fields by drone. Analyzing this drone footage is another tool being used to measure stand growth and identify areas of greater or lesser damage.

The summer is a busy time for grass seed farmers in the Willamette Valley as they cut, dry, collect and process their crop. While doing field visits, I got to watch the different steps of this process and then research it further as I wrote an article about grass seed harvest for Extension’s “Growing” publication. My article informs the public know what is going on once the combines leave the fields.

I have greatly enjoyed my summer internship and all the activities I have been able to be a part of. The skills I have learned, the information I have gained, and the people who have inspired me will help to shape my future in agriculture. I look forward to continuing my academic and professional journey knowing that the OSU Extension Service is there to help the community in so many ways.

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