Miller Research held its annual Potato Pest Management Meeting on February 10, 2022, at the Historic Wilson Theater in Rupert, ID. Handouts from the presentations are available here. If you are interested in getting a copy of the poster shown by Dr. Jonathan Whitworth showing how different potato varieties react to different strains of PVY, please contact Dr. Whitworth directly at [email protected].
Please contact Jeff Miller (208-431-4420) with any feedback or suggestions for future meetings.
The 2021 Miller Research Potato Pest Management field day was a cold one! Thanks to everyone who braved the wind, rain, and cold. The handout from the meeting is attached here.
Miller Research LLC held its annual potato pest management seminar as a series of virtual meetings on February 16, 18, 23, and 25, 2021. Thank you to all who attended, participated, and provided feedback. Handouts of the PowerPoint presentations and links to the recordings are provided here.
Managing Fusarium Dry Rot
Options for managing Fusarium dry rot in the seed and at harvest, including seed handling, seed treatment, variety susceptibility, and post-harvest fungicide use.
Rhizoctonia Canker and Black Scurf
We discussed the importance of seed- and soil-borne inoculum and the effect of seed treatments and in-furrow fungicides on disease development.
Powdery Scab and PMTV
Symptoms of powdery scab and PMTV were discussed, along with the challenges associated with management recommendations for minimizing scab and PMTV symptoms.
Link to Recording
Recording password: pW2!j2Bw
Managing Pink Rot and Pythium Leak
Management options for pink rot and leak are presented. New research on the relationship between phosphite application and irrigation timing, along with optimal phosphite timing based on plant growth stage was also shown.
Link to Recording
Recording password: m=j$iK2s
Foliar Disease Management and Managing Fungicide Resistance
We offered a virtual tour of the 2020 variety trial, showing the relative susceptibility of common russet cultivars to early blight/brown spot and white mold. We also discussed the strengths of different fungicide programs, emphasizing the importance of proper use to avoid the development of fungicide resistance.
Link to Recording
Recording password: c3K+dig3
I recently had the opportunity to speak at the Utah State University Vegetable IPM Winter Webinar Series (January 20, 2021). Nick Volesky and I talked about common insect and disease problems of potatoes. It wasn’t possible to discuss all diseases, or spend a lot of time on the diseases we did discuss, but we were able to give a thumbnail view of some common diseases. We briefly covered the following topics:
- The role of seed certification
- The importance of quarantines, eradication, sanitation, fertility, and proper irrigation
- Fusarium dry rot
- Rhizoctonia canker and black scurf
- Late blight
- Early blight
- White mold
- Pink rot
- Pythium leak
A handout of the meeting slides is available here: Common_Pests_of_Potato_Diseases
The video of the meeting is available here: https://www.youtube.com/watch?v=0A9sey8av5k
Thank you to all who participated in the Potato Disease Quiz at the Idaho Potato Conference on January 22 and 23, 2020 in Pocatello, ID. Two people achieved a perfect score! Congratulations to Alan Malek and Shelbie Anderson and they were the winners of the Cabela’s gift cards sponsored by Gowan. Thank you to our sponsor and thanks to all those who participated!
2020 Idaho Potato Conference Disease Quiz
Answers to the quiz