Introduction / Background. Wisconsin continues to be a leader in the production of commercial tablestock and processing potatoes as well as seed in the US averaging over 77,000 K acres through the 5 year interval 2001 through 2005 (USDA, National Agricultural Statistics Service, 2006). Total farm gate value of the potato industry in the state has been valued at just over 201 M dollars per year ...

Russia, Ukraine and Kazakhstan are the leading agricultural producers, especially for potato, sugar beet and sunflower. The cumulative effect of adverse climatic conditions, high weediness and losses related to viruses and pests (without any insecticide and herbicide treatments) led to losses amounting to 40-80% of potential production in the Russian Federation and other mentioned countries. We...

Two experiments were conducted to measure the glycoalkaloid concentrations of potato tubers in response to Colorado potato beetle and manual defoliation. For plants defoliated by Colorado potato beetles, there was a significantly greater production of glycoalkaloids than in control plants and manually defoliated plants for both skin and inner tissue of tubers in experiment 1. In experiment 1, t...