Greg Tylka
Dr. Greg Tylka is a Morrill Professor in the Department of Plant Pathology and Microbiology at Iowa State University with extension and research responsibilities for management of plant-parasitic nematodes. The focus of Dr. Tylka's research program at Iowa State University is primarily the soybean cyst nematode (SCN), Heterodera glycines. Current research includes study of SCN-resistant soybean varieties, effects of nematode-protectant seed treatments, and the effects of cover crops on SCN biology and management. He also serves as director of the Iowa Soybean Research Center at Iowa State University.
Activities of the Tylka laboratory are primarily funded by the soybean checkoff, through grants from the Iowa Soybean Association, the North Central Soybean Research Program, and the United Soybean Board.
Dr. Tylka was born and raised in southwestern Pennsylvania, just outside of Pittsburgh. He attended California University of Pennsylvania, where he earned his bachelor's degree and master's degree in biology. He then attended the University of Georgia, where he earned his doctoral degree in plant pathology.
Dr. Tylka joined Iowa State University in February 1990.
Subscribe to RSS FeedAfter harvest is completed and equipment is cleaned and winterized, there’s an activity that can be done in upcoming weeks that could pay large dividends relating to future soybean yields. That task is collecting soil samples to assess the situation with the soybean cyst nematode (SCN) in fields...
Iowa State University recently updated its list of soybean varieties with resistance to the soybean cyst nematode (SCN) for Iowa. The list includes 200 varieties with the less common Peking SCN resistance. These varieties can be especially effective in managing SCN producing and higher yields in...
Planting soybean in the same field that just grew soybean is not recommended. Soybean yield will suffer even before factoring in environmental conditions, weather, and pest/disease pressures.
Four different studies in Minnesota and Wisconsin have shown a yield decline of at least 5% and...
Farmers may be planning to grow soybeans in 2022 in fields cropped to soybeans in 2021 because of high prices and limited availability of inputs for corn production. Doing this in fields infested with the soybean cyst nematode (SCN) is always a risky proposition. But growing beans on beans in...
The Iowa Soybean Association has hosted a farmer-oriented research conference in February for many years. In 2019, the event is moving out into the state. The ISA Farmer Research Tour will be held at three locations in the first two weeks of February. This article contains the dates and...
I’ve received lots of inquiries in the past few weeks about sampling fields for nematodes that feed on corn. Most every Iowa field has one or more different nematode species present at low numbers. But it’s only when numbers are at damaging levels that yield loss will occur.
Unfortunately...