Dunleavy, JohnLambe, R.2021-04-302021-04-301967-10-01https://dr.lib.iastate.edu/handle/20.500.12876/104801<p>In 1956 only about 6 percent of the state's soybean fields had brown stem rot. In 1964, more than half the fields were infested. Already serious, with soybean acreages climbing, the problem could become acute.</p>articleisulib-bepress-aws-west287221835581farmscience/vol22/iss4/2Agriculture