TY  - JA
AU  - Guthrie,W.D.
AU  - Grindeland,R.L.
AU  - Neumann,F.L.
AU  - Reed,G.L.
AU  - Russell,W.A.
TI  - Yield losses in maize caused by different levels of infestation of second-brood European corn borers
PY  - 1975///
T2  - Iwowa State Journal of Research
ER  -