TY  - BOOK
AU  - Summers, Charles G.
TI  - Effect of sorghum midge on grain sorghum production in the San Joaquin Valley relative todate of planting and plant spacing
KW  - Contarinia sorghicola
KW  - Sorgo
KW  - Plagas
N1  - Sobretiro de: Hilgardia 44 (6) : 127-140, 1976
ER  -