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Title: SILVERLEAF WHITEFLY AND OKRA-LEAF COTTON - THE LEAF AREA FACTOR

Author
item Chu, Chang Chi
item CHEN, T - U OF A, TUCSON, AZ
item Henneberry, Thomas
item NATWICK, ERIC - UC R&EC HOLTVILLE

Submitted to: 2003 Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 6/1/2003
Publication Date: 7/1/2003
Citation: CHU, C., CHEN, T.Y., NATWICK, E.T. SILVERLEAF WHITEFLY AND OKRA-LEAF COTTON - THE LEAF AREA FACTOR. 2003 BELTWIDE COTTON CONFERENCE. 2003. pp. 1095-1096.

Interpretive Summary: A three-year study from 1999 to 2001 was conducted in Arizona to correlate trichome density, leaf perimeter and leaf area to the silverleaf whitefly, Bemisia tabaci (Gennadius) biotype B densities observed in the field. Five normal-leaf varieties and 4-5 okra-leaf varieties were compared each year. Trichome density was highly correlated to the whitefly densities while leaf perimeter per leaf also played a significant role.

Technical Abstract: A three-year study from 1999 to 2001 was conducted in Arizona to correlate trichome density, leaf perimeter and leaf area to the silverleaf whitefly, Bemisia tabaci (Gennadius) biotype B densities observed in the field. Five normal-leaf varieties and 4-5 okra-leaf varieties were compared each year. Trichome density was highly correlated to the whitefly densities while leaf perimeter per leaf also played a significant role.