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Efficacy of pest control strategies in Louisiana sugar cane: a preliminary survey

Published online by Cambridge University Press:  27 March 2009

E. O. Ogunwolu ,
T. E. Reagan  and
K. E. Damann Jr
E. O. Ogunwolu
Affiliation:
Departments of Entomology, Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA 70803, U.S.A.
T. E. Reagan
Affiliation:
Departments of Entomology, Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA 70803, U.S.A.
K. E. Damann Jr
Affiliation:
Departments of Entomology, Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA 70803, U.S.A.
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Summary

Although the first or second clonal cuttings of heat-treated sugar cane were widely used for seed, differences were not detected among crop years or locations in the incidence of ratoon stunting disease. Sugar-cane mosaic virus (SCMV) disease was widespread in all areas surveyed; however, the plant cane crop had a lower incidence of SCMV than the first or the second ratoon crop. The estimated cane yield was increased approximately 19·4 t/ha by heat treatment during the 2-year survey period.

The management system used to control the sugar-cane borer (SCB), Diatraea saccharalis (F.), was effective regardless of the crop year or area surveyed. Season-long SCB control was achieved by the use of two (1981) or three (1982) properly timed applications of insecticide and the use of a SCB moderately resistant variety resulting in an average of 6–9% bored sugar-cane internodes.

Poor weed management, particularly with johnsongrass (Sorghum halepense(L.) Pers.), accounted for much of the reduction in cane yield (P < 0·01); the estimated yields of the second ratoon crop were substantially altered, particularly those of farms surveyed in the Bayou Lafourche area.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 108 , Issue 3 , June 1987 , pp. 661 - 665
Copyright
Copyright © Cambridge University Press 1987

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