ISHS Acta Horticulturae 275: International Symposium on the Culture of Subtropical and Tropical Fruits and Crops
EFFECT OF ENDOSULFAN ON LEATHERY POCKET DISEASE IN PINEAPPLES, AND EVIDENCE FOR THE ASSOCIATION OF THE MITE, STENEOTARSONEMUS ANANAS (ACARINA: TARSONEMIDAE) WITH LEATHERY POCKET |
| Author: | G.J. Petty |
| Abstract:
Leathery pocket is at times a serious disease of pineapple fruits in the Eastern Cape of South Africa. Although it is caused by certain strains of the fungus Penicillium funiculosum, it was found that the insecticide endosulfan (hexachloro-hexahydro-methano-benzo-dioxathiepin-3-oxide), when applied from four to five weeks before forcing to eleven to twelve weeks after forcing, markedly reduced the incidence of the disease. Evidence that the mite Steneotarsonemus ananas Tyron, may play an important role in the development of the disease was obtained from two different studies : (i) on the efficacy of endosulfan for control of S.ananas, and (ii) on the relationship between populations of this mite and the incidence of leathery pocket. | |
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