Scientific Publication

The effect of salting sweet potato chips prior to drying on infestation by Araecerus fasciculatus

author(s) Rees, D.. - Agona, J.A.. - Silim Nahdy, M.. - Gigia, D.P.
from UK Foreign, Commonwealth & Development Office (FCDO)
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themes
regions
  • Caribbean
  • Latin America and the Caribbean
  • Americas
  • World
  • Eastern Africa
  • Sub-Saharan Africa
  • Africa
citation

Agona, J.A.; Silim Nahdy, M.; Gigia, D.P.; Rees, D. The effect of salting sweet potato chips prior to drying on infestation by Araecerus fasciculatus. Tropical Agriculture (Trinidad) (1998) 75 (1) 84-88

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Abstract

The efficacy of salting sliced sweetpotato chips prior to drying in reducing and (or) controlling damage levels of dried chips in storage by Araecerus fasciculatus Degeer (Coleoptera: Anthribidae) was investigated. Eight salt dosage rates on freshly sliced chips were evaluated. Artificial infestation of dried chips with adult A. fasciculatus was conducted. Gravid females were allowed to oviposit for one week and the infested chips incubated until the F1 generation adults had all emerged under prevailing environmental temperatures of 26.29 +- 1.19 deg.C and relative humidity 68.96 +- 7.39 percent. The number, weight, and generation time of A. fasciculatus that emerged varied significantly depending on the salt dosage rates. Best results were obtained with increasing salt dosage levels. Salt application rate at 2-3 percent is recommended for on-farm validation

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