Assessing Susceptibility of Insect Pests of Corn in Storage to Selected Insecticides.

Autor: Studebaker, G. E., Twaibu, A., Joshi, N. K., Bateman, N. R., Thrash, B.
Předmět:
Zdroj: B.R. Wells Rice Research Studies - Arkansas Agricultural Experiment Station, University of Arkansas System; Jul2023, Issue 694, p25-30, 6p
Abstrakt: The susceptibility of sawtoothed grain beetle, Oryzaephilus surinamensis, to pirimiphos-methyl, spinosad, deltamethrin, silicone dioxide and s-methoprene was evaluated utilizing 55-gallon barrels of stored corn. Spinosad provided protection to grain for 298 days. Pirimiphos-methyl protected grain for up to 329 days. Bioassays were conducted measuring the mortality of the red flour beetle, Tribolium castaneum, and the rice weevil, Sitophilus oryzae, to pirimiphos-methyl and deltamethrin in the laboratory. The LC50 for deltamethrin was 9.11 for S. oryzae and 0.026 for T. castaneum. The LC50 values for pirimiphos-methyl were 0.74 for S. oryzae and 13.44 for T. castaneum. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index