1. Susceptibility of Different Populations of Tribolium confusum (Coleoptera: Tenebrionidae) to Malathion (EC 57%) in Flour Mills of Iran.
- Author
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JAVADZADEH, M., SHEIKHI-GARJAN, A., and HOSSEINI-GHARALARI, A.
- Subjects
CONFUSED flour beetle ,MALATHION ,FLOUR mills ,PEST control ,BIOLOGICAL assay ,DRUG dosage - Abstract
The confused flour beetle, Tribolium confusum, is a key pest of stored products such as wheat and flour. For decades, organophosphorus compounds, such as malathion and pirimiphos-methyl, have been applied against stored-product pests. In this research, susceptibility of different populations of T. confusum, collected from silos at different locations of Iran, against malathion (EC 57%), was studied in the laboratory, based on a completely randomized design. Based on pre-tests, the Bioassay Index Dose was estimated as 2 g a.i./m2. Out of 23 populations, 2 populations from Bandar-Abbas region were resistant populations against malathion (9.72% and 67.2% mortality), while one population from Khomein region was moderately resistant (86.08% mortality) and the rest of the population were susceptible to malathion (95.71% to 100% mortality). Therefore, in warm locations of Iran, where this pest has evolved resistance against malathion, other control measures shall be considered. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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