10 research outputs found
Insecticide Resistance in Sitophilus zeamais Mots. and Rhizopertha dominicav (F.) in Indonesia
Fourteen strains of Sitophilus zaemais and fifteen strains of Rhizopertha dominica, collected
from rice warehouses andfarmers' storage facilities throughout Indonesia were tested for resistance to
malathion and pirimzphos methyl. Two strains of S. zeamais showed a slightly resistant response to
malathion, while all strains of this species were susceptible to pirimzphos methyl. Resistance of R.
dorninica to malathion was detected in three out of the fifteen strains tested. The predominant species
of Sitophilus was S. zeamais
Evaluation of Resistance to Malathion and Pirimiphos Methyl in Strains of Tribolium castaneum (Herbst) collected in Indonesia.
Fifty-six strains of Tribolium castaneum (Herbst) collected from BULOG and commercial godowns
of village co-operative units and farmers' padi storage units from many parts of Indonesia were tested for resistance
to malathion and pirimiphos methyl. Forty-nine of these strains showed various degrees of resistance
while seven showed a susceptible response to malathion. All the strains of T. castaneum were susceptible to
pirimiphos methyl.
The dominant species of Tribolium spp. in Indonesia was found to be T. castaneum (Herbst)