Lhb. Kanga et al., MONITORING TOLERANCE TO INSECTICIDES IN BOLL-WEEVIL POPULATIONS (COLEOPTERA, CURCULIONIDAE) FROM TEXAS, ARKANSAS, OKLAHOMA, MISSISSIPPI, AND MEXICO, Journal of economic entomology, 88(2), 1995, pp. 198-204
A glass vial technique was developed to estimate the toxicity of organ
ophosphorus, carbamate, cyclodiene, and pyrethroid insecticides to the
boil weevil, Anthonomus grandis grandis Boheman, and to monitor field
populations for tolerance to such insecticides. In tests in which res
ponses of the USDA Ebony strain boil weevils were compared with those
collected in the field in the Brazos Valley, TX, in 1988, tolerance to
organophosphorus, pyrethroid, and carbamate insecticides was demonstr
ated. The usefulness of the glass vial technique for monitoring tolera
nce was confirmed in 1991 and 1992 by field data from Texas, Arkansas,
Mississippi, Oklahoma, and Sonora, Mexico. These tests indicated tole
rance to organophosphorus and pyrethroid insecticides in several boil
weevil populations. Tolerance monitoring may be a useful technique in
the implementation of boil weevil eradication programs.