RESISTANCE TO TWO CLASSES OF INSECTICIDES IN SOUTHERN CHINCH BUGS (HEMIPTERA: LYGAEIDAE)

Development of Resistance in Southern Chinch Bugs (hemiptera: Lygaeidae) to the Insecticide Bifenthrin

Buffalograss germplasm resistance to Blissus occiduus (Hemiptera: Lygaeidae).

Plant germplasm collections may offer genetic variability useful in identifying insect resistance. The goal of this project was to evaluate buffalograss genotypes [Buchloë dactyloides (Nutt.) Engelm.] for resistance to the chinch bug, Blissus occiduus Barber (Hemiptera: Lygaeidae), and to relate resistance to ploidy level, chinch bug number, and pubescence. Forty-eight buffalograss genotypes fr...

Na+/K+-ATPase resistance and cardenolide sequestration: basal adaptations to host plant toxins in the milkweed bugs (Hemiptera: Lygaeidae: Lygaeinae).

Despite sequestration of toxins being a common coevolutionary response to plant defence in phytophagous insects, the macroevolution of the traits involved is largely unaddressed. Using a phylogenetic approach comprising species from four continents, we analysed the ability to sequester toxic cardenolides in the hemipteran subfamily Lygaeinae, which is widely associated with cardenolide-producin...

St. Augustinegrass Cultivar Influences on Southern Chinch Bug and Predator Populations

Field and greenhouse studies were conducted in Georgia and South Carolina to determine the tolerance and antibiosis effects of 15 St. Augustinegrass genotypes against the southern chinch bug. ‘Floratam’ and ‘Floralawn’ cultivars were highly resistant to southern chinch bug populations in Georgia and South Carolina. When southern chinch bugs were caged on Floratam for 37 days in a greenhouse stu...

Posttreatment Feeding Affects Mortality of Bed Bugs (Hemiptera: Cimicidae) Exposed to Insecticides.

Insecticide sprays and dusts are used for controlling bed bugs, Cimex lectularius L. In natural environments, bed bugs have daily access to hosts after they are exposed to insecticides. The established laboratory insecticide bioassay protocols do not provide feeding after insecticide treatments, which can result in inflated mortality compared with what would be encountered in the field. We eval...