01975naa a2200385 a 450000100080000000500110000800800410001910000240006024501830008426000090026752009100027665000130118665000110119965000140121065000150122465000130123965000100125265000240126265300120128665300110129865300160130965300150132565300150134065300090135565300150136465300150137970000190139470000190141370000190143270000180145170000200146970000180148970000130150777300690152010099482018-08-17 1990 bl uuuu u00u1 u #d1 aPLAPP JUNIOR, F. W. aMonitoring and management of pyrethroid resistance in the tobacco budworm (LepidopterabNoctuidae) in Texas, Mississippi, Louisiana, Arkansas and Oklahoma.h[electronic resource] c1990 aA treated glass vial monitoring technique was development in Texas in 1986 to test for resistence to pyrethroid insecticides in the tobacco budworm, Heliothis virescens (F.). Use of this technique was extended to Arkansas and Louisiana late in the 1986 season and to Mississipi and Oklahoma in 1987. More than 57,000 insects were tested from 1986 through 1988. Data are presented on the occurrence of resistance at each location by year and by month for the 3 yr. The data confirm the presence of region-wide resistance to pyrethroids in the tobacco budworm and suggests its successful management in areas where pyrethroid use was restricted to the critical midseason period. The data also represent baseline values for future resistance monitoring and confirm the us efulness of a discriminating dose assay as the basis for discriminating dose assay as the basis for determining the extent of resistance. aArkansas acotton aLouisiana amonitoring aOklahoma aTexas aHeliothis Virescens aControl aInsect aInsecticide aManagement aMississipi aPest aPyrethroid aResistance1 aJACKMAN, J. A.1 aCAMPANHOLA, C.1 aFRISBIE, R. E.1 aGRAVES, J. B.1 aLUTTRELL, R. G.1 aKITTEN, W. F.1 aWALL, M. tJournal of Economic Entomologygv.83, n.2, p.335-341, Apr. 1990.