Relationships of Glands, Cotton Square Terpenoid Aldehydes, and Other Allelochemicals to Larval Growth of Heliothis virescens (Lepidoptera: Noctuidae)

1992 ◽  
Vol 85 (2) ◽  
pp. 359-364 ◽  
Author(s):  
P. A. Hedin ◽  
W. L. Parrott ◽  
J. N. Jenkins
Keyword(s):  
Heliothis Virescens ◽  
Larval Growth ◽  
Terpenoid Aldehydes ◽  
Lepidoptera Noctuidae

Susceptibility of North Carolina Chloridea (Heliothis) virescens (Lepidoptera: Noctuidae) Populations From Flue Cured Tobacco to Chlorantraniliprole

2021 ◽  
Author(s):  
Gabriel Zilnik ◽  
Hannah J Burrack
Keyword(s):  
Heliothis Virescens ◽  
Foliar Application ◽  
Larval Growth ◽  
Laboratory Strain ◽  
Current Treatment ◽  
Tobacco Budworm ◽  
Resistance Development ◽  
Usage Patterns ◽  
Lepidoptera Noctuidae ◽  
Sublethal Concentrations

Abstract The tobacco budworm, Chloridea (Heliothis) virescens (F.), has evolved resistance to numerous insecticides in the field. In tobacco, chlorantraniliprole can be applied as either a preventative systemic soil application at or near transplant, or a foliar application timed to current treatment thresholds. With a novel mode of action chlorantraniliprole provides an option for rotation with other insecticides to reduce the probability of insecticide resistance development. However, specific usage patterns in tobacco have the potential to increase the risk of resistance development to this insecticide. In particular, soil applied treatments may expose C. virescens to sublethal concentrations of the insecticide. We studied chlorantraniliprole susceptibility in nine field populations and one laboratory strain of C. virescens using a diet incorporation bioassay. Mortality was measured at 7, 10, and 14 d after exposure. Our results demonstrated that bioassays should be evaluated at 14 d after exposure to optimize interpretation of the dose–response due to the antifeeding properties of chlorantraniliprole. We observed low variation within field-collected populations. Field populations were as susceptible as the laboratory strain; the resistance ratio at the 14-d evaluation for field-collected populations ranged from 1.01 to 1.05. A discriminating dose of 0.117, 0.080, and 0.070 μg a.i./g diet could be used at 7, 10, and 14 d, respectively. Larval growth varied between field populations. Two field populations continued growing on diet containing chlorantraniliprole and differed in size from the laboratory and other populations. Further evaluation of growth inhibition will be necessary.

Cell Culture Bioassay to Evaluate Allelochemical Toxicity to Heliothis virescens (Lepidoptera: Noctuidae)

1990 ◽  
Vol 83 (3) ◽  
pp. 737-741 ◽  
Author(s):  
R. D. Stipanovic ◽  
M. H. Elissalde ◽  
D. W. Altman ◽  
J. O. Norman
Keyword(s):  
Cell Culture ◽  
Heliothis Virescens ◽  
Lepidoptera Noctuidae

Genome Size and Endopolyploidy in Pyrethroid-Resistant and Susceptible Strains of Heliothis virescens (Lepidoptera: Noctuidae)

1993 ◽  
Vol 86 (4) ◽  
pp. 1030-1034 ◽  
Author(s):  
Martin Taylor ◽  
Jerome Zawadzki ◽  
Bruce Black ◽  
Martin Kreitman
Keyword(s):  
Genome Size ◽  
Heliothis Virescens ◽  
Lepidoptera Noctuidae
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