scholarly journals Helicoverpa zea (Lepidoptera: Noctuidae) and Spodoptera frugiperda (Lepidoptera: Noctuidae) Responses to Sorghum bicolor (Poales: Poaceae) Tissues From Lowered Lignin Lines

2015 ◽  
Vol 15 (1) ◽  
pp. 2-2 ◽  
Author(s):  
P. F. Dowd ◽  
S. E. Sattler
Keyword(s):  
Sorghum Bicolor ◽  
Spodoptera Frugiperda ◽  
Helicoverpa Zea ◽  
Lepidoptera Noctuidae

Bionomics of the Fall Armyworm (Lepidoptera: Noctuidae) and Its Ectoparasitic Nematode, Noctuidonema guyanense, in South Georgia

1996 ◽  
Vol 31 (2) ◽  
pp. 209-217
Author(s):  
C. E. Rogers ◽  
O. G. Marti ◽  
L. D. Chandler ◽  
A. M. Simmons
Keyword(s):  
Spodoptera Frugiperda ◽  
Heliothis Virescens ◽  
Helicoverpa Zea ◽  
Fall Armyworm ◽  
Corn Earworm ◽  
Cotton Bollworm ◽  
Tobacco Budworm ◽  
Beet Armyworm ◽  
South Georgia ◽  
Lepidoptera Noctuidae

The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a perennial immigrant pest of several crops in south Georgia. Moths of S. frugiperda commonly are infested by an ectoparasitic nematode, Noctuidonema guyanense Remillet and Silvain in the Southeast. The seasonal chronology and natural association of these species are reported for Tift Co. from 1988 to 1994. Seasonal influxes of non-infested moths usually arrive in late April and dissipate in early November. Seasonal influxes of infested male moths follow the initial immigrants by 4 to 6 wks and disappear in the fall from 1 to 2 mos earlier than the general moth populations. Feral male moths that are moderately worn and infested by N. guyanense weigh less than moderately worn, non-infested males. Noctuidonema guyanense infests moths of several species of noctuids, but it has not been found on the cotton bollworm/corn earworm [Helicoverpa zea (Boddie)], tobacco budworm [Heliothis virescens (Fab.)], or beet armyworm [S. exigua (Hubner)].

Survival of Archytas marmoratus (Diptera: Tachinidae) in Helicoverpa zea and Spodoptera frugiperda (Lepidoptera: Noctuidae) at Low Temperatures and Short Days

2000 ◽  
Vol 35 (1) ◽  
pp. 9-21 ◽  
Author(s):  
F. I. Proshold ◽  
J. E. Carpenter
Keyword(s):  
Spodoptera Frugiperda ◽  
Low Temperatures ◽  
Helicoverpa Zea ◽  
Fall Armyworm ◽  
Host Population ◽  
Corn Earworm ◽  
Diapause Induction ◽  
Threshold Temperature ◽  
Lepidoptera Noctuidae ◽  
Short Days

Archytas marmoratus (Townsend) was reared on corn earworm, Helicoverpa zea (Boddie), or fall armyworm, Spodoptera frugiperda (J. E. Smith). Rearing chambers were programmed for a constant temperature of 15, 16, 19, 20, 22, 24, or 25°C and a photoperiod of 10:14 h (L:D) or 25°C and a photoperiod of 12:12 h (L:D). Development of parasitoids was faster when corn earworm larvae were parasitized than when fall armyworm larvae were parasitized. At 15°C parasitoid survival was poor on both hosts but at 16°C, more parasitoids eclosed on corn earworm than fall armyworm. Diapause induction in this strain of corn earworm was low. All pupae that eclosed after being in diapause produced an adult corn earworm. The data suggested that A. marmoratus is not influenced by diapause induction in its host but continues to develop above the threshold temperature for survival. This would restrict its overwintering as a larva or pupa to regions that have a continuous, nondiapausing host population. Thus, yearly establishment of A. marmoratus in more temperate areas would be required.

scholarly journals Attack and defense movements involved in the interaction of Spodoptera frugiperda and Helicoverpa zea (Lepidoptera: Noctuidae)

2016 ◽  
Vol 90 (2) ◽  
pp. 433-445 ◽  
Author(s):  
José P. F. Bentivenha ◽  
Edson L. L. Baldin ◽  
Débora G. Montezano ◽  
Thomas E. Hunt ◽  
Silvana V. Paula-Moraes
Keyword(s):  
Spodoptera Frugiperda ◽  
Helicoverpa Zea ◽  
Attack And Defense ◽  
Lepidoptera Noctuidae
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