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You searched for: Journal Journal of chemical ecology Remove constraint Journal: Journal of chemical ecology Publication Year 2008 Remove constraint Publication Year: 2008 Source 2008 v.34 no.6 Remove constraint Source: 2008 v.34 no.6 Subject Helicoverpa zea Remove constraint Subject: Helicoverpa zea
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1. Colored and White Sectors From Star-Patterned Petunia Flowers Display Differential Resistance to Corn Earworm and Cabbage Looper Larvae

Author:
Johnson, Eric T.; Berhow, Mark A.; Dowd, Patrick F.
Source:
Journal of chemical ecology 2008 v.34 no.6 pp. 757
ISSN:
0098-0331
Subject:
Helicoverpa zea; Trichoplusia ni; larvae; Petunia hybrida; pest resistance; resistance mechanisms; flowers; color; chemical constituents of plants; anthocyanins; mortality; antifeeding activity; body weight
Abstract:
... Anthocyanins are likely a visual aid that attract pollinators. However, there is also the possibility that anthocyanins are present in some flowers as defensive molecules that protect them from excess light, pathogens, or herbivores. In this study, resistance due to anthocyanins from commercial petunia flowers (Petunia hybrida) was examined for insecticide/antifeedant activity against corn earworm ...
Handle:
10113/22813
DOI:
10.1007/s10886-008-9444-0
PubMed:
18484139

2. Interspecific Pheromone Plume Interference Among Sympatric Heliothine Moths: A Wind Tunnel Test Using Live, Calling Females

Author:
Lelito, Jonathan P.; Myrick, Andrew J.; Baker, Thomas C.
Source:
Journal of chemical ecology 2008 v.34 no.6 pp. 725-733
ISSN:
0098-0331
Subject:
Helicoverpa zea; interspecific variation; sympatry; sex pheromones; antagonists; wind tunnels; Heliothis subflexa; mating behavior; pheromone blends; Heliothis virescens; odors; insect flight; sex attractants
Abstract:
... Three species of North American heliothine moths were used to determine the level at which interspecific female interference of male attraction to conspecific females occurs. We used live calling females of Heliothis virescens, H. subflexa, and Helicoverpa zea, as lures for conspecific males in a wind tunnel, and then placed heterospecific females on either side of the original species such that t ...
DOI:
10.1007/s10886-008-9475-6
PubMed:
18461401