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1. Host plant direct defence against eggs of its specialist herbivore, Heliothis subflexa

Author:
PETZOLD‐MAXWELL, JENNIFER; WONG, SARAH; ARELLANO, CONSUELO; GOULD, FRED
Source:
Ecological entomology 2011 v.36 no.6 pp. 700-708
ISSN:
0307-6946
Subject:
Heliothis subflexa,   etc   ; Physalis angulata; Physalis pubescens; field experimentation; greenhouse experimentation; hatching; host plants; leaves; moths; plant response; predation; probability; temperature;     Show all 13 Subjects
Abstract:
... 1. The insect Heliothis subflexa Guenée is a specialist on plants in the genus Physalis. In the present study, the physical response of Physalis leaves to egg deposition by H. subflexa is described. 2. It was observed that the leaves of Physalis plants respond to the eggs of H. subflexa, while co‐occurring non‐host plants do not. Leaves of Physalis angulata L. and Physalis pubescens L. respon ...
DOI:
10.1111/j.1365-2311.2011.01315.x

2. Fruit abscission by Physalis species as defense against frugivory

Author:
Benda, Nicole D.; Brownie, Cavell; Schal, Coby; Gould, Fred
Source:
Entomologia experimentalis et applicata 2009 v.130 no.1 pp. 21
ISSN:
0013-8703
Subject:
Heliothis subflexa,   etc   ; Physalis pubescens; Physalis angulata; fruit drop; pest resistance; resistance mechanisms; plant architecture; phytophagous insects; Heliothis virescens; larvae; instars; foraging; host seeking;     Show all 13 Subjects
Abstract:
... Fruit abscission as a response to herbivory is well-documented in many plant species, but its effect on further damage by mobile herbivores that survive fruit abscission is relatively unstudied. Physalis plants (Solanaceae) abscise fruit containing feeding larvae of their main frugivore, Heliothis subflexa Guenée (Lepidoptera: Noctuidae), a specialist moth. We tested the ability of H. subflexa la ...
Handle:
10113/22531
DOI:
10.1111/j.1570-7458.2008.00792.x

3. Is attraction fatal? the effects of herbivore‐induced plant volatiles on herbivore parasitism

Author:
Oppenheim, Sara J.; Gould, Fred
Source:
Ecology 2002 v.83 no.12 pp. 3416-3425
ISSN:
0012-9658
Subject:
Heliothis subflexa,   etc   ; Cardiochiles nigriceps; Helicoverpa zea; Heliothis virescens; Physalis angulata; cotton; eggs; encapsulation; field experimentation; frass; herbivores; hosts; larvae; leaves; oviposition; parasitism; parasitoids; saliva; tobacco; North America;     Show all 20 Subjects
Abstract:
... We investigated the relationship between parasitoid attraction to herbivore‐induced plant volatiles and larval parasitism rates of two closely related heliothine, noctuid moths. Heliothis subflexa Guenee is a specialist on plants in the genus Physalis, while Heliothis virescens Fabricius is an extreme generalist. In North America, these species serve as the only known hosts for the specialist para ...
DOI:
10.1890/0012-9658(2002)083[3416:IAFTEO]2.0.CO;2

4. Genetic analysis of differences in oviposition preferences of Heliothis virescens and H. subflexa (Lepidoptera: Noctuidae)

Author:
Sheck, A.L.; Gould, F.
Source:
Environmental entomology 1995 v.24 no.2 pp. 341-347
ISSN:
0046-225X
Subject:
Heliothis subflexa,   etc   ; interspecific variation; hybrids; Glycine max; oviposition; sex linkage; Gossypium hirsutum; genetic variation; Nicotiana tabacum; Physalis angulata; Heliothis virescens; strains; Oenothera;     Show all 13 Subjects
Abstract:
... Heliothis virescens (F) is a polyphagous pest on cotton soybean, and tobacco and H. subflexa (Guenee) is a monophagous nonpest on Physalis spp. Oviposition choices of the reciprocal F1 hybrids of these two species were compared with those of the parental strains to determine sex linkage, quantify niche breadth, and rank host preferences. Strains of H. virescens, H. subflexa, and the reciprocal F1 ...
DOI:
10.1093/ee/24.2.341