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You searched for: Publication year rev 8022-1978 Remove constraint Publication year rev: 8022-1978 Subject Helicoverpa zea Remove constraint Subject: Helicoverpa zea Subject term Heliothis virescens Remove constraint Subject term: Heliothis virescens
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1. Sex pheromone specificity in Heliothis

Author:
Tingle, F.C.; Mitchell, E.R.; Baumhover, A.H.
Source:
Journal of chemical ecology 1978 v.4 no.4 pp. 471-479
ISSN:
0098-0331
Subject:
Heliothis subflexa; Heliothis virescens; Helicoverpa zea; sex pheromones; sex attractants; trapping; pheromone traps; backcrossing; hybrids; mating behavior; olfactometry; wind tunnels; nocturnal activity
Abstract:
... Electric grid traps baited with Heliothis subflexa (Guenée), H. virescens (F.), or H. zea (Boddie) females captured conspecific males with few exceptions.Heliothis subflexa females reduced the attraction ofH. virescens and H. zea males when used as bait simultaneously with females of either of these two species. Backcrosses were made with H. virescens males and female hybrids from a cross between ...
Handle:
10113/23301
DOI:
10.1007/BF00989503

2. Inhibition of lepidopterous larval growth by cotton constituents

Author:
CHAN, B.G.; WAISS, A.C. JR.; BINDER, R.G.; ELLIGER, C.A.
Source:
Entomologia experimentalis et applicata 1978 v.24 no.3 pp. 294-300
ISSN:
0013-8703
Subject:
Helicoverpa zea; Heliothis virescens; Pectinophora gossypiella; aldehydes; allelochemicals; artificial diets; cotton; cyclopropenoid fatty acids; flavonoids; growth retardation; host plants; insects; larvae; larval development; leaves; proanthocyanidins
Abstract:
... Four classes of cotton constituents -- condensed tannins, flavonoids, terpene aldehydes and cyclopropenoid fatty acids -- were isolated from leaves and parts of squares and fed to Lepidopterous larvae in an artificial diet. The ED₅₀ required for growth inhibition of Heliothis virescens, H. zea and Pectinophora gossypiella larvae ranged from 0.1 per cent to 0.7 per cent of the weight of the diet. T ...
DOI:
10.1111/j.1570-7458.1978.tb02785.x