POSTEMBRYONIC GROWTH AND DEVELOPMENT OF F₁ AND F₂ TOBACCO BUDWORMS (LEPIDOPTERA: NOCTUIDAE) FROM PARTIALLY STERILE MALES

Abstract

Can. Ent. 104: 165-172 (1972) Tobacco budworms, Heliothis virescens (F.), with inherited sterility caused by irradiation of the male parent were smaller than progeny from normal parents and developed more slowly throughout the larval and pupal periods. In the second generation the population segregated into two groups, those with normal and those with delayed development. Also, when the PI male received 15.0 krad, 8% of the F, larvae had more than the normal five instars. Moreover, when those F, progeny that had only five larval instars were outcrossed to normal moths, this tendency for supernumerary molts increased nearly 3-fold. The slower development of progeny of treated moths would have to be considered in field tests made to evaluate the effect of inherited sterility on the tobacco budworm. However, with continuous release of irradiated males, the delayed development or smaller size of the progeny should not lessen the possibility that this method could successfully suppress field populations.

Irradiation influence on the phenoloxidase pathway and an anti-oxidant defense mechanism inSpodoptera litura(Lepidoptera: Noctuidae) and its implication in radio-genetic ‘F1sterility’ and biorational pest suppression tactics

“…The F 1 viability in terms of growth and development of F 1 progeny might reflect the behavioral potency of F 1 adults to be exercised in inherited sterility for pre-harvest pest management (Seth & Sehgal, 1993; Seth & Sharma, 2001). The developmental rate of F 1 adult (100 Gy-Adult) was slower and could be attributed to the protracted development of F 1 progeny due to alteration in hormonal or enzymatic production caused by chromosomal rearrangements (Proshold & Bartell, 1970, 1972) and differential transcriptional regulation of PO pathway genes. The F 1 growth rate and GI (an indicator of somatic damage) showed a decrease as a consequence of irradiation to male parent (sub-sterilized).…”

Inherited Sterility in Insects

“…Sitotroga cerealella (Olivier) Angoumois grain moth Cogburn et al 1966 Lymantriidae Lymantria dispar (L.) gypsy moth Mastro et al 1989Proshold et al 1993Proshold 1995Maksimovic 1972Mastro et al 1989Mastro 1993Strom et al 1996 Teia anartoides Walker painted apple moth Suckling et al 2002Wee et al 2005Suckling et al 2002 Helicoverpa zea (Boddie) corn earworm bollworm tomato fruitworm Carpenter et al 1987cCarpenter and Gross 1989Carpenter 1991Carpenter and Wiseman 1992aHamm and Carpenter 1997North and Snow 1978Carpenter et al 1987a, 1987b, 1989Carpenter and Gross 1993Mannion et al 1994 Heliothis virescens (F.) tobacco budworm Proshold and Bartell 1970, 1972a, 1972bGuerra and Garcia 1976North and Snow 1978 Spodoptera exigua (Hübner) beet armyworm Debolt 1973Carpenter et al 1996 Spodoptera frugiperda (J. E. Smith) fall armyworm Carpenter et al 1983, 1986, 1997Carpenter and Young 1991Arthur et al 1993Hamm and Carpenter 1997Carpenter et al 1985 Carpenter and Wiseman 1992b Plodia interpunctella (Hübner) Indian meal moth Cogburn et al 1966Ashrafi et al 1972Ashrafi and Roppel 1973Brower 1976,...…”

LARVAL AND PUPAL ABNORMALITIES IN F1 PROGENY OF IRRADIATED MALE SPODOPTERA LITURA (F.) (LEPIDOPTERA: NOCTUIDAE)

“…Males (6-24 h old) irradiated with 10, 15 or 20 krad gamma radiation were mated with untreated females and all larvae which hatched were reared on an artificial diet (based on that reported by Shorey and Hale. 1965), to yield F, adults.…”