Increase in fertility, with repeated mating, of gamma irradiated male codling moths, <i>Laspeyresia pomonella</i> (L.) (Lepidoptera: Olethreutidae)

As, Robinson

doi:10.1139/z73-062

Cited by 8 publications

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“…Adult longevity usually is reduced by irradiation but under special circumstances may be prolonged (e.g., White and Hutt 1972). On occasions fertility has partially recovered from an initially sterilizing dose (Hutt and White 1973;Robinson 1973).…”

Section: Ionising Radiationmentioning

confidence: 99%

Physical Control of Insects—recent Developments

Banks

1976

Australian Journal of Entomology

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The scope of physical control of insects is summarised and recent developments (post -1969) in the field are reviewed. Physical control though offering great potential as a component of integrated control systems is not yet in widespread use against field pests. In stored commodity protection physical methods are of increasing importance and may completely replace current chemically-based protectant methods. Direct insect control by ionising radiation has received much attention but large scale application appears doubtful. Application of many physical methods is restricted by high capital cost and lack of post-treatment protection. A bibliography of recent reviews is given.

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Section: Ionising Radiationmentioning

confidence: 99%

Physical Control of Insects—recent Developments

Banks

1976

Australian Journal of Entomology

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“…In Atteva punctella (Cramer) up to 30% of rantings did not result in insemination (Taylor, 1967), in Heliothis virescens (F.) respectively, of matings were of this type (Flint & Kressin, 1969;North & Holt, 1971) and in Trichoplusia ni (Hiibner) 22% of matings were unsuccessful (North & Holt, 1968). In contrast to this, in Laspeyresia pomonella (L.) only 2% of nonirradiated males failed to inseminate the female successfully (Robinson, 1973). Also in Lepidoptera, females mated with sterile males fail to oviposit the normal number of eggs.…”

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confidence: 92%

GAMMA RADIATION AND INSEMINATION IN THE CODLING MOTH, LASPEYRESIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)¹

Robinsons

1974

Entomologia Exp Applicata

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Irradiated (15 and 35 krad) and nonirradiated male codling moths did not differ in their ability to transfer spermatophores when caged with nonirradiated virgin females. However, irradiation significantly reduced the inseminating ability of the treated males as determined by the presence of sperm in the spermathecae of the females. The females inseminated by the irradiated males oviposited significantly fewer eggs than the females inseminated by the nonirradiated males. No differences were found in the quantity of sperm present in the spermathecae. The length of the period of time between irradiation and mating (the post‐irradiation period) did not affect the insemination rate but the percentage egg‐hatch ability did show an increase with the length of this period. Résumé IRRADIATION GAMMA ET INSÉMINATION CHEZ LE CARPOCAPSE LASPEYRESIA POMONBLLA (LEPWOPTERA, OLETHREUTIDAE) Des mâles de Carpocapse irradiés à 15 at 35 krads conservent leur aptitude à transférer des spermatophores à des femelles vierges, mais leur pouvoir fécondant est réduit de faĉon significative, bien qu'on n'observe aucune différence dans la quantiTÉ de sperme présent dans la spermathèque des femelles, par comparaison avec des accouplements avec mâles normaux. Les femelles fécondées par des mâles irradiés déposent moins d'œufs que les femelles TÉmoins. La durée du temps écoulé entre l'irradiation et l'accouplement n'affecte pas le taux de fécundation, mais le pourcentage d'éclosion des œufs s'accroît avec l'allongement de cette période de post‐irradiation.

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Recovery from genetic damage induced by 4 krad X-rays in sperm of Tetranychus urticae Koch (Acari, Tetranychidae)

Feldmann¹

1978

Genetica

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When males of Tefranychus urticae (Koch) were irradiated with 4 krad X-rays, there was a significant decrease of dominant lethals in broods from matings 7 to 13 days after irradiation. No recovery of dominant lethals was observed in sperm which was stored in the female. There was also no effect on the fertility of F,-females following storage of sperm in the female. A significant increase of fertility of Fi-females was observed after successive mating of the irradiated males. A peak frequency of semi-sterile F r -females, which are supposed to be heterozygous for structural chromosome mutations, was observed in broods from males, 7 days after irradiation. The following spennatogenic stages were studied: mature sperm, late and early spermatids, and spermatogonia.Mature sperm is the most sensitive spermatogenic stage to the induction of dominant lethals and factors causing sterility and infecundity in F r -females. Early spermatids are the most sensitive spermiogenic stage for the induction of factors which cause semisterility in F r -females.

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Increase in fertility, with repeated mating, of gamma irradiated male codling moths, Laspeyresia pomonella (L.) (Lepidoptera: Olethreutidae)

Cited by 8 publications

References 0 publications

Physical Control of Insects—recent Developments

Physical Control of Insects—recent Developments

GAMMA RADIATION AND INSEMINATION IN THE CODLING MOTH, LASPEYRESIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)¹

Recovery from genetic damage induced by 4 krad X-rays in sperm of Tetranychus urticae Koch (Acari, Tetranychidae)

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Increase in fertility, with repeated mating, of gamma irradiated male codling moths, Laspeyresia pomonella (L.) (Lepidoptera: Olethreutidae)

Cited by 8 publications

References 0 publications

Physical Control of Insects—recent Developments

Physical Control of Insects—recent Developments

GAMMA RADIATION AND INSEMINATION IN THE CODLING MOTH, LASPEYRESIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)1

Recovery from genetic damage induced by 4 krad X-rays in sperm of Tetranychus urticae Koch (Acari, Tetranychidae)

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GAMMA RADIATION AND INSEMINATION IN THE CODLING MOTH, LASPEYRESIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)¹