Effects of delayed mating and male mating history on the reproductive potential of Leucoptera coffeella (Lepidoptera: Lyonetiidae)

Abstract

1 Despite the importance of Leucoptera coffeella (Gue´rin-Me`neville) in coffee production worldwide, there is a lack of information on its reproduction. This knowledge will help in mass rearing, and support the development of behavioural control techniques for this insect. The present study determined the effects of delayed mating and previous matings of male L. coffeella on fecundity, egg viability and frequency of female remating. 2 The highest levels of fecundity and egg viability were obtained from matings of 1-3-day-old females. When females mated at 5 days of age, there were reductions of 40% in oviposition and of 43% in egg viability. 3 Females mated with 2-day-old virgin males were more fecund than those mated with older males; egg viability was also low (18%) from females mated with older males. 4 Virgin females that mated with virgin males laid a greater number of eggs than those mated with previously copulated males. Egg viability decreased with the increase in the number of previous male matings. 5 Five-day-old females remated in greater proportion than 2-3-day-old females.Females that copulated with males that had previously mated three times had higher rates of remating than those that copulated with virgin males. 6 The results obtained indicate that 1-3 days after emergence is the optimum age for mating. The implications of these findings for the control of L. coffeella by synthetic sex pheromone are discussed.

Managing the white grub beetle Dasylepida ishigakiensis (Coleoptera: Scarabaeidae) in sugarcane fields on Miyako Island, Japan, using sex attractant pheromone: effects of mating delay on the reproductive ability of laboratory-reared and field-collected females

“…Mating success -defined as the proportion of females that produced progeny relative to the number that were mated -was negatively affected when mating occurred relatively late in adulthood. Furthermore, consistent patterns were observed for several other parameters, including the number of eggs laid, number of eggs that produced progeny and hatchability, consistent with reports from lepidopteran species (Kiritani and Kanoh, 1984;Henneberry and Clayton, 1985;Wakamura et al, 1989;Rogers and Marti, 1994;Wakamura and Takai, 1995;Torres-Vila et al, 2002;Huang and Subramanyam, 2003;Michereff et al, 2004;Jiao et al, 2006;Walker and Allen, 2011). On the other hand, lifespan and the time between mating and oviposition were not greatly affected by mating delay.…”

Effect of Increased Male and Female Age at Mating on the Reproductive Performance of <I>Cnaphalocrocis medinalis</I> (Crambidae: Lepidoptera)

“…medinalis male treatment has also been shown to have a signiÞcant negative impact on egg number and hatchability of females over the lifespan, as has been reported in P. interpunctella (Huang and Subramanyam 2003), C. jactatana (Jimé nez-Pé rez and Wang 2003), Leucoptera coffeella (Gué rin-Mé neville) (Michereff et al 2004), and M. privata (Walker and Allen 2011). In these species, the effect of male mating delay on reproduction is less than that of females.…”

“…In some situations, mating disruption does not completely inhibit mating because some males may eventually Þnd females if given enough time (Torres-Vila et al 2002, Wenninger andAverill 2006). Nevertheless, several laboratory studies have shown that delayed mating can have a signiÞcantly negative effect on the reproductive performance of lepidopteran pests by decreasing female readiness to mate, and reducing the number of eggs laid and the hatchability (Torres-Vila et al 2002, Michereff et al 2004, Fitzpatrick 2006. Thus, even though mating disruption treatment may not inhibit mating completely, signiÞcant control of the pest population may be achieved through delayed mating (Miller et al 2006).…”

Influência da idade da fêmea na performance reprodutiva e longevidade de Argyrotaenia sphaleropa (Lepidoptera, Tortricidae)

“…Os resultados obtidos com fêmeas pareadas 1 dia após a emergência foram semelhantes aos dados observados por MANFREDI-COIMBRA et al (2005). A diminuição da fecundidade em decorrência da idade avançada da fêmea no momento da cópula foi observada em C. partellus (UNNITHAN & PAYE, 1991), C. jactatana (JIMENÉZ-PÉREZ & WANG, 2003), C. pomonella (KARALIUS & BÛDA, 1995;VICKERS, 1997), E. kuehniella (KARALIUS & BÛDA, 1995), E. postvittana (FOSTER & AYERS, 1996;FOSTER & HOWARD, 1999), G. molesta (FRASER & TRIMBLE, 2001), L. coffeella (MICHEREFF et al, 2004), H. virescens (PROSHOLD et al, 1982), L. botrana (TORRES-VILA et al, 2002), O. nubilalis (FADAMIRO & BAKER, 1999), S. exigua (ROGERS & MARTI, 1996) e Y. cagnagellus (KARALIUS & BÛDA, 1995). Esta redução na fecundidade pode ser explicada pelo fato de que fêmeas não copuladas diminuam ou impeçam a produção de oócitos e/ou pela ocorrência de reabsorção de ovos (TORRES-VILA et al, 2002).…”

“…Em algumas espécies como Y. cagnagellus (KARALIUS & BÛDA, 1995) e H. virescens (PROSHOLD et al, 1982), embora tenha sido verificada redução significativa da fecundidade com o aumento da idade, o mesmo não foi observado para a fertilidade, sendo estas duas as únicas espécies que não apresentaram queda no número de ovos férteis dentre as 12 espécies referenciadas neste trabalho. A exemplo de A. sphaleropa, há uma redução de mais de 50% do número de ovos férteis a partir do quarto dia após a emergência em E. kuehniella (KARALIUS & BÛDA, 1995), C. partellus (UNNITHAN & PAYE, 1991) e L. coffeella (MICHEREFF et al, 2004); já para G. molesta, há uma flutuação na fertilidade, sendo que fêmeas com 3 dias são as que apresentam maior potencial reprodutivo (FRASER & TRIMBLE, 2001).…”