ECOLOGY AND POPULATION BIOLOGY Reproduction, Longevity, and Survival of Cactoblastis cactorum (Lepidoptera: Pyralidae)
نویسندگان
چکیده
Screened potted cactus,Opuntia ficus-indica (L.) Mill., plants containing pairs of adult male and female cactus moths, Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae), were placed in a cactus Þeld in St. Marks, FL, to measure oviposition patterns under ambient conditions. Results showed a narrow window for oviposition during third and sixth day of adult femaleÕs life. Peak oviposition activity occurred on the third day, whether measured in total fecundity, numbers of eggs per egg stick or numbers of ovipositions. After the third day, not only did oviposition rate decrease but also the quality of eggs produced declined. Percentage of egg hatch decreased and egg incubation increased. Longevity of adult males (6.3 0.79 d) did not differ from that of females (5.2 0.4), although female adults (157.8 4.5 mg) weighedmore than males (74.9 1.51). Therefore, from the perspective of mass rearing this moth, the optimal time for collecting eggs is limited to the third day in the life of the adult female.
منابع مشابه
Laboratory Performance of CaCtoblastis CaCtorum (LePidoPtera: PyraLidae) on South and north american opuntia SPecieS occurring in argentina
the cactus moth, Cactoblastis cactorum (berg), is native to South america. Since its unintentional arrival to the united States in 1989 and to mexican islands in 2006, it has become a serious threat to the diversity of both wild and cultivated species of opuntia mill. in north america. the native ecological host range of C. cactorum has not been directly ascertained and host acceptance is uncle...
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