The times of oviposition are affected little by the use of a night lighting program. Egg shell weight is not changed by the time of oviposition. Egg weight, shell percentage and it's color vary according to the time of oviposition. The egg characteristics have not been affected by the use of night lighting. Night lighting reduces the percentage of eggs downgraded, in particular reducing by 37 %...

discrimination of the germacrene D enantiomers in the moth Helicoverpa armigera. (2003) (-)-Germacrene D receptor neurones in three species of heliothine moths: structure-activity relationships. H. (2002), (-)-Germacrene D increases attraction and oviposition by the tobacco budworm moth Heliothis virescens. Chem. Senses, 27: 505-509 Papers are printed with permission from the publishers.

For insects, choosing a favorable oviposition site is a type of parental care, as far as it increases the fitness of its offspring. Niche theory predicts that crickets should show a bell-shaped oviposition response to substrate moisture. However, lab experiments with mole crickets showed a linear oviposition response to substrate moisture. Studies with the house cricket Acheta domesticus also s...

The selection of an appropriate oviposition site is crucial to the maternal fitness of eggraft producing mosquitoes. Females in this group of mosquitoes produce a single egg-raft during their lifetimes. All egg-raft producing mosquitoes are members of the subfamily Culicinae and include the medically important genera Culex and Culiseta. Egg-raft producing mosquitoes use several physical and che...

In Buenos Aires, the most crowded city of Argentina, there is a potential risk of dengue virus transmission by the mosquito Aedes aegypti during late summer. The temporal patterns of oviposition activity and abundance of breeding sites of this vector were studied in two cemeteries of the city. Between September 1998 and August 1999, we examined 142 ovitraps weekly and a total of 18,010 water-fi...

Insect parasitoids are known to deposit chemical signals on utilized hosts following oviposition. It is believed that these chemical signals alert future conspecifics of an exploited and thus sub-optimal host alleviating potential suffering among brood that would otherwise compete over a limited resource. Diachasma alloeum (Muesebeck) is a braconid wasp that specifically attacks two species of ...

pauesia antennata mukerji (hymenoptera, braconidae) as the unique parasitoid of the giant brown peach aphid, pterochloroides persiace cholodkovsky (hemiptera, aphididae) is considered to be the most effective biological control agent of this pest. in this study, the assessment of selected biological parameters of p. antennata demonstrated that the longevity of mature parasitoid was 3.90 ± 0.22,...

abstract in order to find out a better and cheaper artificial diet for mass rearing of common green lacewing, chrysoperla carnea, an experiment was conducted using completely randomized design (crd) with 4 replications and 5 observations. in this study were used three diets [a mixture of honey, yeast and distilled water (1:1:1), a mixture of honey, yeast plus extract of angomois grain moth eggs...

Many new insecticides today are marketed as having a reduced impact on beneficial insect species. Many of these claims are based upon survival following application to a field or research plot. However, surviving exposure to a pesticide does not necessarily mean that the insect has not been impacted in some way. This research was designed to measure not only the mortality caused by some newer i...

Chemical screening using Drosophila melanogaster (the fruit fly) is vital in drug discovery, agricultural, and toxicological applications. Oviposition (egg laying) on chemically-doped agar plates is an important read-out metric used to quantitatively assess the biological fitness and behavioral responses of Drosophila. Current oviposition-based chemical screening studies are inaccurate, labor-i...