Results 201 to 210 of about 4,287 (237)

Insect egg deposition induces Pinus sylvestris to attract egg parasitoids

Journal of Experimental Biology, 2002
SUMMARY Plant volatiles released in response to feeding insects are known to attract enemies of the feeding herbivores. In this study, egg deposition by a herbivorous insect was shown to induce a gymnosperm plant to emit volatiles that attract egg parasitoids.
Hilker, M., Kobs, C., Varama, M., Schrank, K.   +3 more
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Diapause in the egg parasitoid Trichogramma cordubensis: role of temperature

Journal of Insect Physiology, 2002
The role of temperature in the induction of diapause in Trichogramma cordubensis (Hymenoptera: Trichogrammatidae), under controlled laboratory conditions, was investigated using Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) eggs as hosts. Results indicate that prestorage temperatures and the duration of exposure of the parasitoids to these ...
Ventura Garcia, P., Wajnberg, Eric, Pizzol, Jeannine, Oliveira, M.L.M.   +3 more
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Body size and the timing of egg production in parasitoid wasps

Oikos, 2003
In insects several key fitness‐related variables are positively correlated with intraspecific variation in body size, but little is known about size‐related variation in the timing of egg production within species. Female insects are known to vary in the degree to which they concentrate egg production into the early part of life.
Ellers, J., Jervis, M.
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Biological control with egg parasitoids

1994
International ...
Wajnberg, Eric, Hassan, S.A.
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Nutritional Ecology of Insect Egg Parasitoids

2009
All animals require food and the food is the major issue that determines the biology of an organism. But there are a number of issues associated with the food that are involved. These include the location, confirmation, consumption, utilization and allocation of the resource (food) to the various aspects of the organism’s life style that determines the
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Intraguild interaction between egg parasitoids: the role of the host egg mass size and parasitoids’ reproductive capacities

2013
In Sicily, field collections of egg masses of the southern green stink bug, Nezara viridula (L.) (Heteroptera:Pentatomidae), revealed that two solitary parasitoids, Trissolcus basalis (Wollaston) (Hymenoptera: Platygastridae) and Ooencyrtus telenomicida (Vassiliev) (Hymenoptera: Encyrtidae), can exploit the same egg mass.
Cusumano, Antonino, PERI, Ezio, COLAZZA, Stefano   +2 more
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Other Egg Parasitoids: Research for Utilisation

2013
Among the seven hymenopteran families (other than Trichogrammatidae), which are known to exploit the eggs of pest insects, Scelionidae and Mymaridae are entirely egg parasitoids, while Encyrtidae, Eulophidae, Eupelmidae, Platygasteridae and Tetracampidae include scattered genera and species, a few of which as immatures or adults act as egg predators ...
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Egg Parasitoids Commercialization in the New World

2009
This chapter deals with the commercialization of egg parasitoid species that attack crop pests in the New World. It is discussed the current status of the worldwide commercialization of natural enemies in the U.S.A. and Europe, and with more details in the New World, including Brazil, Colombia, Mexico, Cuba, Ecuador, Venezuela and Peru. The reasons for
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The Evolution of Parasitoid Egg Load

2021
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Reproduction and Immature Development of Egg Parasitoids

2009
In this chapter I review the recent advances on egg parasitoids reproduction and immature development. Sperm production in adult male parasitoids varies depending on the status of their testes at emergence and these differences in sperm production are described by the spermatogeny index. Polygyny is common in Hymenoptera parasitoids and males that mate
openaire   +1 more source