Results 181 to 190 of about 7,214 (217)
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Ecological Entomology, 1997
1. In species such as quasi‐gregarious egg parasitoids, which exploit defendable patches, the fitness pay‐off from superparasitism is an important factor in considering the evolution of patch defence and optimal patch defence strategies.2. When oviposition in a previously parasitized host has a non‐zero fitness pay‐off, competing parasitoids are not ...
Field, S., Keller, M., Calbert, G.
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1. In species such as quasi‐gregarious egg parasitoids, which exploit defendable patches, the fitness pay‐off from superparasitism is an important factor in considering the evolution of patch defence and optimal patch defence strategies.2. When oviposition in a previously parasitized host has a non‐zero fitness pay‐off, competing parasitoids are not ...
Field, S., Keller, M., Calbert, G.
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Annals of the Entomological Society of America, 1985
Effects of eight constant temperatures ranging from 15 to 36°C and eight constant relative humidities ranging from 64 to 100% RH on development and emergence of Telenomus chloropus Thomson and Trissolcus basalis (Wollaston) were determined using Nezara viridula (L.) eggs as hosts. Developmental time of T.
Walker A. Jones +2 more
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Effects of eight constant temperatures ranging from 15 to 36°C and eight constant relative humidities ranging from 64 to 100% RH on development and emergence of Telenomus chloropus Thomson and Trissolcus basalis (Wollaston) were determined using Nezara viridula (L.) eggs as hosts. Developmental time of T.
Walker A. Jones +2 more
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Environmental Entomology, 1998
This study examines the influence of the size of the host patch (egg mass size) on the sex ratio produced by the scelionid egg parasitoid Trissolcus basalis (Wollaston) under laboratory conditions. The influence of this factor on the sequence in which male and female eggs are laid also is analyzed.
Colazza, S., Wajnberg, Eric
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This study examines the influence of the size of the host patch (egg mass size) on the sex ratio produced by the scelionid egg parasitoid Trissolcus basalis (Wollaston) under laboratory conditions. The influence of this factor on the sequence in which male and female eggs are laid also is analyzed.
Colazza, S., Wajnberg, Eric
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Journal of Chemical Ecology, 2009
We tested the hypotheses that host-searching behavior of the egg parasitoids Telenomus podisi and Trissolcus basalis may be differentially influenced by the different blends of volatiles released from the metathoracic glands of adult stink bug host species.
Martín Pareja +6 more
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We tested the hypotheses that host-searching behavior of the egg parasitoids Telenomus podisi and Trissolcus basalis may be differentially influenced by the different blends of volatiles released from the metathoracic glands of adult stink bug host species.
Martín Pareja +6 more
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Biological Control, 2006
Abstract Adults of Trissolcus basalis and Telenomus podisi were stored either at 15 or 18 °C after their immature development had been completed at 18 or 25 °C. Longevity of the parasitoids in the storage temperatures was evaluated, as well as fecundity and longevity following their return to 25 °C after different periods in reproductive diapause ...
Luís A. Foerster, Augusta K. Doetzer
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Abstract Adults of Trissolcus basalis and Telenomus podisi were stored either at 15 or 18 °C after their immature development had been completed at 18 or 25 °C. Longevity of the parasitoids in the storage temperatures was evaluated, as well as fecundity and longevity following their return to 25 °C after different periods in reproductive diapause ...
Luís A. Foerster, Augusta K. Doetzer
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, 2010
Female parasitoids forage for host resources essential to the development of their offspring, so patch exploitation decisions have a direct influence on their fitness.
S. Field
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Female parasitoids forage for host resources essential to the development of their offspring, so patch exploitation decisions have a direct influence on their fitness.
S. Field
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Environmental Entomology, 1995
The natural control exerted by Trissolcus basalis (Wollaston), a solitary egg parasitoid of Nezara viridula (L.), in soybean fields in central Italy over 6 yr has been assessed. T. basalis was the only egg parasitoid attacking N. viridula egg masses. In total, 260 N. viridula egg masses were collected. Of these, 105 contained at least 1 egg parasitized
Ferdinando Bin, Stefano Colazza
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The natural control exerted by Trissolcus basalis (Wollaston), a solitary egg parasitoid of Nezara viridula (L.), in soybean fields in central Italy over 6 yr has been assessed. T. basalis was the only egg parasitoid attacking N. viridula egg masses. In total, 260 N. viridula egg masses were collected. Of these, 105 contained at least 1 egg parasitized
Ferdinando Bin, Stefano Colazza
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, 1999
The responses of females of the egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) to volatile and contact chemicals from its host Nezara viridula (L.) (Heteroptera: Pentatomidae) were investigated in a Y-tube olfactometer and under
S. Colazza, G. Salerno, E. Wajnberg
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The responses of females of the egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera: Scelionidae) to volatile and contact chemicals from its host Nezara viridula (L.) (Heteroptera: Pentatomidae) were investigated in a Y-tube olfactometer and under
S. Colazza, G. Salerno, E. Wajnberg
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Naturwissenschaften, 2009
Chemical footprints left behind by true bugs are perceived as contact kairomones by scelionid egg parasitoids. Female wasps encountering a contaminated artificial substrate display a characteristic arrestment posture, holding the body motionless and antennating the surface.
COLAZZA, Stefano +3 more
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Chemical footprints left behind by true bugs are perceived as contact kairomones by scelionid egg parasitoids. Female wasps encountering a contaminated artificial substrate display a characteristic arrestment posture, holding the body motionless and antennating the surface.
COLAZZA, Stefano +3 more
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Australian Journal of Ecology, 1994
Abstract Populations of the morphologically defined taxon Trissolcus basalis (Wollaston) from two major hosts (Nezara viridula [L.] and Agonoscelis rutila [F.]) were tested, using biological criteria, to determine whether they represented populations of one genetical species, or whether they represented populations of two host‐associated sibling ...
Clarke, A.R., Walter, G.H.
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Abstract Populations of the morphologically defined taxon Trissolcus basalis (Wollaston) from two major hosts (Nezara viridula [L.] and Agonoscelis rutila [F.]) were tested, using biological criteria, to determine whether they represented populations of one genetical species, or whether they represented populations of two host‐associated sibling ...
Clarke, A.R., Walter, G.H.
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