Results 11 to 20 of about 7,192 (262)

Antennal Structures Used in Communication by Egg Parasitoids [PDF]

open access: yes, 2009
Egg parasitoids are considered the most effective biocontrol agents of crop pests among parasitic wasps, since they are able to remove the herbivore from the agroecosystem before larval eclosion. The use of arthropod eggs as hosts by parasitoids has evolved in the Hymenoptera at least in 14 families.
ROMANI, Roberto   +2 more
core   +4 more sources

Egg Parasitoids of Citrus Weevils in Guadeloupe

open access: yesFlorida Entomologist, 2008
To determine parasitism and mortality factors affecting citrus weevils in Guadeloupe an explor atory trip to the island was taken in the summer of 2006. Guadeloupe was surveyed for egg parasi toids and other natural enemies with the intent of augmenting the parasitoid species that have al ready been imported and released to control the citrus root ...
Ulmer, Bryan   +3 more
openaire   +4 more sources

Phenotypic plasticity and fitness in egg parasitoids [PDF]

open access: yesNeotropical Entomology, 2010
Several proxies can be used to estimate the fitness of egg parasitoids: size, longevity, fecundity, mating ability and vagility. All these proxies are positively correlated with the lifetime fitness gain of an individual. However, the phenotypic plasticity, which is the ability of a genotype to produce distinct phenotypes depending on environmental ...
Boivin,Guy, Guy Boivin
openaire   +5 more sources

Insect oviposition in herbaceous plants attracts egg parasitoids despite fungal phytopathogen infection [PDF]

open access: yesBiological Control
Egg parasitoids are important natural enemies of several insect pests. The ability to kill the pest before it can inflict damage to the plant makes egg parasitoids ideal candidates for biological control.
Mahmut Mete Karaca   +7 more
doaj   +2 more sources

Maize landraces recruit egg and larval parasitoids in response to egg deposition by a herbivore.

open access: yesEcology letters, 2012
Natural enemies respond to herbivore-induced plant volatiles (HIPVs), but an often overlooked aspect is that there may be genotypic variation in these 'indirect' plant defence traits within plant species. We found that egg deposition by stemborer moths (Chilo partellus) on maize landrace varieties caused emission of HIPVs that attract parasitic wasps ...
Tamiru, A.   +9 more
openaire   +3 more sources

Chemical Ecology of Egg Parasitoids Associated with True Bugs [PDF]

open access: yesPsyche: A Journal of Entomology, 2012
Parasitoids representing some 15 families of Hymenoptera develop in insect eggs; three of these families, Platygastridae (= Scelionidae), Mymaridae, and Encyrtidae, are associated with Heteroptera.
Eric Conti, Stefano Colazza
doaj   +2 more sources

How to escape from insect egg parasitoids: a review of potential factors explaining parasitoid absence across the Insecta. [PDF]

open access: yesProc Biol Sci, 2020
The egg is the first life stage directly exposed to the environment in oviparous animals, including many vertebrates and most arthropods. Eggs are vulnerable and prone to mortality risks.
Fatouros NE   +4 more
europepmc   +5 more sources

A review of Trichogramma Westwood parasitoids on eggs of Thaumetopoea pityocampa (Denis & Schiffermüller) in habitats of the Balkan Peninsula and Asia Minor [PDF]

open access: yesSilva Balcanica, 2023
Studies on egg parasitoids of the pine processionary moth (Thaumetopoea pityocampa) were conducted during the period 1991-2018 in native localities of the pest on the Balkan Peninsula and in Asia Minor.
Plamen Mirchev   +5 more
doaj   +3 more sources

Primeiro registro de parasitoides de ovos de Oebalus poecilus (Dallas, 1851) (Hemiptera: Pentatomidae) em arroz no Maranhão, Brasil

open access: yesEntomological Communications, 2020
First record of egg parasitoids of Oebalus poecilus (Dallas, 1851) (Hemiptera: Pentatomidae) in rice in Maranhão, Brazil  This is the first report of the species Trissolcus urichi (Crawford, 1913) and Telenomus podisi Ashmead, 1893 (Hymenoptera ...
Antonio J. de Melo Neto   +5 more
doaj   +1 more source

Egg parasitoids of Thaumetopoea pityocampa in the region of Gyumyurdzhinski Snezhnik in Eastern Rhodopes, Bulgaria [PDF]

open access: yesSilva Balcanica, 2023
The region of Gyumyurdzhinski Snezhnik in the Eastern Rhodopes is the closest in Bulgaria to the Aegean Sea. However, the climate is characterized by specific parameters that are determined by its relief.
Plamen Mirchev   +7 more
doaj   +3 more sources

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