Results 31 to 40 of about 585,882 (323)

An exotic parasitoid provides an invasional lifeline for native parasitoids

open access: yesEcology and Evolution, 2017
The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels.
Joanna K. Konopka   +5 more
doaj   +1 more source

Oviposition experience promotes active reproductive behaviour in a synovigenic parasitoid [PDF]

open access: yesJournal of Hymenoptera Research, 2023
Parasitoids are important insects that are commonly released into the environment to reduce the population sizes of pest species. The lifetime reproductive success of parasitoids mainly depends on host availability and the availability of mature eggs ...
Zi-Yin Wang   +4 more
doaj   +3 more sources

Descriptions of two new species of Platygaster Latreille that attack gall midges (Diptera, Cecidomyiidae) with notes on their biology (Hymenoptera, Platygastridae)

open access: yesZooKeys, 2018
Platygaster ingeniosus Matsuo & Yamagishi, sp. n. and P. urniphila Matsuo & Yamagishi, sp. n. (Hymenoptera: Platygastridae) are described from Japan.
Kazunori Matsuo   +5 more
doaj   +3 more sources

Impact of egg mass layers and scale thicknesses of the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), on the parasitic performance of Trichogrammatoidea bactrae (Hymenoptera: Trichogrammatidae)

open access: yesEgyptian Journal of Biological Pest Control, 2023
Background Fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), is one of the new alien destructive pests of maize and other 350 economic crops.
Hend O. Mohamed   +2 more
doaj   +1 more source

The Parasitoid Complex of Forest Tent Caterpillar, \u3ci\u3eMalacosoma Disstria\u3c/i\u3e (Lepidoptera: Lasiocampidae), in Eastern Wyoming Shelterbelts [PDF]

open access: yes, 2017
A parasitoid complex affecting the forest tent caterpillar, Malacosoma disstria, was investigated during 1978-79 in shelterbelts in eastern Wyoming.
Knight, G. A, Lavigne, R. J, Pogue, M. G
core   +2 more sources

The Discovery of Trissolcus japonicus (Hymenoptera: Scelionidae) in Michigan [PDF]

open access: yes, 2019
The invasive brown marmorated stink bug, Halyomorpha halys (Stål), is a pest of growing economic importance in the United States, the control of which currently relies on pesticide applications.
Gut, Larry   +4 more
core   +2 more sources

Tri-trophic effects of inter- and intra-population variation in defence chemistry of wild cabbage (Brassica oleracea) [PDF]

open access: yes, 2010
The eVect of direct chemical defences in plants on the performance of insect herbivores and their natural enemies has received increasing attention over the past 10 years.
Bullock, J.M.   +4 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   +3 more sources

No Intersexual Differences in Host Size and Species Usage in \u3ci\u3eSpalangia Endius\u3c/i\u3e (Hymenoptera: Pteromalidae) [PDF]

open access: yes, 2017
Spalangia endius were collected from fly pupae, primarily house fly and stable fly, from a poultry house in Indiana. Male and female wasps did not differ within and across host species in host size usage.
King, B. H
core   +2 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 ...
openaire   +4 more sources

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