Results 81 to 90 of about 162,464 (343)

Planktonic larval stages—an adaptation to lower predation rates in the pelagic environment?

open access: yesLimnology and Oceanography, EarlyView.
Abstract A majority of marine benthic macroinvertebrate and fish species have planktonic larval stages that disperse in the water column from days to months. However, the adaptive significance of pelagic larvae, and whether predation is higher in the pelagic or the benthic environment, is still debated, partly due to a lack of studies assessing larval ...
Per‐Olav Moksnes   +3 more
wiley   +1 more source

Factors Impacting the Use of an Allelochemical Lure in Pome Fruit for Cydia pomonella (L.) Monitoring

open access: yesInsects
A four-component blend comprising pear ester, DMNT, linalool oxide, and acetic acid (CM4K) was identified as a potent allelochemical lure for both sexes of codling moth (CM), Cydia pomonella (L.).
Alan Lee Knight   +2 more
doaj   +1 more source

Divergence in Gut Bacterial Community Among Life Stages of the Rainbow Stag Beetle Phalacrognathus muelleri (Coleptera: Lucanidae)

open access: yesInsects, 2020
Although stag beetles are popular saprophytic insects, there are few studies about their gut bacterial community. This study focused on the gut bacterial community structure of the rainbow stag beetle (i.e., Phalacrognathus muelleri) in its larvae (three
Miaomiao Wang, Xingjia Xiang, Xia Wan
doaj   +1 more source

Herbivores induce plant chemical defenses based on the identity of their attacking parasitoid

open access: yesOikos, EarlyView.
Many parasitoids increase plant fitness by decreasing herbivore feeding damage. Solitary parasitoids (where only one individual completes development per host) generally cause their hosts to feed less than unparasitized herbivores, reducing pressure on plants to induce chemical defense production.
Ryan L. Paul   +3 more
wiley   +1 more source

Development of the solitary larval endoparasitoid Glyptapanteles porthetriae (Hymenoptera: Braconidae) in its host Lymantria dispar (Lepidoptera: Lymantriidae)

open access: yesEuropean Journal of Entomology, 2000
The development of the solitary endoparasitic braconid Glyptapanteles porthetriae in gypsy moth larvae of different ages was studied. Host larvae were parasitized during the premolt to the 2nd instar (A-larvae), to the 3rd instar (B-larvae) or to the 4th
Christa NUSSBAUMER, Axel SCHOPF
doaj   +1 more source

Pathogenicity of indigenous entomopathogenic nematodes from Benin against mango fruit fly (Bactrocera dorsalis) under laboratory conditions [PDF]

open access: yes, 2018
Bactrocera dorsalis fruit fly is the economically most significant tephritid pest species on Mango, Mangifera indica L., in Benin, and entomopathogenic nematodes (EPNs) represent good candidates for its control in the soil.
Afouda, Leonard   +4 more
core   +2 more sources

Metabolism of Epoxidised Withanolides by a Generalist and a Specialist Insect Species

open access: yesChemistryOpen, EarlyView.
Larvae of Heliothis (Chloridea) virescence and subflexa have the ability to convert the epoxidized terpenoid 4β‐hydroxywithanolide E (4BHWE) to withanolide S. The conversion is found by feeding the larvae an artificial diet supplemented with 13C‐labeled 4BHWE.
Marie Pauline Sell   +4 more
wiley   +1 more source

Volatile compound diversity and conserved alarm behaviour in Triatoma dimidiata [PDF]

open access: yes, 2015
Background: Triatoma dimidiata (Latreille) is a key vector complex of Trypanosoma cruzi, etiologic agent of Chagas disease, as it spans North, Central, and South America.
Cruz López, Leopoldo   +4 more
core   +1 more source

Immune priming of honey bees protects against a major microsporidian pathogen

open access: yesPest Management Science, EarlyView.
We immune‐primed honey bees at two developmental stages in the laboratory and the field with heat‐killed Nosema ceranae spores. When subsequently fed live spores, immune‐primed adults had lower infection levels. Abstract BACKGROUND Honey bees face significant threats from pathogens like Nosema ceranae, a microsporidian parasite that contributes to ...
James C. Nieh   +6 more
wiley   +1 more source

Cumulative effect of HaNPV against Helicoverpa armigera infesting Chickpea

open access: yesEnvironment Conservation Journal, 2016
The instar-wise larval mortality in H. armigera due to HaNPV @ 0.500 ml/l showed a consistent decrease in all the five instars and cent per cent larval mortality was recorded in the first instar larvae.
C. Divya, D. M. Jethva, H. G. Kanara
doaj   +1 more source

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