Results 31 to 40 of about 4,233 (181)

Comparing parasitoid life histories [PDF]

open access: yes, 2016
Species and clades are characterized by their unique combinations, or suites, of different life history traits. In parasitoids, traits include a core group common to other organisms, and a parasitoid-specific group.
Askew   +114 more
core   +1 more source

A contribution to the study of Eumeninae (Hymenoptera, Vespidae) in South-Eastern Iran [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2019
In this study thirteen species of subfamily Eumeninae are recorded from the Sistan-o Baluchestan province (South East of Iran). Among the studied material, five species including Cyrtolabulus karachiensis Gusenleitner, 2006; Cyrtolabulus syriacus ...
Fatemeh Hamzavi   +2 more
doaj  

Comparative seasonality and diets of German (Vespula germanica) and common (V. vulgaris) wasp colonies in Manawatu, New Zealand : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Zoology at Massey University [PDF]

open access: yes, 1995
German wasp (Vespula germanica) and common wasp (v. vulgaris) colonies were studied in urban and rural habitats in Manawatu, from January to August 1993.
Godfrey, Peter Lance
core  

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

open access: yesPest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks   +3 more
wiley   +1 more source

Control of the apple sawfly Hoplocampa testudinea Klug in organic fruit growing and possible side effects of control strategies on Aphelinus mali Haldeman and other beneficial insects [PDF]

open access: yes, 2004
The effect of Quassia extract on eggs and larvae of the apple sawfly Hoplocampa testudinea was studied. The efficacy of this extract is mainly due to an oral toxicity to the neonate sawfly larvae.
C.P.W., Zebitz   +8 more
core  

Behavioural responses of Frankliniella occidentalis Pergande larvae to methyl jasmonate and cis-jasmone [PDF]

open access: yes, 2013
The larval stages of Frankliniella occidentalis Pergande (Thysanoptera: Thripidae) cause more direct feeding damage to plants than the adults. We, therefore, investigated the behaviour-modifying effects on second instar larvae of two jasmonic acid ...
Barbara Egger, Elisabeth H. Koschier
core   +1 more source

Volumetric Comparison of Overall Brain and Neuropil Size Between Social and Non‐social Spiders: Exploring the Social Brain Hypothesis

open access: yesIntegrative Zoology, EarlyView.
Brain size may be influenced by the cognitive demands of sociality (social brain hypothesis). We used microCT to compare CNS and brain volumes in social versus solitary huntsman and crab spiders. Social huntsman spiders had larger arcuate and mushroom bodies, while social crab spiders had larger visual neuropils.
Vanessa Penna‐Gonçalves   +6 more
wiley   +1 more source

Insects and Survival: A Review of Primary and Secondary Defense Strategies

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva   +3 more
wiley   +1 more source

Lethal and sublethal toxicity of Fipronil and Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae). [PDF]

open access: yes, 2011
Psyttalia concolor (Szèpligeti) (Hymenoptera: Braconidae) is a koinobiont endoparasitoid of several species of tephritid (Diptera) larvae, such as Bactrocera oleae (Gmelin) and Ceratitis capitata (Wiedemann).
Adan del Rio, Angeles   +6 more
core   +2 more sources

To provide pollinator nesting habitat, cut dead perennial stems in their first winter

open access: yesInsect Conservation and Diversity, EarlyView.
Garden management practises need to consider stem‐nesting bees and wasps to avoid destroying active nests and important nesting materials. Volunteers collected samples of dead stems (in situ where they grew) in winter, spring, summer and fall as part of a participatory research project.
Hannah K. Levenson   +3 more
wiley   +1 more source

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