Results 71 to 80 of about 537 (154)

Biological Flora of Britain and Ireland: Geranium sylvaticum*

open access: yesJournal of Ecology, Volume 114, Issue 2, February 2026.
Geranium sylvaticum is a perennial forb of upland grasslands, woodlands and riverbanks in northern Britain, with scattered native occurrences also in Wales, central England and Northern Ireland. It has an extensive native range in Europe and Asia. The species is gynodioecious, with individual plants typically female or hermaphrodite.
Markus Wagner   +6 more
wiley   +1 more source

Sambucus nigra L. as a reservoir of beneficial insects (Diptera, Syrphidae)

open access: yesFolia Horticulturae, 2016
Black elder (Sambucus nigra L.) commonly occurs throughout the country – it can be found in forests, thickets, parks, balks or in home gardens. It is a valuable reservoir of food for beneficial insects and a place of refuge or wintering.
Wojciechowicz-Żytko Elżbieta   +1 more
doaj   +1 more source

Review of tribe Syrphini (Dip.: Syrphidae) in Iran [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2007
The specimens of the tribe Syrphini, deposited at the Hayk Mirzayans Insect Museum, were examined and 30 species identified, of which one genus and three species are newly recorded from Iran and marked by an asterisk (*).
E. Gilasian
doaj  

Oviposition preferences of Episyrphus balteatus.

open access: yesMededelingen (Rijksuniversiteit te Gent. Fakulteit van de Landbouwkundige en Toegepaste Biologische Wetenschappen), 2001
A crucial aspect of predator oviposition behaviour is host plant choice, especially in hoverflies where the newly hatched offspring are unable to move a great distance to search for the appropriate prey. Such offspring must generally feed on the host plant aphids previously selected by the mother.
Vanhaelen, Nicolas   +3 more
openaire   +2 more sources

Identification of limonene as a potential kairomone of the harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2010
Chemical cues involved in both host location and oviposition by Harmonia axyridis Pallas (Coleoptera: Coccinellidae) were investigated in laboratory and field experiments.
Ammar ALHMEDI   +2 more
doaj   +1 more source

Combination of morphometric and isotopic tools for studying spring migration dynamics in Episyrphus balteatus

open access: yesEcosphere, 2014
Migration and population dynamics are important in organisms that provide ecosystem services as they determine the occurrence of individuals in a given place at a given time, which, in turn, determines the efficiency of the service provided. To design appropriate landscape management strategies to improve the efficiency of biological control, it is ...
Raymond, Lucie   +2 more
openaire   +5 more sources

Pollination efficiency of important insect visitors on pomegranate (Punica granatum) under mid hill conditions of Himachal Pradesh

open access: yesThe Indian Journal of Agricultural Sciences
Insect pollinators are found to be highly significant in enhancing the quality fruit production and productivity. The experiment was conducted during April–May 2020 and 2021 at Dr Y. S.
SAKSHAM THAKUR   +5 more
doaj   +1 more source

Entomological survey of aphids natural enemies on two vegetable crops (Vicia faba and Solanum tuberosum) in the mountainous region of Kabylie (Iferhounène, Algeria)

open access: yesJournal of Biological Research
A survey of aphid natural enemies was carried out on two crops fava bean (Vicia faba) and potato (Solanum tuberosum) in the Iferhounène region (Tizi Ouzou, Algeria) between November 2022 and March 2023.
Nabila Taleb   +2 more
doaj   +1 more source

Cereal aphids (Hemiptera: Aphidoidea) in Serbia: Seasonal dynamics and natural enemies

open access: yesEuropean Journal of Entomology, 2008
During 1989-2006 the number of live aphid, mummies, aphid specialist predators and their parasitoids in cereal fields in Serbia were recorded. S. avenae and M. dirhodum were the most common, both on wheat and rye crops.
Željko TOMANOVIĆ   +5 more
doaj   +1 more source

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