Results 81 to 90 of about 46,647 (299)

Tree hollow parameters and their effects on saproxylic arthropod diversity: A multi‐taxon approach

open access: yesInsect Conservation and Diversity, EarlyView.
Tree hollows are keystone structures for biodiversity in forests and support saproxylic arthropods but are declining in central Europe due to intensive forest management, threatening these invertebrate communities. Research using DNA metabarcoding examined non‐beetle arthropods in 40 beech tree hollows, exploring their habitat requirements in southern ...
Bastian Schauer   +3 more
wiley   +1 more source

Host recognition and acceptance behaviour in Cotesia sesamiae and C. flavipes (Hymenoptera: Braconidae), parasitoids of gramineous stemborers in Africa

open access: yesEuropean Journal of Entomology, 2010
The host recognition and acceptance behaviour of two braconid larval parasitoids (Cotesia sesamiae and C. flavipes) were studied using natural stemborer hosts (i.e., the noctuid Busseola fusca for C.
Meshack OBONYO   +4 more
doaj   +1 more source

A catalogue of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) from India [PDF]

open access: yes, 2011
A catalogue of aphidiine parasitoids (Hymenoptera: Braconidae: Aphidiinae) associated with various aphids species occurring in India was compiled. The present catalogue with 125 species under 22 genera has been further reinforced with not only all the ...
Akhtar, Mir Samim   +2 more
core   +1 more source

Intrinsic competition and its effects on the survival and development of three species of endoparasitoid wasps [PDF]

open access: yes, 2009
In natural systems, pre-adult stages of some insect herbivores are known to be attacked by several species of parasitoids. Under certain conditions, hosts may be simultaneously parasitized by more than one parasitoid species (= multiparasitism), even ...
Gols, R., Harvey, J.A., Strand, M.R.
core   +3 more sources

Ensuring Pollinator Presence in Expanding Oil Crops: The Case of Mystrops debilis (Nitidulidae) and the Macauba Palm (Acrocomia aculeata, Arecaceae)

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The macauba palm (Acrocomia aculeata, Arecaceae) is a Neotropical native oil palm, increasingly important in Central and South America due to rising demand for raw materials and its potential for bioenergy. Understanding its pollinator ecology is crucial to identify new areas for cultivation. This study examines the structure of floral visitor
Javier Carreño‐Barrera   +3 more
wiley   +1 more source

Investment in cocoon-silk and structure of the clusters of cocoons produced by gregarious microgastrine wasps (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2009
After leaving their hosts, the larvae of endoparasitic braconid wasps pupate in cocoons. To determine their investment in cocoon silk, the dry weight of newly emerged wasps and that of the empty cocoons were measured for three gregarious braconid species
Jun TAGAWA, Yoshibumi SATO
doaj   +1 more source

The evolution of gregariousness in parasitoid wasps [PDF]

open access: yes, 1998
Data are assembled on the clutch-size strategies adopted by extant species of parasitoid wasp. These data are used to reconstruct the history of clutch-size evolution in the group using a series of plausible evolutionary assumptions.
Brothers D. J.   +9 more
core   +2 more sources

Bait Sprays Combined With Insecticides Targeted at Drosophila suzukii Have Negligible Impacts on Non‐Target Insects Compared to Full Foliar Spray Applications

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Current control of the invasive pest Drosophila suzukii relies primarily on insecticides, including the incorporation of phagostimulant baits. The impact of insecticidal bait sprays on beneficial insects in crops is largely unknown. In a laboratory and field trial, we exposed non‐target insects to insecticides with or without bait and compared
Michelle T. Fountain   +5 more
wiley   +1 more source

Comparison of the developmental time of Bracon hebetor (Hymenoptera: Braconidae) reared on five different lepidopteran host species and its relationship with digestive enzymes

open access: yesEuropean Journal of Entomology, 2014
Bracon (Habrobracon) hebetor Say is a polyphagous parasitoid of lepidopteran larvae, including those of the family Pyralidae. There are many reports that this parasitoid attacks the larvae of stored product and field crop pests.
Dorna SAADAT   +2 more
doaj   +1 more source

Notes on Microctonus Spp. (Hymenoptera: Braconidae) Introduced to Iowa Against the Alfalfa Weevil, Hypera Postica (Coleoptera: Curculionidae) [PDF]

open access: yes, 2017
The braconid parasitoid Microctonus colesi was released in Story and Boone counties, Iowa, but not recovered from collected alfalfa weevils, Hypera postica.
Mertins, James W
core   +2 more sources

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