Results 121 to 130 of about 31,311 (291)

The influence of female oviposition strategy on sibling cannibalism in the ladybird beetle Harmonia axyridis (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2003
I hypothesized that sibling cannibalism is one of maternal investment in that a female controls sibling cannibalism. To test the hypothesis, I conducted a laboratory experiment and field observations to investigate sibling cannibalism in relation to ...
Naoya OSAWA
doaj   +1 more source

Persistence of deterrent larval tracks in Coccinella septempunctata, Cycloneda limbifer and Semiadalia undecimnotata (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2002
The persistence of oviposition-deterring effects of coccinellid and chrysopid larval tracks on females of three aphidophagous coccinellid species was compared.
Zdeněk RŮŽIČKA
doaj   +1 more source

Descriptions of the male of Heterodiomus marchali Brèthes and a new species of Chilean Heterodiomus Brèthes (Coleoptera: Coccinellidae: Scymninae: Diomini) [PDF]

open access: yes, 2003
Additions to the classification of South American Diomini are provided.
González F., Guillermo   +1 more
core  

Comparative genetic studies of native and introduced Coccinellidae in North America

open access: yesEuropean Journal of Entomology, 2005
During the past four decades, several species of aphidophagous Coccinellidae became established in North America, including Coccinella septempunctata, Harmonia axyridis, Hippodamia variegata, and Propylea quatuordecimpunctata.
Elliot S. KRAFSUR   +2 more
doaj   +1 more source

TGLE Vol. 51 nos. 1 & 2 full issue [PDF]

open access: yes, 2018
Full issue for TGLE Vol. 51 Nos. 1 &

core   +1 more source

Induction of reproductive diapause in Hippodamia convergens (Coleoptera: Coccinellidae) hinges on prey quality and availability

open access: yesEuropean Journal of Entomology, 2005
In the High Plains of western Kansas, USA, the convergent lady beetle Hippodamia convergens Guérin completes a spring generation feeding on cereal aphids in winter wheat before leaving fields in large numbers around the time of harvest.
J.P. MICHAUD, Jawwad A. QURESHI
doaj   +1 more source

A primary survey of aphid species on almond and peach, and natural enemies of Brachycaudus amygdalinus in As-Sweida, Southern Syria [PDF]

open access: yes, 2008
Syria is one of the biggest almond producer country in the world. Few arthropdes that live on almond are consider as pests. Aphids are one of the major pests their.
Almatni, W., Khalil, N.
core  

Demographic parameters of Diuraphis noxia (Hemiptera: Aphididae) and Hippodamia variegata (Coleoptera: Coccinellidae) recorded in the context of D. noxia infesting resistant and susceptible cultivars of wheat

open access: yesEuropean Journal of Entomology, 2015
The Russian wheat aphid (RWA), Diuraphis noxia (Kurdjumov), is a serious pest of small grains and can cause losses of about 80% in wheat yields. Chemical control is ineffective against this pest so the combined use of host plant resistance and biological
Leila ZANGANEH   +2 more
doaj   +1 more source

Arthropod diversity in peas with normal or reduced waxy bloom [PDF]

open access: yes, 2004
Crop traits can alter economically important interactions between plants, pests, and biological control agents. For example, a reduced waxy bloom on the surface of pea plants alters interactions between pea aphids and their natural enemies. In this study,
Biggam, Russell C.   +3 more
core   +2 more sources

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