Results 21 to 30 of about 4,929 (208)

Intraguild predation behaviour of ladybirds in semi-field experiments explains invasion success of Harmonia axyridis. [PDF]

open access: yesPLoS ONE, 2012
Harmonia axyridis has been introduced as a biological control agent in Europe and the USA. Since its introduction, it has established and spread, and it is now regarded as an invasive alien species.
C Lidwien Raak-van den Berg   +2 more
doaj   +1 more source

INTEGRATION BETWEEN INSECT GROWTH INHIBITORS, TRIGARD AND Coccinella septempunctata (L.) IN CONTROLLING [PDF]

open access: yesMesopotamia Journal of Agriculture, 2007
Results of the integration study between insect growth inhibitors Trigard (Cyromazine 75% W.P.) and ladybird beetle Coccinella septempunctata (L.) in controlling black bean aphid, Aphis fabae (Scopoli), showed that Trigard exhibit a good effect in ...
Nazar M. Al-Mallah
doaj   +1 more source

Abundance of Cereal Aphids (Homoptera: Aphididae) and Their Predators in Spring Wheat-Alfalfa Intercrops Under Different Crop Management Intensities [PDF]

open access: yes, 2018
Natural infestations of cereal aphids and abundance of their predators were compared from 1990 through 1993 among plots of intercropped spring wheat and alfalfa grown under high, intermediate, or low crop management intensity (CMI).
Evenson, Paul D   +2 more
core   +2 more sources

Ecological Observations on Predatory Coccinellidae (Coleoptera) in Southwestern Michigan [PDF]

open access: yes, 2017
Ecological observations on habitat utilization by thirteen species of predatory Coccinellidae were made at a southern Michigan site during 1989 and 1990. Most of species were common during both years and used both agricul- tural and uncultivated habitats.
Gage, S. H   +3 more
core   +2 more sources

Adaptations of Coccinella magnifica, a myrmecophilous coccinellid to aggression by wood ants (Formica rufa group). II. Larval behaviour, and ladybird oviposition location1

open access: yesEuropean Journal of Entomology, 2003
Like adults, larvae of the myrmecophilous ladybird Coccinella magnifica are rarely attacked by Formica rufa ants on foraging trails, but more often attacked on ant-tended aphid colonies.
John J. SLOGGETT, Michael E.N. MAJERUS
doaj   +1 more source

Decline in Relative Abundance of Hippodamia convergens (Coleoptera: Coccinellidae) in Fall Shoreline Aggregations on Western Lake Superior [PDF]

open access: yes, 2017
In the 1970s, migratory coccinellid aggregations on western Lake Superior shorelines consisted of over 90% Hippodamia convergens Guérin-Méneville. In 2014, the alien Harmonia axyridis (Pallas) accounted for over 80% of shoreline coccinellid aggregations ...
Lumen, Ryan P, Steffens, Wayne P
core   +3 more sources

Response of Coccinella septempunctata and Menochilus sexmaculatus (Coleoptera: Coccinellidae) to their aphid prey, Lipaphis erysimi (Hemiptera: Aphididae) in rapeseed-mustard

open access: yesEuropean Journal of Entomology, 2006
During a three year study in rapeseed-mustard crop, the response of two ladybird species, Coccinella septempunctata and Menochilus sexmaculatus was dependent upon density and time of appearance of their prey.
Jogender S. RANA
doaj   +1 more source

\u3ci\u3eHippodamia Variegata\u3c/i\u3e (Goeze) (Coleoptera: Coccinellidae) Detected in Michigan Soybean Fields [PDF]

open access: yes, 2018
Since its initial detection near Montreal, Canada in 1984, the variegated lady beetle Hippodamia variegata (Goeze) (Coleoptera:Coccinellidae) has spread throughout the northeastern United States.
Gardiner, Mary M, Parsons, Gary L
core   +2 more sources

An updated checklist of the ladybird beetles (Col., Coccinellidae) of Nepal [PDF]

open access: yesJournal of Insect Biodiversity and Systematics
The checklist of ladybird beetles in the coleopteran family Coccinellidae of Nepal includes 219 species belonging to 12 tribes and 55 genera. They are distributed from a wide elevation range from 81 m to 4500 m asl.
Sushila Bajracharya, Prem Budha
doaj   +1 more source

Abundance of Coccinellids and Their Potential Prey in Field-Crop and Grass Habitats in Eastern South Dakota [PDF]

open access: yes, 2018
A rich fauna of coccinellids occurs in eastern South Dakota, but the abundance of some species has declined in association with the establishment of an exotic lady beetle, Coccinella septempunctata (L.) (Coleoptera: Coccinellidae), in the mid-1980s.
Ellsbury, Michael M   +2 more
core   +2 more sources

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