Results 1 to 10 of about 3,711 (185)

Coccinellin, the Defensive Alkaloid ofthe Beetle Coccinella septempunctata [PDF]

open access: yesCHIMIA, 1971
Coccinellin, the defensive alkaloid of the beetle Coccinella septempunctata L., is shown by spectroscopic methods to be the new tricyclic derivative I (or III).
B. Tursch   +6 more
openaire   +3 more sources

Coccinella septempunctata Linnaeus. A 1758

open access: yes
Coccinella septempunctata Linnaeus, 1758 Coccinella septempunctata Linnaeus, 1758: 365: Korschefsky (1932): 486; Gordon and Vandenberg (1991): 847; Yu and Wang (1999): 94; Yu et al. (2000): 193; Irshad (2001): 1259; Poorani (2002): 21; Rafi et al. (2005): 45;: 188; Yu (2011): 45; Ali et al. (2012): 168; Ashfaque et al. (2013): 243.
Iqbal, Zafar   +9 more
openaire   +1 more source

Abnormal abundance of Coccinella septempunctata L

open access: yes, 1977
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Response of chrysopids (Neuroptera) to larval tracks of aphidophagous coccinellids (Coleoptera)

open access: yesEuropean Journal of Entomology, 2001
Choice tests showed that tracks left by coccinellid larvae have generally little effect on oviposition site selection by chrysopid females. Fresh tracks of first instar larvae of the coccinellid species Coccinella septempunctata, Cycloneda limbifer, Leis
Zdeněk RŮŽIČKA
doaj   +1 more source

Age dependent mate choice influences reproductive and progeny attributes in aphidophagous ladybird beetles (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2015
Despite the many studies on age based mate choice in insects, the question of how age influences mate choice in predaceous ladybird beetles is still unexplored.
Mahadev BISTA, OMKAR
doaj   +1 more source

Impact of imidacloprid on life-cycle development of Coccinella septempunctata in laboratory microcosms

open access: yesEcotoxicology and Environmental Safety, 2014
Long-term effects of a single application of imidacloprid on ladybird beetle, Coccinella septempunctata L., were studied in indoor laboratory microcosms, starting with the 2nd instar larvae of C. septempunctata but covering the full life cycle. The microcosms comprised enclosures containing a pot with soil planted with broad bean plants and black bean ...
Caihong Yu   +10 more
openaire   +3 more sources

Influence Of Temperature On Development Of Coccinella septempunctata (Coleoptera, Coccinellidae)

open access: yes, 2016
It was established as a result of research that the development of ladybird proceeds faster at the temperatures from15°C to 30°C. Increasing the temperature above 30°C, has a negative effect on the development of this species. At 15°C, embryonic development is completed in 16-18 days, at 20°C - 19-20, at 25°C-6-8, 27°C - 4-5, 30°C - 4-5 days.
S.Sh. Hasanova, B.A. Ahmedov
openaire   +2 more sources

Olfactory orientation of the seven-spot ladybird beetle, Coccinella septempunctata (Coleoptera: Coccinellidae): Attraction of adults to plants and conspecific females

open access: yesEuropean Journal of Entomology, 2000
The olfactory orientation of the aphidophagous ladybird Coccinella septempunctata L. was assessed in a Y-tube olfactometer and a choice arena. The response of the predator to 22 plants, aphid prey and conspecifics was tested.
Mara SCHALLER, Wolfgang NENTWIG
doaj   +1 more source

Aphid Species Affect Foraging Behavior of Coccinella septempunctata (Coccinellidae: Coleoptera)

open access: yesPakistan Journal of Biological Sciences, 2017
Flowers are admirable in scenic good looks and artistic beautification. These are also playing necessary roles in therapeutic preparations. Aphid is an important sucking pest of various flowers in ornamental territories and it is generally controlled by predators, so it was necessary to evaluate which aphid species affect the predator more or less ...
Muhammad Umar, Farooq   +2 more
openaire   +2 more sources

Laboratory Evaluation Of Coccinella Septempunctata Predation On Aphids And Mealybugs

open access: yesInternational Journal of Environmental Sciences
A study was done at SRM College of Agricultural Sciences (SRMCAS), Baburayanpettai, to find out if the ladybird beetle Coccinella septumpunctata could eat aphids and mealy bugs in Bhendi crops.In a free-choice test, results revealed that aphids were slightly more preferred (94.5%) than mealy bugs (84.82%), when both were exposed together to adults of ...
Ramazeame Loganathan   +2 more
openaire   +1 more source

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