Results 81 to 90 of about 757 (181)

The toxic effect of camphor vapour against Aphis craccivora Koch (Hemiptera: Aphididae) and some of its natural enemies

open access: yesJournal of Crop Protection, 2016
Fumigant toxicity of camphor was studied against the aphid Aphis craccivora Koch and three associated natural enemies, i.e. Coccinella undecimpunctata L., Aphelinus albipodus Hayat & Fatima and Aphidius colemani Viereck.
Dalia Adly, Ehab Bakr
doaj  

Insects in the Killbuck Marsh Wildlife Area: 1993 Survey [PDF]

open access: yes, 1995
Author Institution: Ohio Agricultural Research and Development Center, Ohio State UniversityThe Killbuck Marsh Wildlife Area was the focus of a seven month survey performed in 1993 to determine the diversity of selected insects.
Ellis, M. S.   +2 more
core  

Intraguild predation between the invasive ladybird Harmonia axyridis and non-target European coccinellid species [PDF]

open access: yes, 2018
The coccinellid Harmonia axyridis (Pallas) has been used for augmentative and classical biological control in many environments. More recently it has invaded large parts of Europe and negative effects for native populations of aphidophagous coccinellids ...
Babendreier, Dirk   +3 more
core  

The Arthropoda fauna of Corvo island (Azores): new records and updated list of species [PDF]

open access: yes, 2003
Copyright © 2003 Universidad de La Laguna.Se exponen los resultados de artrópodos (phylum Arthropoda) colectados y observados en la isla de Corvo, archipiélago de las Azores, durante los días 26.VII.1999 y 11-13.IX.2002. Con la inclusión de la literatura
Borges, Paulo A. V.   +3 more
core  

BIONOMICS OF LADYBIRD BEETLES IN DISTRICT BANNU OF KHYBER PAKHTUNKHWA, PAKISTAN

open access: yesFUUAST Journal of Biology, 2018
Family Coccinellidae of order Coleoptera is of great economic importance because of its predatory and phytophagous nature.The present study was conducted to describe the Coccinellid fauna and their distribution in district Bannu.
ATA UR REHMAN   +2 more
doaj  

Interactions between Plutella xylostella, Diadegma semiclausum and some generalist predators of brassica crops. [PDF]

open access: yes, 2011
While much is known about the diamondback moth, Plutella xylostella (L.) (Plutellidae) (DBM), the most important pest of brassica crops worldwide, there is little understanding about the dynamics of predatory invertebrates in brassica systems.
Lankin Vega, Gabriela
core   +1 more source

Observation of Insect Coccinella undecimpunctata Parasitizing on the Pathogen of Powdery Mildew in Barley and Wheat

open access: yesRomanian Agricultural Research
Powdery mildew caused by Blumeria graminis f. sp. hordei and Blumeria graminis f. sp. tritici infects barley and wheat, respectively. The use of chemical pesticides to combat diseases has led to many problems, such as environmental pollution, the residual effect of pesticides on agricultural products, the emergence of new strains of pathogens the ...
Somia Eissa Sharawi   +8 more
openaire   +1 more source

Cost and benefits of the morphological defences in larvae of Scymnus nubilus Mulsant (Coleoptera: Coccinellidae) [PDF]

open access: yes, 2012
Dissertação de Mestrado - Biotecnologia em Controlo Biológico.Diferentes mecanismos de defesa contra a predação e parasitismo evoluíram entre os insectos. Estes podem ser químicos, comportamentais ou estruturais. As larvas do pequeno coccinelídeo Scymnus
Pacheco, Paulo Alexandre Botelho
core  

Predatory potential of Coccinella undecimpunctata L. (Coleoptera, Coccinellidae) on Aphis craccivora Koch. (Hemiptera, Aphididae) in Ladakh, India

open access: yesENTOMON
Predatory potential of all instar larvae and adults of Coccinella undecimpunctata (Coleoptera, Coccinellidae), using Aphis craccivora Koch (Hemiptera, Aphididae) was assessed in laboratory settings. The study, conducted with varying aphid densities in rearing jars, showed a significant increase in prey consumption as aphid density rose.
Mohd Ali, Alyas Ali, Shabbir Hussain
openaire   +1 more source

Estudo preliminar dos coleópteros (Insecta, Coleoptera) da Ilha das Flores. [PDF]

open access: yes, 1990
IV Expedição Científica do Departamento de Biologia – Flores 1989.An account is given of the species of Coleoptera (Insecta, Coleoptera) collected during the "Flores 89 Scientific Expedition", in July 1989. A preliminary list of the species collected is
Borges, Paulo A. V.
core  

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