Results 111 to 120 of about 31,208 (268)

Two New Genera and Species of Aphididae. [PDF]

open access: yesAnnals of the Entomological Society of America, 1909
In his “Catalogue des Aphides de Belgique,”* Dr. H. Schouteden remarks that he has examined specimens of Drepanosiphum acerifolii Thomas, and concludes “qu’il, s’agit d’un Aphide bien different de nos Drepanosiphum et qui constituera le type d’un genre nouveau; la structure des cornicles n’est nullement celle du genre qui nous occupe.” For some time I ...
openaire   +3 more sources

Effects of diet on development and reproductive fitness of two predatory coccinellids (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2015
Studies of prey suitability are needed to develop efficient mass rearing programs for generalist predators and to understand their potential contribution to integrated pest management.
Mohammad A. MIRHOSSEINI   +2 more
doaj   +1 more source

Evaluation of the susceptibility of the pea aphid, Acyrthosiphon pisum, to a selection of novel biorational insecticides using an artificial diet [PDF]

open access: yes, 2009
An improved technique was developed to assay the toxicity of insecticides against aphids using an artificial diet. The susceptibility of the pea aphid Acyrthosiphon pisum (Harris) (Hemiptera: Aphidoidea) was determined for a selection of novel ...
Sadeghi, Amin   +2 more
core   +3 more sources

the aphididae homoptera species of kastamonu region

open access: yesTurkish Journal of Forestry, 2005
In this study, in order to identify the species of Aphids which can be seen in the park, garden and forest trees of Kastamonu region. During the study, parts of the forest trees having the symptoms of aphids like Willow, Cedar, Poplar, Maple, Black pine, Scots pine, Linden, Walnut, Ash, Locust, Gallnut and Cypress have been examined and the found ...
ÜNAL, Sabri, ÖZCAN, Ercan
openaire   +3 more sources

The degree of protection different ants (Hymenoptera: Formicidae) provide aphids (Hemiptera: Aphididae) against aphidophages

open access: yesEuropean Journal of Entomology, 2012
Aphids play an important role in the life of many ant species supplying them with energy-rich carbohydrate food and in exchange receiving some degree of protection from natural enemies.
Tatiana A. NOVGORODOVA   +1 more
doaj   +1 more source

The influence of plant fertilisation regime on plant-aphid-parasitoid interactions [PDF]

open access: yes, 2003
This thesis examines effects of plant fertilisation regime on herbivore and parasitoid performance for two aphids, Macrosiphum euphorbiae and Myzus persicae, and one parasitoid wasp, Aphidius ervi. Herbivore performance was measured as adult fresh weight
Jansson, Johanna
core  

Myzocallis walshii (Hemiptera: Sternorrhyncha: Aphididae), an exotic invasive aphid on Quercus rubra, the American red oak: Its bionomy in the Czech Republic

open access: yesEuropean Journal of Entomology, 2007
Myzocallis (Lineomyzocallis) walshii (Monell), a North American aphid species associated with Quercus rubra was detected for the first time in Europe in 1988 (France), and subsequently in several other countries - Switzerland, Spain, Andorra, Italy ...
Jan HAVELKA, Petr STARÝ
doaj   +1 more source

Complete mitochondrial genome of the spotted alfalfa aphid, Therioaphis trifolii (Hemipera: Aphididae)

open access: yesMitochondrial DNA. Part B. Resources, 2019
The complete mitochondrial genome (mitogenome) of Therioaphis trifolii is sequenced and annotated based on high-throughput sequencing method in the present study.
Xinzhi Liu   +5 more
doaj   +1 more source

Praon volucre (Hymenoptera: Braconidae: Aphidiinae), a natural enemy of Macrosiphum euphorbiae (Hemiptera: Aphididae): Life table and intrinsic rate of population increase

open access: yesEuropean Journal of Entomology, 2011
Life table data of natural enemies are often used to understand their population dynamics and estimate their potential role in the biological control of pests.
Juracy Caldeira LINS   +4 more
doaj   +1 more source

New species of Aphididae

open access: yes, 1950
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

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