Results 61 to 70 of about 28,329 (240)

Effect of temperature on fecundity and development of the Giant Willow Aphid, Tuberolachnus salignus (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2001
This study investigates the thermal requirements, nymphal development rates and the fecundity of both alate and apterous adults of the giant willow aphid, Tuberolachnus salignus (Gmelin) at several temperatures.
C. COLLINS, Simon R. LEATHER
doaj   +1 more source

ALIEN APHIDS (HEMIPTERA: APHIDOMORPHA) OF TÜRKİYE

open access: yesTrakya University Journal of Natural Sciences, 2022
This study aims to show results of a prospective study on the relationship and the variation between the number of aphid species and the number of alien aphid species in Türkiye, the taxonomic diversity of alien aphids, their distribution in Türkiye and ...
Işıl Özdemir, Şahin Kök
doaj   +1 more source

African Aphididae

open access: yesBulletin of Entomological Research, 1914
Our knowledge of the Aphididae of Africa is as yet very limited, this important group of insects having been but little studied, except in Europe and North America. At present only thirty-five species are recorded for the whole African continent, about the number one can collect in a single afternoon in one's own garden in England.
openaire   +2 more sources

From the predator to the prey: a case study of the vulnerability of Harmonia axyridis to aggressive competitors

open access: yesInsect Science, EarlyView.
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer   +3 more
wiley   +1 more source

Metopolophium festucae cerealium (Hemiptera: Aphididae) : a new addition to the aphid fauna of North America [PDF]

open access: yes, 2013
Metopolophium festucae cerealium (Stroyan) (Hemiptera: Aphididae) was found in wheat fields in the Pacific Northwest in 2011 and 2012. This is the first record of M. f. cerealium in North America.
Eigenbrode, Sanford D.   +2 more
core   +1 more source

A two-variable approach used to distinguish between aphids (Hemiptera: Aphididae) that were reared on different varieties of cotton

open access: yesEuropean Journal of Entomology, 2015
Identifying the plants aphids have fed on can increase our understanding of their roles in food webs, and help in improving management and implementation control strategies in agricultural systems.
Yong-Sheng ZHANG   +4 more
doaj   +1 more source

Ant–aphid mutualism: the influence of Tapinoma ibericum (Hymenoptera: Formicidae) on Aphis gossypii (Hemiptera: Aphidae) control by commercial and spontaneous natural enemies

open access: yesInsect Science, EarlyView.
The mutualism between Tapinoma ibericum ants and Aphis gossypii disrupts the biological control exerted by Aphidius colemani in greenhouse peppers. Ant exclusion increased parasitism and the presence of most natural enemies, although Aphidoletes aphidimyza was more abundant with ants.
Jesús Foronda   +7 more
wiley   +1 more source

Density dependence of the alarm pheromone effect in pea aphids, Acyrthosiphon pisum (Sternorrhyncha: Aphididae)

open access: yesEuropean Journal of Entomology, 2007
The aphid alarm pheromone is known to trigger wing induction in pea aphids (Acyrthosiphon pisum). In reaction to alarm pheromone, aphids drop off the plant or walk away.
Grit KUNERT   +2 more
doaj   +1 more source

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

open access: yesInsect Science, EarlyView.
Fertilization level influences pest control effectiveness in tomato crops. High fertilization increases plant growth and aphid density but reduces the performance of the parasitoid Aphidius ervi. In contrast, the predator Adalia bipunctata maintains consistent aphid suppression regardless of fertilization regime.
Ruohan Ma   +5 more
wiley   +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   +2 more sources

Home - About - Disclaimer - Privacy