Results 21 to 30 of about 49,979 (285)

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

Russian wheat aphids (Diuraphis noxia) in China: Native range expansion or recent introduction? [PDF]

open access: yes, 2012
In this study, we explore the population genetics of the Russian wheat aphid (RWA) (Diuraphis noxia), one of the world’s most invasive agricultural pests, in north-western China.
Abbot   +85 more
core   +3 more sources

Differences in microbiota between two multilocus lineages of the sugarcane Aphid (Melanaphis sacchari) in the continental United States [PDF]

open access: yes, 2020
The sugarcane aphid (SCA), Melanaphis Sacchari (Zehntner) (Hemiptera: Aphididae), has been considered an invasive pest of sugarcane in the continental United States since 1977. Then, in 2013, SCA abruptly became a serious pest of U.S.
Antwi, Josephine B.   +11 more
core   +1 more source

Using the loess method to describe the effect of temperature on development rate

open access: yesPlant Protection Science, 2017
Temperature has a significant influence on development rates of insects and mites. Many parametric models were built to describe the temperature-dependent development rates.
Junhe Liu   +6 more
doaj   +1 more source

First Record of \u3ci\u3eAphis Helianthi\u3c/i\u3e (Homoptera: Aphididae) as a Pest of Celery [PDF]

open access: yes, 2017
In 1989, the aphid Aphis helianthi severely damaged five of 10 scouted celery fields in west central Michigan. In 1990 and in 1991, A. helianthi again was a problem. reaching pestiferous levels in three of 10 and two of 10 scouted fields.
Davis, M. G. Kortier, Grafius, E.
core   +2 more sources

Influence of different species of aphid prey on the immature survival and development of four species of aphidophagous coccinellids (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2015
This study was on the effect of three species of aphids (Aphis fabae, Macrosiphoniella sanborni, Brevicoryne brassicae) on the survival, growth and development of the immature stages of the aphidophagous coccinellids Coccinella septempunctata ...
Dimitrios P. PAPACHRISTOS   +3 more
doaj   +1 more source

Indian Bt cotton varieties do not affect the performance of cotton aphids. [PDF]

open access: yes, 2008
Cotton varieties expressing Cry proteins derived from the soil bacterium Bacillus thuringiensis (Bt) are grown worldwide for the management of pest Lepidoptera.
Lawo, N. C.   +2 more
core   +7 more sources

Respiratory metabolism of the pea aphid, Acyrthosiphon pisum (Hemiptera: Aphididae)

open access: yesEuropean Journal of Entomology, 2012
The respiratory metabolism of different polyphenic forms of the pea aphid, including wingless and winged asexual females (virginoparae), sexual females (oviparae) and winged or wingless adult males, was investigated using a micro-respirographic method ...
Karel SLÁMA, Pavel JEDLIČKA
doaj   +1 more source

A New Species of \u3ci\u3eAphis\u3c/i\u3e in Minnesota (Hemiptera: Aphididae) on Narrow-Leaved Purple Coneflower, \u3ci\u3eEchinacea Angustifolia\u3c/i\u3e [PDF]

open access: yes, 2018
Aphis echinaceae, n. sp. is described from specimens collected in Douglas County, Minnesota, on Echinacea angustifolia (DC.). The aphid is illustrated with biometric data for alate and apterous vivipara.
Lagos, D. M, Voegtlin, D. J
core   +2 more sources

The effect of choice and no-choice access on host (Aphis fabae) instars preference, in different ages and sizes of Lysiphlebus fabarum (Hymenoptera: Braconidae: Aphidiinae) [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2016
The influence of parasitoids on population dynamics is affected by host instar preference. The preference pattern of host instars is not fixed and is modified by the availability and relative abundance of host instars, intensity of defensive behaviors in
P. Najafpour, A. Rasekh, M. Esfandiyari
doaj  

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