Results 31 to 40 of about 716 (168)

Acceptance and suitability of Acyrthosiphon pisum and Sitobion avenae as hosts of the aphid parasitoid Aphidius ervi (Hymenoptera: Braconidae)

European Journal of Entomology, 2003
Aphidius ervi Haliday is a parasitoid of natural populations of both Acyrthosiphon pisum (Harris) on alfalfa and Sitobion avenae (Fabricius) on wheat in Chile.
Pauline DAZA-BUSTAMANTE, Eduardo FUENTES-CONTRERAS, Hermann M. NIEMEYER   +2 more
doaj   +1 more source

فون شته های (Hem.: Aphididae) منطقه سامان در استان چهارمحال و بختیاری [PDF]

تحقیقات آفات گیاهی, 2019
فون شته ­های (Hemiptera: Aphididea) شهر سامان (استان چهار­محال و بختیاری) طی سال­ های 1396 -1395 بررسی شد. نمونه ­ها به صورت مستقیم توسط یک قلم­موی ظریف و یا با ضربه زدن گیاهان روی یک سینی سفید جمع­ آوری شدند و در میکروتیوب ­های 2 میلی لیتری در الکل 75 %
فاطمه مؤمنی شهرکی, کامبیز مینایی   +1 more
doaj   +1 more source

Effect of Aphid Foraging on the Intensity of Photosynthesis and Transpiration of Selected Crop Plants in Its Early Stages of Growing

Agronomy, 2022
Plant stress caused by aphid foraging can cause a number of disturbances in its vital functions. The degree of disturbance depends on the duration of the stress factor and its intensity.
Mariusz Nietupski, Emilia Ludwiczak, Jacek Olszewski, Beata Gabryś, Bożena Kordan   +4 more
doaj   +1 more source

Predator niche overlap predicts effects on aphid vectors and a vector-borne virus. [PDF]

Ecol Appl
Abstract Multiple predator species can enhance or disrupt prey suppression based on whether different predators forage in complementary or overlapping niches. Interactions between predator species are primarily evaluated by resulting effects on prey abundance, although alterations of prey behavior also occur.
Lee BW, Basu S, Oeller L, Northfield TD, Crowder DW.   +4 more
europepmc   +2 more sources

Prey abundance and intraguild predation between Adalia bipunctata (Coleoptera: Coccinellidae) and Macrolophus pygmaeus (Hemiptera: Miridae)

European Journal of Entomology, 2015
Macrolophus pygmaeus Rambur (Hemiptera: Miridae) and Adalia bipunctata (L.) (Coleoptera: Coccinellidae) are two predatory insects commonly used as biological control agents.
Vincenzo TROTTA, Juliana DURÁN PRIETO, Paolo FANTI, Donatella BATTAGLIA   +3 more
doaj   +1 more source

Starvation Stress Causes Body Color Change and Pigment Degradation in Acyrthosiphon pisum

Frontiers in Physiology, 2019
The pea aphid, Acyrthosiphon pisum (Harris), shows body color shifting from red to pale under starvation in laboratory conditions. These body color changes reflect aphid’s adaptation to environmental stress. To understand the color-shifting patterns, the
Xing-Xing Wang, Xing-Xing Wang, Zhan-Sheng Chen, Zhu-Jun Feng, Jing-Yun Zhu, Yi Zhang, Tong-Xian Liu   +6 more
doaj   +1 more source

The Influence of Lead on Generation of Signalling Molecules and Accumulation of Flavonoids in Pea Seedlings in Response to Pea Aphid Infestation

Molecules, 2017
The aim of this study was to investigate the effect of an abiotic factor, i.e., lead at various concentrations (low causing a hormesis effect and causing high toxicity effects), on the generation of signalling molecules in pea (Pisum sativum L.
Agnieszka Woźniak, Kinga Drzewiecka, Jacek Kęsy, Łukasz Marczak, Dorota Narożna, Marcin Grobela, Rafał Motała, Jan Bocianowski, Iwona Morkunas   +8 more
doaj   +1 more source

Ecological Studies on Aphid Species Infesting Different Leguminous Vegetable Plant Varieties with Regard to their Seasonal Abundance. [PDF]

Journal of Plant Protection and Pathology, 2016
The present work was conducted to survey and study the seasonal abundance of different aphid insects infesting some leguminous plants varieties (broad bean, pea, cowpea and bean plants) in Diarb–Nigm district, Sharkia Governorate, Egypt during 2014/15 ...
E. EL- Khyatt, H. EL-Kady, Hagar Awadalla, M. Hegab   +3 more
doaj   +1 more source

Suitability of NDVI index to pea condition evaluation at diverse phosphorus fertilization

Italian Journal of Agronomy, 2020
In this 3-year study the suitability of the normalized differenced vegetation index (NDVI) to the evaluation of pea plant infestation by aphids and expected seeds yield was investigated.
Janina Gospodarek, Agnieszka Klimek-Kopyra, Milena Rusin   +2 more
doaj   +1 more source

To feed or not to feed: plant factors located in the epidermis, mesophyll, and sieve elements influence pea aphid's ability to feed on legume species. [PDF]

PLoS ONE, 2013
The pea aphid (Acyrthosiphon pisum Harris), a legume specialist, encompasses at least 11 genetically distinct sympatric host races. Each host race shows a preference for a certain legume species.
Alexander Schwarzkopf, Daniel Rosenberger, Martin Niebergall, Jonathan Gershenzon, Grit Kunert   +4 more
doaj   +1 more source