Results 41 to 50 of about 1,190 (202)

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

open access: yesتحقیقات 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   +1 more
doaj   +1 more source

Repellent Effect of Basil (Ocimum spp) on Pea Aphid (Acyrthosiphon pisum Harris) and Potential Use in Crops [PDF]

open access: yes, 2021
Synthetic insecticides used for aphid control continue to be a threat to humans and the environment. Therefore, in order to reduce these problems, it is important to use less harmful, environmentally friendly agricultural practices.
Frédéric Francis   +9 more
core   +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

open access: yesMolecules, 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   +8 more
doaj   +1 more source

Population parameters, wing production and behaviour in red and green Acyrthosiphon Pisum (Harris) (Homoptera: Aphididae)

open access: yes, 1964
A red strain of A. pisum produced more alatae, was more fecund, and reproduced more rapidly but did not live as long as a green strain; it was also disturbed more easily, responding only to moist, not dry, currents of air, and it was less active in ...
Taylor, L. R.   +3 more
core   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

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

open access: yesItalian 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   +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]

open access: yesPLoS 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   +4 more
doaj   +1 more source

A sex-linked locus controls wing polymorphism in males of the pea aphid, Acyrthosiphon pisum (Harris) [PDF]

open access: yesHeredity, 2002
Discrete variation in wing morphology is a very common phenomenon in insects and has been used extensively in the past 50 years as a model to study the ecology and evolution of dispersal. Wing morph determination can be purely genetic, purely environmental, or some combination of the two. The precise genetic determinants of genetically based wing morph
Caillaud, M. C.   +3 more
openaire   +2 more sources

Insects and Survival: A Review of Primary and Secondary Defense Strategies

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 7, Page 601-624, July 2026.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva   +3 more
wiley   +1 more source

Bacteriophages in the Rhizosphere: Roles in Nutrient Cycling, Bacterial Community Structure, and Animal‐Mediated Dispersal

open access: yesMicrobiologyOpen, Volume 15, Issue 3, June 2026.
This review discusses bacteriophages' roles in soil ecosystems, highlighting their impact on nutrient cycling, plant health, and soil remediation, as well as animal‐mediated phage dispersal mechanisms. Overall, while bacteriophages have potential biotechnological applications, their negative effects on microbial functions and nutrient cycling highlight
Majid Komijani   +4 more
wiley   +1 more source

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