Results 21 to 30 of about 703 (185)

Comparison of the epidemiology of Metopolophium dirhodum and Sitobion avenae on winter wheat

Netherlands Journal of Plant Pathology, 1981
The epidemiology ofMetopolophium dirhodum and its natural enemies on winter wheat was studied from 1975 to 1979 inclusive. AlateM. dirhodum colonize wheat from the middle of May onwards. Immigration occurs until mid-June. Population growth rates ofM. dirhodum can be as high as or occasionally even higher than those ofSitobion avenae. InM.
Ankersmit, G.W., Carter, N.
openaire   +2 more sources

Identifying aphid resistance in the ancestral wheat Triticum monococcum under field conditions [PDF]

Scientific Reports, 2021
Wheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission.
Amma L. Simon, John C. Caulfield, Kim E. Hammond-Kosack, Linda M. Field, Gudbjorg I. Aradottir   +4 more
doaj   +2 more sources

Pathogenicity of the fungus Lecanicillium longisporum against Sipha maydis and Metopolophium dirhodum in laboratory conditions

Journal of Plant Protection Research, 2014
Abstract This study aimed to evaluate the susceptibility of two cereal aphids, Sipha maydis (Passerini) and Metopolophium dirhodum (Walker), to the entomopathogenic fungus, Lecanicillium longisporum (Zimm.) Zare and Gams strain LRC 190, under controlled conditions. The conidial suspension of the fungus was administered using a sprayer on the whole
Safoora Fadayivata, Gholamhossein Moravvej, Javad Karimi   +2 more
openaire   +2 more sources

Pathogenicity of three entomopathogenic fungi, to the aphid species, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), and their Alkaline protease activities

Egyptian Journal of Biological Pest Control, 2018
The aim of the present study is to investigate the effect of three entomopathogenic fungi (EPF) (Beauveria bassiana, Cladosporium cladosporioides, and Verticillium alfalfae) on the aphid species, Metopolophium dirhodum (Walker) (Hemiptera: Aphididae ...
Ouidad Abdelaziz, Mohamed Mourad Senoussi, Amar Oufroukh, Ali Kemal Birgücü, İsmail Karaca, Fayza Kouadri, Benkenana Naima, Abderrahmane Bensegueni   +7 more
doaj   +2 more sources

Observations on the morphs of Macrosiphum avenae and Metopolophium dirhodum on cereals during the summer and autumn

Annals of Applied Biology, 1978
SUMMARYFrom June to early August 1970, populations of Macrosiphum avenae and Metopolophium dirhodum on marked tillers of field barley were compared with the numbers of alatae trapped at crop height and at 12.2 m. There were always more M. dirhodum than M. avenae on the tillers.
Dean, G. J.
openaire   +2 more sources

Defensive Symbiont Genotype Distributions Are Linked to Parasitoid Attack Networks. [PDF]

Ecol Lett
Facultative symbionts are widespread in arthropods and can provide important services such as protection from natural enemies. Yet what shapes defensive symbiont associations in nature remains unclear. We show that the symbiont Hamiltonella defensa's genotype distribution strongly aligns with sharing the same parasitoids, rather than host plants ...
Wu T, Rodrigues AA, Fayle TM, Henry LM.
europepmc   +2 more sources

Using deep learning to assess the toxicological effects of sublethal exposure of a novel green pesticide in a stored-product beetle. [PDF]

Pest Manag Sci
This study employs an AI‐driven multidisciplinary approach to increase our understanding of the toxicological effects of sublethal concentrations of carlina oxide on Prostephanus truncatus. Sublethal exposure to the carlina oxide induced changes in motor patterns and thigmotaxis, highlighting its potential role in integrated pest management strategies.
Casadei A, Boukouvala MC, Manduca G, Kavallieratos NG, Maggi F, Ferrati M, Spinozzi E, Stefanini C, DeSimone A, Romano D.   +9 more
europepmc   +2 more sources

Divergence in Coding Sequences and Expression Patterns Among the Functional Categories of Secretory Genes Between Two Aphid Species [PDF]

Biology
Disparities in the functional classification of secretory genes among aphid taxa may be attributed to variations in coding sequences and gene expression profiles. However, the driving factors that regulate sequence evolution remain unclear.
Atsbha Gebreslasie Gebrekidan, Yong Zhang, Julian Chen   +2 more
doaj   +2 more sources

Aerial migrations of the rose‐grain aphid, Metopolophium dirhodum (Wlk.), over Europe in 1979

Plant Pathology, 1980
SUMMARY Aerial migrations of Metopolophium dirhodum over Europe in 1979 measured by suction traps at a height of 12.2 m indicated that alates flew first in the south of France where the warm climate probably encouraged early population increase.
Dewar, A. M., Woiwod, I. P., Dejanvry, E. C.   +2 more
openaire   +2 more sources

Antibiosis to Metopolophium dirhodum (Homoptera: Aphididae) in Spring Wheat and Emmer Cultivars. [PDF]

J Econ Entomol, 2020
Abstract Yield losses caused by pests, including aphids, can be substantial in cereals. Breeding for resistance against aphids is therefore desirable for enhancing the economic and environmental sustainability of cereal production.
Platková H, Skuhrovec J, Saska P.
europepmc   +4 more sources