Results 71 to 80 of about 2,821 (237)

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

Efficiency of biological insecticides against the main pests of winter wheat in the system of organic farming

Карантин і захист рослин, 2023
Goal. To investigate the pest infestation of soft winter wheat (Triticum aestivum L.) crops and to determine the technological effectiveness of biological products against them in the system of organic farming. Methods.
S. Zaiets, A. Kovalenko, L. Onufran, S. Yuzyuk, K. Fundirat   +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

Insect 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, Estefanía Rodríguez, Mónica González, María del Mar Téllez, Carmen Robles‐Vallet, Pablo Barranco, Felipe Pascual, Francisca Ruano   +7 more
wiley   +1 more source

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

Insect 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, Maceo Valente, Roger Boll, Peng Han, Nicolas Desneux, Anne‐Violette Lavoir   +5 more
wiley   +1 more source

Report of Coccinella magnopunctata (Col.: Coccinellidae) from Iran [PDF]

نامه انجمن حشره‌شناسی ایران, 2011
In a faunistic survey of aphids and their aphidophagous predators in cereal fields of Mashhad and vicinity, during 2006-2008, several coccinellid species were collected and determined.
S. Farahi, H. Sadeghi Namaghi
doaj  

Distribution and diversity of wheat aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) in Iran

European Journal of Entomology, 2008
Eleven species of parasitoids were found to attack 7 species of wheat aphids in Iran. The Simpson's Index of diversity (D) used to compare the aphidiine diversity in various cereal crop systems in geographically different regions of Iran ranged from 0 ...
Ehsan RAKHSHANI, Željko TOMANOVIĆ, Petr STARÝ, Ali-Asghar TALEBI, Nickolas G. KAVALLIERATOS, Abbas-Ali ZAMANI, Srdjan STAMENKOVIĆ   +6 more
doaj   +1 more source

Transmission of potato virus Y by cereal aphids

Potato Research, 1985
The cereal aphidRhopalosiphum padi transmitted PVYO and PVYN from and to both tobacco and potato. However, it transmitted much less frequently thanMyzus persicae, even when aphids making single probes were compared.R. padi andM. persicae retained PVY for a similar duration. Both alatae and apterae ofR.
Katis, N., Gibson, R. W.
openaire   +1 more source

The effect of barley yellow dwarf virus on field populations of the cereal aphids, Sitobion avenae and Metopolophium dirhodum

, 1983
The numbers of cereal aphids, especially Metopolophium dirhodum in 1979, and Sitobion avenae in 1980, were significantly increased on BYDV infected wheat and oats in 1979, and wheat, barley and oats in 1980.
Dewar, A. M., Ajayi, O., BY OLUPOMI AJAYI, A. M. DEWAR   +3 more
core   +1 more source

Annual flower strips under the ‘Sweden Blossom’ initiative – how do they perform for pollinators, natural enemies and herbivores?

Agricultural and Forest Entomology, EarlyView.
Pollinator‐targeted annual flower strips increase abundances of pollinators but also natural enemies and herbivores. Natural enemies and herbivores disperse in a taxon‐specific manner into nearby crops. Pest control by ground‐dwellers slightly increases in crop areas near the flower strips.
Neus Rodríguez‐Gasol, Ola Lundin, Elodie Chapurlat, Mattias Hammarstedt, Mattias Jonsson, Johan A. Stenberg, Maria Viketoft   +6 more
wiley   +1 more source

Two Aquaporins Mitigate Growth-Defence Trade-Offs by Facilitating CO₂ and H₂O₂ Transport in Wheat. [PDF]

Plant Biotechnol J
ABSTRACT The growth‐defence trade‐offs pose a major challenge to breeding high‐yield and disease‐resistant crops. Aquaporins are membrane channels that facilitate the transport of water and other small compounds, therefore regulating the growth‐defence trade‐offs.
Lu K, Qi S, Qian H, Fu X, An Z, Chen X, Zhang L, Zou S, Chen L, Dong H.   +9 more
europepmc   +2 more sources