Results 121 to 130 of about 54,026 (290)

New aphid (Hemiptera: Aphidoidea) records from South Eastern Parts of Turkey [PDF]

open access: yesJournal of Insect Biodiversity and Systematics, 2017
The present study aimed to determine aphid species in South Eastern regions of Turkey. The material of this study was collected during April to October 2016.
Gazi Gorur   +4 more
doaj  

From the predator to the prey: a case study of the vulnerability of Harmonia axyridis to aggressive competitors

open access: yesInsect Science, EarlyView.
The level of aggressiveness of an individual is a factor that shapes intraguild predation (IGP) interactions. In Nabis americoferus, high aggressiveness leads to an increase in attack rate and IGP against Harmonia axyridis. Moreover, the absence of extraguild prey seems to exacerbate IGP. In docile N.
Pierre Royer   +3 more
wiley   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

open access: yesInsect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo   +3 more
wiley   +1 more source

Barley yellow dwarf epidemiology [PDF]

open access: yes, 2006
Barley yellow dwarf (BYD) disease is induced by viruses that are vectored by aphids. The viruses infect grasses and cause severe damage on oats, barley and wheat worldwide.
Bisnieks, Maris
core   +1 more source

Nutrition Rather Than Phytohormone-Dependent Defense of Host Plant Mediates the Different Response of Red- and Green-Morph Pea Aphids to Nitrogen Fertilization

open access: yesAgronomy
Nitrogen fertilization is widely known to affect plant metabolism, which subsequently influences phytophagous insects through a bottom-up effect. The interplay between plants and insects is often overlooked in studies examining the effects of nitrogen ...
Shaoting Xu   +6 more
doaj   +1 more source

Characterisation of aphid antixenosis in aphid-resistant ancestor wheat, Triticum monococcum [PDF]

open access: yes
BACKGROUND: Due to the increasing presence of insecticide resistance across cereal aphid populations, new aphid management strategies, including the engineering of host resistance to aphids into commercial wheat varieties, are required.
Birkett, M. A.   +5 more
core   +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

open access: yesInsect 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   +7 more
wiley   +1 more source

AgoArmet and AgoC002: key effector proteins in cotton aphids host adaptation

open access: yesFrontiers in Plant Science
Aphids are insects that feed on phloem and introduce effector proteins into plant cells through saliva. These effector proteins are key in regulating host plant defense and enhancing aphid host adaptation.
Hui Xue   +15 more
doaj   +1 more source

Reduced fertilization regimes could boost biocontrol service without reducing crop yield

open access: yesInsect 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   +5 more
wiley   +1 more source

The first record of the Asian elm aphid Tinocallis (Sappocallis) takachihoensis Higuchi, 1972 (Hemiptera: Aphididae) in the European part of Russia

open access: yesActa Biologica Sibirica
The Asian elm aphid Tinocallis (Sappocallis) takachihoensis Higuchi, 1972 (Hemiptera: Aphididae) was recorded for the first time in the European part of Russia. Adults and nymphs were observed in Donetsk and Rostov-on-Don in 2021, in Mariupol in 2023, in
Alexander I. Gubin   +3 more
doaj   +1 more source

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