搜索结果: 1-15 共查到“aphid”相关记录21条 . 查询时间(0.089 秒)
Woolly ash aphid – is the alien bug posing a threat to European ash trees? – a review
Aphidoidea biocapacity climate changes invasiveness forecast species acclimatization zoogeography
2017/6/26
Prociphilus (Meliarhizophagus) fraxinifolii (Riley, 1879) (Hemiptera: Eriosomatidae) is an alien species in Europe that has been spreading quickly there. This paper presents the origin and current occ...
Length of prematurity period in wheat cultivars determines maximum cereal aphid abundance
flowering time Metopolophium dirhodum population Rhopalosiphum padi Sitobion avenae spring wheat
2016/9/2
Maximum aphid numbers on wheat are positively related to the length of the period elapsed from immigration to the population peak. We predicted that maximum abundances on late maturing cultivars would...
New resistance sources to Russian wheat aphid (Diuraphis noxia) in Swedish wheat substitution and translocation lines with rye (Secale cereale) and Leymus mollis
alien introgressions aphid resistance Dnr genes Triticum aestivum 1R
2015/12/29
Russian wheat aphid is an important pest in many wheat growing countries of the world. Different resistance genes to the pest have previously been identified. However, some biotypes of the pest are vi...
Preying Capacity of Different Established Predators of the Aphid Lipaphis erysimi (Kalt.) Infesting Rapeseed-Mustard Crop in Laboratory Conditions
preying efficiency coccinellid larvae syrphid larvae
2015/3/10
Experiments on the preying capability of different stages of larvae of coccinellid and syrphid flies on the mustard
aphid, Lipaphis erysimi (Kalt.), were conducted in a laboratory during the winter ...
Insecticidal Activity of Chitosans of Different Molecular Weights and Chitosan-metal Complexes against Cotton Leafworm Spodoptera littoralis and Oleander Aphid Aphis nerii
arthropod pests larval mortality biopolymer
2015/3/9
As an alternative to synthetic pesticides, chitosan has received much attention as a biopolymer active against
some agricultural pests. The, insecticidal activity of chitosans of four molecular weig...
Fecundity and Development Rate of the Bird Cherry-oat Aphid, Rhopalosiphum padi (L) (Hom.: Aphididae) on Six Wheat Cultivars
Rhopalosiphum padi wheat cultivars biological parameters
2015/3/5
Rhopalosiphum padi is a polyphagous species with a nearly worldwide distribution. Biological parameters of this
aphid on six commonly grown wheat cultivars in the Fars province including Chamran, Da...
Elevated CO2 decreases the response of the ethylene signaling pathway in Medicago truncatula and increases the abundance of the pea aphid
Acyrthosiphon pisum (pea aphid) elevated CO2 ethylene Medicago truncatula nitrogen (N) metabolism resistance
2015/2/5
The performance of herbivorous insects is greatly affected by plant nutritional quality and resistance, which are likely to be altered by rising concentrations of atmospheric CO2.We previously repor...
Comparison of Field Population Growths of Three Cereal Aphid Species on Winter Wheat
Metopolophium dirhodum Rhopalosiphum padi Sitobion avenae population dynamic pest monitoring winter wheat
2015/1/30
Population growths of three aphid species colonising winter wheat stands, Metopolophium dirhodum, Rhopalosiphum padi and Sitobion avenae, were analysed by regression method. The calculations were base...
Biochemical Characterisation of α-Amylase in Two Aphid Species, Aphis fabae Scopoli (Hemiptera: Aphididae) and A. gossypii Glover (Hemiptera: Aphididae)
aphids gel assay starch
2015/3/11
We identify and characterise α-amylases of the two aphid species, A. fabae and A. gossypi. To do this, α-amylases of
the two insect species were extracted and their activities were determined using ...
APHID DYNAMICS IN WHEAT AS AFFECTED BY WEATHER AND CROP PLANTING TIME
Triticum aestivum Sitobion,Schizaphis Rhopolosiphum population densities climate sowing time Pakistan
2009/9/29
A study was conducted at Wheat Research Institute, AARI, Faisalabad, Pakistan
during 2004-05 and 2005-06 to understand dynamics of aphid infestation as affected
by weather and wheat sowing time. Dai...
STUDY OF OCCURRENCE AND HARMFULNESS OF BEAN APHID（Aphis fabae complex）INFESTING SOSNOWSKI’S HOGWEED（Heracleum sosnowskyi Manden）
Heracleum sosnowskyi Manden Sosnowski’s hogweed Aphis fabae complex
2009/3/31
Over 1999-2002 a research was carried out in the region of Bydgoszcz, at Minikowo, Mochełek and Topolno, on the dynamics of the occurrence and harmfulness of bean aphid (Aphis fabae complex) on ...
EFFECT OF AZADIRACHTIN ON POTATO VIRUS YN RETENTION IN GREEN PEACH APHID Myzus persicae (Sulz.)
Myzus persicae PVYN retention azadirachtin
2009/3/30
In laboratory studies there was observed no positive effect of azadirachtin on PVYN retention in Myzus persicae (Sulz.) which, having contracted the pathogen, were starved and next they were feeding ...
Influence of Spraying and Adapted Fertilization on Reproductive Potential and Formation of Dispersing Morphs in Mustard Aphid, Lipaphis erysimi（Kalt）
Mustard Aphid Alatoid Alate Embryo
2009/3/12
1. The study was carried out to find out the influence of adapted fertilization and insecticide application on reproductive potential and formation of dispersing morphs of mustard aphid, Lipaphis erys...
Insecticidal Activities of the Enantiomers of Asymmetric 1-[1-(6-Chloro-3-pyridyl)ethyl]-2-nitroiminoimidazolidine against American Cockroach, Cucurbit Leaf Beetle, Green Rice Leafhopper and Green Peach Aphid Following Injection, Dipping and Spraying
American cockroach asymmetric chloronicotinyl insecticide enantioselectivity imidacloprid
2009/3/6
The title compound Me-IMI has been reported to show enantioselectivity in terms of binding affinity and nerve blocking activity in vitro. Here we examined the behavior of the optical isomers in vivo...
Functional Response of Two Coccinellid Predators, Scymnus levaillanti and Cycloneda sanguinea, to the Cotton Aphid, Aphis gossypii
Coccinellid Scymnus levaillanti Cycloneda sanguinea functional response aphid density handling time attack constant
2009/1/12
Functional responses of 2 female coccinellid predators, Scymnus levaillanti and Cycloneda sanguinea, to the cotton aphid, Aphis gossypii, at various temperatures were studied under laboratory conditi...