Results 41 to 50 of about 161,625 (396)

Developing Plantain for Resistance to Banana Aphids by RNA Interference

open access: yesProceedings, 2020
Banana bunchy top virus (BBTV) is one of the world’s invasive species. Banana aphid (Pentalonia nigronervosa) is found in all banana producing areas and it is the insect pest known to transmit BBTV causing banana bunchy top disease (BBTD) in ...
Temitope Jekayinoluwa   +5 more
doaj   +1 more source

APHID EXCRETION

open access: yesProceedings of the Royal Entomological Society of London. Series A, General Entomology, 1951
RESP ...
openaire   +1 more source

Parasitoids (Hymenoptera: Braconidae, Aphidiinae) of the mealy plum aphid Hyalopterus pruni (Geoffr.) on common reed (Phragmites australis) in different types of habitat in Poland [PDF]

open access: yesArchives of Biological Sciences, 2013
The aim of the present work was to determine the parasitoid guild of the mealy plum aphid Hyalopterus pruni on common reed (Phragmites australis) in different types of habitats in central Poland.
Barczak T.   +2 more
doaj   +1 more source

Diagnosis of intrapopulation adaptation genesis of bird cherry aphid Rhopalosiphum padi (L.) under nutrition conditions on various spring common wheat varieties

open access: yesЗерновое хозяйство России, 2023
The widespread cultivation of highly productive varieties of agricultural crops often leads to the emergence and spread of new intraspecific forms of insects capable of mass reproduction.
A. B. Vereshchagina, E. S. Gandrabur
doaj   +1 more source

Ecological Observations on Predatory Coccinellidae (Coleoptera) in Southwestern Michigan [PDF]

open access: yes, 2017
Ecological observations on habitat utilization by thirteen species of predatory Coccinellidae were made at a southern Michigan site during 1989 and 1990. Most of species were common during both years and used both agricul- tural and uncultivated habitats.
Gage, S. H   +3 more
core   +2 more sources

Infestations and distribution of Rhopalosiphum padi (L.) on different varieties of barley and oats, effect of nitrogen fertilization and chemical control

open access: yesAgricultural and Food Science, 1990
Infestations of Rhopalosiphum padi were compared between common varieties grown at nitrogen levels of 50, 100 and 150 kg/ha in 1986 and 1988, and controlled with dimethoate in 1988.
Sirpa Kurppa, Marja Suonpää
doaj   +2 more sources

Discovery, Identification, and Insecticidal Activity of an Aspergillus flavus Strain Isolated from a Saline–Alkali Soil Sample

open access: yesMicroorganisms, 2023
Aphids are one of the most destructive pests in agricultural production. In addition, aphids are able to easily develop resistance to chemical insecticides due to their rapid reproduction and short generation periods.
Yuxin Song   +9 more
doaj   +1 more source

Abundance of Cereal Aphids (Homoptera: Aphididae) and Their Predators in Spring Wheat-Alfalfa Intercrops Under Different Crop Management Intensities [PDF]

open access: yes, 2018
Natural infestations of cereal aphids and abundance of their predators were compared from 1990 through 1993 among plots of intercropped spring wheat and alfalfa grown under high, intermediate, or low crop management intensity (CMI).
Evenson, Paul D   +2 more
core   +2 more sources

Bacterial Communities Associated with Host-Adapted Populations of Pea Aphids Revealed by Deep Sequencing of 16S Ribosomal DNA

open access: yesPLoS ONE, 2015
Associations between microbes and animals are ubiquitous and hosts may benefit from harbouring microbial communities through improved resource exploitation or resistance to environmental stress.
J. Gauthier   +3 more
semanticscholar   +1 more source

Why we age

open access: yesBiological Reviews, EarlyView.
ABSTRACT Three categories of explanations exist for why we age: mechanistic theories, which omit reference to evolutionary forces; weakening force of selection theories, which posit that barriers exist that prevent evolutionary forces from optimising fitness in ageing; and optimisation theories, which posit that evolutionary forces actually select for ...
Michael S. Ringel
wiley   +1 more source

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