Results 71 to 80 of about 43,020 (198)

First record of Takecallis taiwana (Takahashi) and T. arundinariae (Essig) (Hemiptera: Aphididae) in Colombia

open access: yesAgronomía Colombiana, 2016
The aphids Takecallis taiwana (Takahashi, 1926) and T. arundinariae (Essig, 1917) were collected from two locations in the Department of Cundinamarca (Colombia) and one location within 90 km of the city of Bogota on plants of the Phyllostachys sp ...
Ronald Simbaqueba   +2 more
doaj   +1 more source

Extracted features from opto-acoustic audio recordings of aphids and beetles

open access: yes, 2020
Opto-acoustic recorders have been utilised to record the flight of weak-flying insects including aphids (Hemiptera: Aphididae) and beetles (Coleoptera).
Bell, J. R., Dye, A., Hassall, K. L.
core   +1 more source

Infestation of Aphids in Tomato Plantations After Application of Tobacco Leaves Mixtures With Other Botanical Insecticides

open access: yesJERAMI
Pest attacks are still a major problem in tomato cultivation. Aphids are one of the main pests of tomatoes. The main symptoms of aphids on tomatoes are stunted plants, distorting leaves and stems, and causing necrotic spots.
Betari Safitri   +3 more
doaj   +1 more source

Capacity of earwig Marava arachidis (Yersin) to access fennel plants Foeniculum vulgare Mill in laboratory and field Capacidade da tesourinha Marava arachidis (Yersin) em acessar a planta de erva-doce Foeniculum vulgare Mill no laboratório e no campo

open access: yesCiência Rural, 2007
This research was aimed at obtaining data about earwig behavior (Marava arachidis Y.) on fennel agro-ecosystems and evaluating its potential capacity to access plants in the absence of aphids under laboratory and field conditions.
Charles Ira Abramson   +3 more
doaj   +1 more source

Fortifying crop defenses: unraveling the molecular arsenal against aphids

open access: yesHorticulture Advances
Aphids cause enormous financial losses to various crop plants on a global scale. Moreover, aphids are vectors for many plant viral diseases that can further hasten crop yield losses.
Xiaodong Yang   +12 more
doaj   +1 more source

Aphid Genomics and its contribution to understanding aphids as crop pests

open access: yes, 2017
This chapter considers some examples of how aphid genomes have contributed to understanding aphids as crop pests. It aims to give a very broad overview of areas where genomics has contributed to understanding aspects of aphid biology, ecology, behaviour ...
Field, L. M.   +9 more
core   +1 more source

Was Dan Janzen (1977) right about aphid clones being a "super-organism", i.e. a single "evolutionary individual"? : new insights from the use of molecular marker systems [PDF]

open access: yes, 2008
Dan Janzen proposed in a paper in 1977 (loc. cit.), that a clone of aphids and for that matter dandelions consists, respectively, of one large ‘super-organism’.
Loxdale, H. D.   +2 more
core  

Wild potato repels aphids by release of aphid alarm pheromone

open access: yes, 1983
We report here that the aphid Myzus persicae (Sulzer) is repelled, at a distance of 1–3 mm, from leaves of the wild potato Solatium berthaultii Hawkes. In addition, air from above the foliage induces rapid dispersal of settled aphid colonies, behaviour ...
J. A. Pickett   +5 more
core   +1 more source

Influence of Previous Infestation of Wheat Leaves and Ears by Sitobion avenae on Interaction with Rhopalosiphum padi

open access: yesInsects
Different herbivorous species that share a host plant may interact via competition or facilitation, depending on whether the interaction partners are hindered by or benefit from the interaction.
Andreas Bühler, Rabea Schweiger
doaj   +1 more source

Endoparasitism in cereal aphids : molecular analysis of a whole parasitoid community

open access: yes, 2008
Insect parasitoids play a major role in terrestrial food webs as they are highly diverse, exploit a wide range of niches and are capable of affecting host population dynamics.
I. M. G. VOLLHARDT   +24 more
core   +1 more source

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