Results 101 to 110 of about 78,391 (332)

Parasitoids of \u3ci\u3eChionaspis Pinifoliae\u3c/i\u3e (Homoptera: Diaspididae) in Iowa [PDF]

open access: yes, 2017
Three parasitoids (Hymenoptera: Encyrtidae: Aphelininae), Aphytis diaspidis, Coccobius varicornis, and Marietta pulchella, were recovered from field collections of the pine needle scale, Chionaspis pinifoliae, on Pinus sylvestris in central Iowa ...
Burden, Daniel J, Hart, Elwood R
core   +2 more sources

Field size as a determinant of common vole population density

open access: yesPest Management Science, EarlyView.
Population densities of the common vole, an agricultural pest, increase nonlinearly with forage field size, especially in fields below 20 ha. Reducing the field size may help limit crop damage in farmland. Abstract BACKGROUND Environmental heterogeneity in agricultural landscapes is a key driver of biodiversity and ecological processes, yet its role in
Emil Tkadlec   +7 more
wiley   +1 more source

A Review of Nesting Behavior in the Genus Entomognathus, With Notes on E. Memorialis Banks (Hymenoptera: Sphecidae)

open access: yesPsyche: A Journal of Entomology, 1972
The genus Entomognathus contains at least 4o species, half in the Ethiopian and in the Palaearctic, Nearctic, Oriental, and Neotropical regions (Leclercq, 1954, 1955, 1961, 1963; Nouvel and Ribaut, 1956; Krombein, 1963).
Richard C. Miller, Frank E. Kurczewski
doaj   +1 more source

Occurrence of greedy scale, Hemiberlesia rapax (Comstock) (Hemiptera: Diaspididae), on mahogany in Brazil

open access: yesPesquisa Agropecuária Gaúcha, 2020
The Brazilian mahogany (Swietenia macrophylla King, Meliaceae) is an important forest species known worldwide for the high commercial value of its wood. Few arthropods have been observed associated with mahogany.
Marcelo Tavares de Castro   +3 more
doaj   +1 more source

Observations on North Dakota Sponges (Haplosclerina: Spongillidae) and Sisyrids (Neuroptera: Sisyridae) [PDF]

open access: yes, 2017
Factors influencing occurrence, distribution, and ecology of sponges and sisyrids are discussed, with emphasis on northeastern North Dakota. New state records for North Dakota sponges, Eunapius Jraguis Leidy and Ephydatia fluviatilis L. and the sisyrids,
Neel, Joe K   +2 more
core   +2 more sources

Ozonated irrigation in vineyards: limited effects on soil bacterial and fungal microbiota

open access: yesPest Management Science, EarlyView.
Irrigation with ozonated water caused slight changes in bacterial composition but did not significantly affect microbial diversity, beneficial microbes (plant growth‐promoting bacteria, arbuscular mycorrhizal fungi), or grapevine trunk disease‐related pathogens.
David Labarga   +4 more
wiley   +1 more source

Adverse effects of grapevine trunk diseases on canes produced from infected rootstock mother blocks

open access: yesPest Management Science, EarlyView.
High incidences of GTD pathogens in rootstock mother vine heads, with Phaeomoniella chlamydospora and Diplodia seriata affecting cane physiology and quality. One‐year‐old canes harbor systemic inoculum, highlighting the need for careful monitoring and management.
Wynand Jacobus van Jaarsveld   +5 more
wiley   +1 more source

More than one species of Messor harvester ants (Hymenoptera: Formicidae) in Central Europe

open access: yesEuropean Journal of Entomology, 2006
It is commonly held that Central Europe harbours but a single harvester ant species, namely Messor structor. Recently discovered bionomic differences between two Central European populations, which may reflect interspecific variation, cast doubt on this ...
Birgit C. SCHLICK-STEINER   +9 more
doaj   +1 more source

An Annotated Checklist of Wisconsin Handsome Fungus Beetles (Coleoptera: Endomychidae) [PDF]

open access: yes, 2018
The first comprehensive survey of Wisconsin Endomychidae was initiated in 1998. Throughout Wisconsin sampling sites were selected based on habitat type and sampling history.
Price, Michele B, Young, Daniel K
core   +2 more sources

Vegetal residue‐based formulation of Trichoderma ossianense, a new indigenous vineyard species adapted to alkaline pH with potential biocontrol ability against Black‐foot disease pathogens

open access: yesPest Management Science, EarlyView.
The study identifies Trichoderma ossianense, was can be isolated from grapevine roots, is capable of growing at alkaline pH and controls black‐foot pathogens, highlighting the vegetal residue‐based formulations that preserve its viability. Abstract BACKGROUND Fungi of the Trichoderma genus are used in vineyards as biological control agents mainly ...
Laura Zanfaño   +7 more
wiley   +1 more source

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