Results 41 to 50 of about 30,544 (254)

Two new species of the genus Stenommatus Wollaston, 1873 (Coleoptera: Curculionidae: Dryophthorinae; Dryophthorini) from Peru

open access: yesRevista Peruana de Biología, 2019
The weevil tribe Dryophthorini is reported in Peru for the first time. Two species from Satipo, Junin, Stenommatus chabooae Legalov n. sp. and Stenommatus sokolovi Legalov n. sp., are herein described. Stenommatus chabooae Legalov n. sp. is characterized
Andrei A. Legalov
doaj   +1 more source

Validation of the Names of Three Weevil Species Described by Borovec et al., The Enigmatic Weevil Genus Philetaerobius from Southern Africa: Definition, Affinities and Description of Three New Species (Coleoptera: Curculionidae: Entiminae); Diversity, 2018, 10, 30

open access: yesDiversity, 2018
Three new species of the small entimine genus Philetaerobius Marshall, 1923 from southern Africa are described, P. endroedyi sp. n., P. garibebi sp. n. and P. louwi sp.
Roman Borovec   +2 more
doaj   +1 more source

Using Optimization and Simulation Techniques to Estimate Initial Weevil Populations [PDF]

open access: yes, 1991
In this paper, a mathematical programming and simulation method is used to estimate the number of weevils (Neochetina bruchi Hustache, and N. eichhorniae Warner) necessary to initialize the INSECT model which simulates the biological control of ...
Akbay, Kunter S.
core   +1 more source

Taxonomic redescription and biological notes on Diaugia angusta (Diptera, Tachinidae): parasitoid of the palm boring weevils Metamasius ensirostris and M. hemipterus (Coleoptera, Dryophthoridae) [PDF]

open access: yes, 2011
Diaugia angusta Perty, 1833 is a Neotropical species of Tachinidae (Diptera) reported here as a parasitoid of Metamasius ensirostris (Germar, 1824) and M. hemipterus (Linnaeus, 1758) (Coleoptera: Dryophthoridae) in Brazil.
Nihei, Silvio, Pavarini, Ronaldo
core   +3 more sources

Release of multicomponent pheromones from porous fibres

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Surface engineering empowers a polymer exclusion net to serve dual functions: physical exclusion and pheromonal release, allowing for pest control in agricultural crops. In previous work, a net woven from porous fibres releasing simple, single‐component alarm pheromones showed promising results in field tests.
Darius Klassen   +7 more
wiley   +1 more source

Sexual Selection in a Brentid Weevil [PDF]

open access: yesEvolution, 1982
In most insects, differences between the sexes involve not only primary characters necessary for gamete production, copulation, and oviposition, but also sexual structures and behaviors involved in the acquisition of mates. The most striking of these secondary characters, such as exaggerated size, weaponry, or coloration, tend to occur in males, and ...
openaire   +2 more sources

Unlocking the Multifunctional Properties of Litsea cubeba Essential Oil: Composition, Antimicrobial, Antibiofilm and Insecticidal Activities

open access: yesFlavour and Fragrance Journal, EarlyView.
Unveiling the chemical and biological properties of Litsea cubeba essential oil. ABSTRACT Litsea cubeba essential oil (LCEO) is recognised for its broad spectrum of biological activities, including antimicrobial and insecticidal effects, making it a promising natural alternative to synthetic agents.
Miroslava Kačániová   +10 more
wiley   +1 more source

Repellency of insecticides and the effect of thiacloprid on bumble bee colony development in red clover (Trifolium pratense L.) seed crops

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science, 2019
The study intended to compare repellency of three insecticides on bumble bees and honey bees in Norwegian red clover (Trifolium pratense L.) seed crops, and to examine effects of thiacloprid on bumble bee colony development in the field.
Lars T. Havstad   +3 more
doaj   +1 more source

Moisture tempers impairment of adult Otiorhynchus sulcatus (Coleoptera: Curculionidae) climbing ability by fluoropolymer, talc dust, and lithium grease [PDF]

open access: yes, 2005
As part of a project to develop tools for the physical exclusion of flightless root weevils, adult black vine weevils (BVW), Otiorhynchus sulcatus (F.), were placed in open enclosures with smooth walls of glass, plastic or aluminum to test their ability ...
Bomford, Michael K., Vernon, Robert S.
core   +1 more source

Establishment, Impacts, and Current Range of Spotted Knapweed (\u3ci\u3eCentaurea Stoebe\u3c/i\u3e Ssp. \u3ci\u3eMicranthos\u3c/i\u3e) Biological Control Insects in Michigan [PDF]

open access: yes, 2018
Centaurea stoebe L. ssp. micranthos (Gugler) Hayek (spotted knapweed) is an invasive plant that has been the target of classical biological control in North America for more than four decades. Work in the western U.S.
Bahlai, C. A, Carson, B. D, Landis, D. A
core   +2 more sources

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