Results 51 to 60 of about 110,156 (191)

Infestation of poppy cultures with the poppy stem gall wasp (Timaspis papaveris) Cynipidae: Hymenoptera

Plant Protection Science, 2005
The mortality of pupae in stems lying on the ground during hibernation was 51.7% in 2003. The emergence of adults in 2003 and 2004 was monitored from late April to early July by photoeclectors placed on fields that grew poppy the previous year.
Josef Šedivý, Pavel Cihlař
doaj   +1 more source

Environmental drivers influencing the ambrosia beetle community: The primary role of geographic and climatic drivers in chestnut‐growing areas

Agricultural and Forest Entomology, EarlyView.
Ethanol‐baited traps were placed in cultivated chestnut orchards (a) and mixed environments with assorted tree composition (b), over a 2‐year monitoring period in two valleys (NW Italy). A total of 118,286 ambrosia beetles was collected, representing six species.
Eleonora Vittoria Fontana, Chiara Ferracini   +1 more
wiley   +1 more source

Differential expression of genes associated with phenolic compounds in galls of Quercus castanea induced by Amphibolips michoacaensis

Journal of Plant Interactions, 2019
Secondary metabolites related to plant defense against natural enemies and enzymes involved in their biosynthesis vary during gall development. We assessed the differential gene expression related to defensive metabolites in cynipid wasp galls of Quercus
Eunice Kariñho-Betancourt, Paulina Hernández-Soto, Martha Rendón-Anaya, Nancy Calderón-Cortés, Ken Oyama   +4 more
doaj   +1 more source

Pest‐preservation paradox among insects

Conservation Biology, EarlyView.
The pest‐preservation paradox is a non‐binary perspective that insects range from those that are harmful and requiring management on the one side, to those requiring conservation intervention on the opposite end of the spectrum. Importantly, the vast majority of insects occur somewhere in the center of the two extremes, and their position along the ...
Michael J. Samways, Charl Deacon, René Gaigher, James S. Pryke   +3 more
wiley   +1 more source

Gall induction may benefit host plant: a case of a gall wasp and eucalyptus tree [PDF]

Tree Physiology, 2013
Gall-inducing insects display intimate interactions with their host plants, usually described as parasitic relationships; the galls seem to favor the galler alone. We report on a case in which the presence of the galls induced by Leptocybe invasa Fisher & LaSalle (Hymenoptera; Eulophidae) benefit its host plant, the river red gum Eucalyptus ...
S, Rocha, M, Branco, L Vilas, Boas, M H, Almeida, A, Protasov, Z, Mendel   +5 more
openaire   +2 more sources

Parasitic wasp‐associated polydnavirus and venom affect arthropod community assembly on wild cabbage via the caterpillar host

Ecological Entomology, EarlyView.
Cotesia glomerata polydnavirus and venom, either alone or in combination, affect colonisation by members of the arthropod community in a natural field setting. Plants damaged by P. brassicae injected with both polydnavirus and venom were colonised more often by Mamestra brassicae caterpillars, Myzus persicae aphids and aphid parasitoids compared to ...
Sarah Naomi Kalisvaart, Gabriele Bolletta, Gabriel Joachim, Marcel Dicke, Maximilien A. C. Adam, Erik H. Poelman   +5 more
wiley   +1 more source

Preservation of sweet chestnut genetic resources (Castanea sativa Mill.) against attack by chestnut gall wasp (Dryocosmus kuriphilus Yasumatsu, 1951)

Acta Agriculturae Slovenica, 2018
European sweet chestnut (Castanea sativa Mill.) is one of the most important wood species due to its environmental and economic role in many agro-forestry systems. Chestnut gall wasp (Dryocosmus kuriphilus Yasumatsu, 1951) is currently the most dangerous
Rebecca VOLLMEIER, Gregor OSTERC, Zlata LUTHAR   +2 more
doaj   +1 more source

Canopy position and tree size structure the distribution of honeydew‐producing scale insects (Hemiptera: Coccoidea) in a temperate hardwood forest

Ecological Entomology, EarlyView.
Scale insect abundance peaked in the upper canopy of sugar maples. Parthenolecanium peaked on older internodes; Lepidosaphes on the current leader. Internodes longer than the previous carried more scales; wider ones fewer. Abstract Forest canopies are vertically stratified habitats in which microclimate and host tissue quality vary with height.
Susan M. Frye, Sandy M. Smith, Sean C. Thomas   +2 more
wiley   +1 more source

Studies on the resistance of chestnut trees to chestnut gall wasps II

Engei Gakkai zasshi, 1968
1. Host tissues such as young leaves or stipules of chestnut trees around larva began to grow misshapenly, envelop the parasite and form galls from late July. In late August, gall tissues embraced the wasp commpletely to build a larval cavity. Since this period, in susceptible varieties individual gall became to adhere each other and more advanced ...
Shuichiro MATSUI, Hirotaka TORIKATA
openaire   +5 more sources

Biological control of eucalyptus Gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) in Punjab, India [PDF]

, 2020
In this investigation, biological control of eucalyptus Gall wasp, Leptocybe invasa Fisher & La Salle (Hymenoptera: Eulophidae) in Punjab, India was investigated.
Yousuf, Mohd., Ikram, Mohsin, Khan, Salman, Singh, Sudhir   +3 more
core   +1 more source