Results 51 to 60 of about 18,520 (225)

Can the mid-Holocene provide suitable models for rewilding the landscape in Britain? [PDF]

, 2009
Palaeoecologists have been encouraging us to think about the relevance of the Holocene fossil record for nature conservation for many years (e.g. Buckland 1993) but this information seems slow to filter through to the conservation community.
Buckland, Paul C., Bullock, J.M., Hodder, Kathryn H., Kirby, Keith K.   +3 more
core  

Larval antibiosis to cabbage stem flea beetle (Psylliodes chrysocephala) is absent within oilseed rape (Brassica napus)

Pest Management Science, EarlyView.
We screened a panel of 98 Brassicaceae genotypes (97 Brassica napus and 1 Sinapis alba) for cabbage stem flea beetle (Psylliodes chrysocephala) larval antibiosis. We found limited evidence for antibiosis across B. napus but consistent antibiosis in S. alba. Brassicaceae relatives may therefore better inform resistance traits for breeding.
Ryan E Brock, Clara Courtney, Steven Penfield, Rachel Wells   +3 more
wiley   +1 more source

Chitosan‐protected dsRNA increases efficacy against Helicoverpa armigera without compromising biosafety for pollinators

Pest Management Science, EarlyView.
Chitosan/tripolyphosphate/double‐stranded RNA (dsRNA) nanoparticles enhance RNA interference efficacy of orally delivered dsRNA against Helicoverpa armigera. Nanoparticles reduce the LC50 and do not cause deleterious effects or toxicity on beneficial insects.
Daniel DN Vasquez, Lays A Teixeira, Rangel F Alves, Raire Cavalcante, Leonardo LP Macedo, Carmen SS Pires, Luciano P Silva, Maria CM Silva, Feras M Afifi, Carolina V Morgante, Martin G Edwards, Angharad MR Gatehouse, Maria F Grossi‐de‐Sa   +12 more
wiley   +1 more source

Intercropping mitigates incidence of the oilseed rape insect pest complex

Pest Management Science, EarlyView.
Intercropping reduces the incidence of the oilseed rape insect pest complex with a significant impact of the direct visual and physical disruption provided by the companion plant. Abstract BACKGROUND Oilseed rape (OSR, Brassica napus) is a major crop requiring numerous phytosanitary treatments.
Laurie Magnin, Ivan Hiltpold, Alexandra Jullien, Alice Baux   +3 more
wiley   +1 more source

A Friend Unmasked: Notes on \u3ci\u3eChauliognathus Pensylvanicus\u3c/i\u3e (Coleoptera: Cantharidae) and the Nature of Natural History [PDF]

, 2018
Data from field observations from 1992 through 2006 and from museum specimens of adult Chauliognathus pensylvanicus (DeGeer) from Wisconsin are presented here, with information from the literature.
Williams, Andrew H
core   +2 more sources

Pollinator diversity and host specificity in threatened Encephalartos cycads and their implications for co‐extinction and species recovery

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The highly threatened African cycad genus Encephalartos faces severe threats such as habitat loss and poaching. In addition, the lack of sexual recruitment due to the absence of pollinators (pollinator collapse) has emerged as another major threat.
Paul D. Janse van Rensburg, Terence N. Suinyuy, John S. Donaldson   +2 more
wiley   +1 more source

THE POSSIBILITY OF MUTUAL CONTROL OF STEM MINING WEEVILS AND POLLEN BEETLE IN OILSEED RAPE

Applied Ecology and Environmental Research, 2020
Stem weevils and pollen beetle are the first economically significant pests that attack oilseed rape crops after winter hibernation. Correct timing of insecticide application is a key point in control of both pests. The aim of this research is whether the mutual control of both pests is possible in order to reduce insecticide input.
Juran, Ivan, Grubišić, Dinka, Okrugić, Vedrana, Gotlin Čuljak, Tanja   +3 more
openaire   +2 more sources

Rape pollen beetle [PDF]

, 2014
Organic rapeseed oils is in demand. But the organic rape cultivation is difficult. Especially the pollen beetle causes big yield losses. As there is currently no allowed direct control measure, preventive measures have to be used.
Daniel, Claudia, Messerli, Niklaus, Schmutz, Res   +2 more
core  

Exploring marking methods for the predatory hoverfly Sphaerophoria rueppellii (Diptera: Syrphidae)

Insect Science, EarlyView.
As important pollinators and predators of aphids, hoverflies play an important role in ecosystems. This study focuses on identifying the best marking technique for the model species Sphaerophoria rueppellii that can be used to track hoverfly feeding and oviposition sites, evaluating three methods: rubidium (RbCl), fluorescein, and fluorescent dusts ...
Michele Violi, Elena Costi, Elena Monari, Daniele Sommaggio, Lara Maistrello   +4 more
wiley   +1 more source

The Occurence of Lower Sensitivity Pollen Beetle (Meligethes spp.) Populations to Chlorpyriphos in Winter Oilseed Rape (Brassica napus L.) [PDF]

, 2015
Pollen beetle (Meligethes spp.) is the most important oilseed rape pest. If no control measures are conducted, this pest could cause even more than 50% reduction of the yield which is the reason of high insecticides input every year.
Ivan Juran, Mario Ančić, Renata Pernar, Tanja Gotlin Čuljak   +3 more
core   +1 more source