Results 11 to 20 of about 18,520 (225)
RNAi efficacy is enhanced by chronic dsRNA feeding in pollen beetle. [PDF]
Commun Biol, 2021 AbstractDouble-stranded RNAs (dsRNAs) represent a promising class of biosafe insecticidal compounds. We examined the ability to induce RNA interference (RNAi) in the pollen beetle Brassicogethes aeneus via anther feeding, and compared short-term (3 d) to chronic (17 d) feeding of various concentrations of dsRNA targeting αCOP (dsαCOP).
Willow J +8 more
europepmc +7 more sources
Niche separation of pollen beetle parasitoids [PDF]
Frontiers in Ecology and Evolution, 2015 Species with similar resource requirements are commonly assumed to competitively exclude each other, unless they differentiate their ecological niches. Hence, parasitoid wasps that use the same host species need to find some way to avoid competition. The aim of this study was to identify the role of volatile cues from oilseed rape plants and the larval
Berger, Josef +3 more
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Generalist Pollen-Feeding Beetles During the Mid-Cretaceous [PDF]
SSRN Electronic Journal, 2019 The Cretaceous fossil record of amber provides a variety of evidence that is essential for greater understanding of early pollination strategies. Here, we describe four pieces of ca. 99-million-year-old (early Cenomanian) Myanmar amber from Kachin containing four closely related genera of short-winged flower beetles (Coleoptera: Kateretidae) associated
David Peris +5 more
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Anther mimicry in an African orchid pollinated by pollen-feeding beetles. [PDF]
Plant Biol (Stuttg)Abstract Flowers of many species have yellow markings that appear to mimic anthers or pollen and attract the attention of pollen‐seeking insects (usually female bees). We investigated a putative case of anther mimicry in Disa similis, an orchid with nectarless mauve flowers and conspicuous yellow markings on the tips of the labellum and lateral ...
Adit A, Johnson SD.
europepmc +3 more sources
Pollen digestion by flower-feeding Scarabaeidae: protea beetles (Cetoniini) and monkey beetles (Hopliini) [PDF]
Journal of Insect Physiology, 2001 Pollen protoplasm is very nutritious, but the hard and highly resistant outer wall (exine) of the pollen grain presents an obstacle that pollen-feeders must overcome to benefit from the valuable protoplasm. Pollen digestion in three pollen-eating scarab beetles, the green protea beetle Trichostetha fascicularis and two monkey beetle species ...
S A., Johnson, S W., Nicolson
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A protocol for increased throughput phenotyping of plant resistance to the pollen beetle
Pest Management Science, 2022 AbstractBACKGROUNDImproving crop resistance to insect herbivores is a major research objective in breeding programs. Although genomic technologies have increased the speed at which large populations can be genotyped, breeding programs still suffer from phenotyping constraints.
Laura Bellec +5 more
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Meteorological and landscape influences on pollen beetle immigration into oilseed rape crops.
Agric Ecosyst Environ, 2017 Heavy reliance on pesticide inputs to maintain crop yields has been an important aspect of agricultural intensification. Insecticide use has had detrimental impacts on pollinators and natural pest control agents, contributing to a decline in associated ecosystem services, and has also led to resistance development in pest populations. Throughout Europe,
Skellern MP +3 more
europepmc +3 more sources
Ecological Entomology, 2004 Abstract. 1. Pollen is considered to be an important dietary component for many species of flower‐feeding herbivores. Its influence on oviposition site selection by the pollen beetle Meligethes aeneus , and on the development of its larvae was investigated.
Cook, S. M. +2 more
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Palms and pollen beetles: two new anthophilous beetle species of Meligethinus from Mozambique (Coleoptera: Nitidulidae: Meligethinae) [PDF]
Zootaxa, 2020 The genus Meligethinus Grouvelle, 1906 represents a small group of pollen beetles, including some twenty species distributed from southern Palaearctic areas to northern Oriental and Afrotropical regions. All constituent species appear to be strictly associated as larvae and adults to male inflorescences of palms (Monocots: Arecaceae).
SABATELLI, SIMONE +7 more
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The role of pollen odour in the attraction of pollen beetles to oilseed rape flowers
Entomologia Experimentalis et Applicata, 2002 AbstractThe role of pollen odour in resource location by the pollen beetle, Meligethes aeneus (Fabricius) (Coleoptera: Nitidulidae), a pollen‐feeding insect regarded as a pest of oilseed rape, Brassica napus L., (Brassicaceae) crops, was investigated in a linear track olfactometer.
Cook, S. M. +3 more
openaire +1 more source