Results 181 to 190 of about 18,520 (225)
Some of the next articles are maybe not open access.
The effects of pollen beetles on the foraging behaviour of honey bees
Journal of Apicultural Research, 1995SUMMARYAdults and larvae of the pollen beetle Meligethes aeneus (Nitidulidae) are abundant in flowers of oilseed rape (Brassica napus) in the UK. Their effects on the foraging behaviour of honey bees (Apis mellifera) were investigated in the field. Bees foraged predominantly from fully open flowers, but landed on fully open flowers containing adult ...
William D J Kirk +2 more
openaire +1 more source
Potential for oilseed rape resistance in pollen beetle control
Arthropod-Plant Interactions, 2016Breeding for plant resistance to insect pests is a classic strategy in integrated management, but it has never been developed for use against European pests of oilseed rape (Brassica napus) (OSR), especially one of the most damaging ones, the pollen beetle (Meligethes aeneus).
Hervé, Maxime, Cortesero, Anne-Marie
openaire +2 more sources
Agricultural management reduces emergence of pollen beetle parasitoids
Agriculture, Ecosystems & Environment, 2015Natural enemies such as predatory arthropods and parasitoids have the potential to suppress pest species and provide the ecosystem service biological control. When predicting the potential of biological control in agriculture it is important to give evidence on how agricultural management influence the abundance and functions of the natural enemies. In
Helena I. Hanson +2 more
openaire +1 more source
Pollen beetle in the UK; the start of a resistance problem?
EPPO Bulletin, 2008In 2003, the first report of poor control of pollen beetle Meligethes aeneus at a site in South East England in the UK was investigated but resistance to pyrethroid insecticides was not confirmed in subsequent laboratory testing. Bioassays of 26 UK samples of M.
openaire +1 more source
Insecticide resistance in pollen beetles over 7 years – a landscape approach
Pest Management Science, 2015AbstractBACKGROUNDIn spite of considerable interest in the impact of pesticides on pest populations, few attempts have been made to link resistance patterns of insect pests to land‐use features across spatial and temporal scales. We hypothesise that pollen beetle pesticide resistance increases in areas with a high proportion of oilseed rape and with an
Laura G A, Riggi +3 more
openaire +2 more sources
Olfactory response of pollen beetle to essential oils
2021The development of resistance of the pollen beetle, as the economically most important rapeseed pest, to insecticides as well as the loss of active substances due to legal regulations is a constant problem for producers. New alternative non-chemical methods are needed for successful control of this pest. According to literature, few essential oils have
Juran, Ivan +2 more
openaire
Sterol limitation in a pollen-fed omnivorous lady beetle (Coleoptera: Coccinellidae)
Journal of Insect Physiology, 2010Nutritional constraints of non-prey foods for entomophagous arthropods are seldom investigated, yet are crucial to understanding their nutritional ecology and function within natural and managed environments. We investigated whether pollen from five maize hybrids was of variable quality for the lady beetle, Coleomegilla maculata, whether suitability of
Lucia, Pilorget +2 more
openaire +2 more sources
Plant cells which aid in pollen digestion within a beetle's gut
Oecologia, 1990The peach palm, Bactris gasipaes H.B.K., in Costa Rica, possesses unusual trichomes on the inflorescence epidermal surface. Certain cells of the trichome possess a thick, highly lignified cell wall and are consumed by the beetle Cyclocephala amazona L. before it ingests pollen from the same inflorescence.
Fred R, Rickson +2 more
openaire +2 more sources
Pollen consumption and digestion by leaf beetles
1994Floral feeding in leaf beetles has been reported mainly for Aulacoscelinae, Donaciinae, Orsodacninae, Criocerinae, Megascelinae, Cryptocephalinae, Eumolpinae, Chrysomelinae, Galerucinae, and Alticinae (Jolivet, 1977, 1978, 1988, 1991; Nielsen, 1988; Schmitt, 1988, etc.), but the actual consumption of pollen in these insects has been rarely reported ...
openaire +1 more source
Local and landscape determinants of pollen beetle abundance in overwintering habitats
Agricultural and Forest Entomology, 2011The development of integrated pest management strategies requires that the semi‐natural habitats scattered across the landscape are taken into account. Particular determinants of insect pest abundance in overwintering habitats just before they migrate onto crops appear to be poorly ...
Rusch, Adrien +3 more
openaire +3 more sources