Results 111 to 120 of about 100,355 (308)

Functional Diversity of Nectary Structure and Nectar Composition in the Genus Fritillaria (Liliaceae)

open access: yesFrontiers in Plant Science, 2018
Fritillaria is a genus consisting of 130 to 140 species of bulbous plants, native to temperate regions of the northern hemisphere. Generally viewed as an insect pollinated genus with the exception of two North American species, Fritillaria gentneri and F.
Katarzyna Roguz   +8 more
doaj   +1 more source

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

open access: yesPest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks   +3 more
wiley   +1 more source

Sugar content in nectar flowers of siratro (Macroptilium atropurpureum Urb.) - DOI: 10.4025/actascianimsci.v27i1.1248

open access: yesActa Scientiarum: Animal Sciences, 2008
Siratro (Macroptilium atropurpureum Urb.) is a forager with high nutritional values and excellent palatability, and its phenology is almost unknown. Aiming at improving the knowledge and understanding siratro pollinators and floral biology, the total ...
Vagner de Alencar Arnaut de Toledo   +8 more
doaj   +1 more source

Colonization and spatiotemporal distribution of bruchid pests in lentil and faba bean fields

open access: yesPest Management Science, EarlyView.
This study of 104 fields identifies Bruchus signaticornis in lentils and B. rufimanus in faba beans as the sole grain‐damaging species. Their uniform distribution within fields and the strong effect of regulatory factors on larvae and egg survival emphasize the need for species‐specific, phenology‐based and spatially informed integrated pest management
Anastasia Chery‐Lagrange   +7 more
wiley   +1 more source

Statement on the findings in recent studies investigating sub‐lethal effects in bees of some neonicotinoids in consideration of the uses currently authorised in Europe

open access: yesEFSA Journal, 2012
The European Food Safety Authority was requested to perform a comparison between the doses of several neonicotinoids tested in the studies from Henry et al.
European Food Safety Authority
doaj   +1 more source

Bumblebees gain fitness through learning [PDF]

open access: yes, 2007
Despite the widespread assumption that the learning abilities of animals are adapted to the particular environments in which they operate, the quantitative effects of learning performance on fitness remain virtually unknown. Here we evaluate the learning
Lars Chittka, Nigel E. Raine
core   +1 more source

Nectar defense and hydrogen peroxide in floral nectar of Cucurbita pepo

open access: yesActa Agrobotanica, 2015
This study was carried out to investigate some similarities between the nectaries of <em>Nicotiana</em> sp. and <em>Cucurbita</em> pepo, such as starch accumulation in the nectary parenchyma, changes in nectary color during maturation, and the production of a large quantity of sucrose-dominant nectar.
Daniele Nocentini   +2 more
openaire   +4 more sources

Pesticide use in integrated pest and pollinator management framework to protect pollinator health

open access: yesPest Management Science, Volume 81, Issue 4, Page 1691-1696, April 2025.
Integrated pest management (IPM) emphasizes non‐chemical methods, with pesticides as a last resort, while integrated pest and pollinator management (IPPM) integrates pollinator health into pest control strategies. Abstract Agricultural pesticides have historically been a critical tool in controlling pests and diseases, preventing widespread suffering ...
Ngoc T Phan   +6 more
wiley   +1 more source

Effect of the partial substitution of mango and ground chia on the antioxidant capacity in the elaboration of nectar based on sachatomate [PDF]

open access: yesBrazilian Journal of Biology
The consumption of products with high nutritional value and antioxidant capacity has increased notably in recent years. Due to health problems such as triglycerides and cardiovascular problems, its use is becoming reduced. So that, chia (Salvia hispánica)
T. J. C. Rivera   +11 more
doaj   +1 more source

Expanding Possibilities for the Use of Writing Genres in Early Elementary Science: Investigating First‐Graders’ Multimodal Sequential Explanations

open access: yesScience Education, EarlyView.
ABSTRACT This study investigates the outcomes of the implementation of a first grade unit incorporating multiple modes of representation and genre‐based pedagogy to support writing instruction in the genre of sequential explanations. At the end of a 6‐day unit investigating the structure and functions of carnivorous plants, 47 first graders completed a
Rachel E. Wilson, Leslie U. Bradbury
wiley   +1 more source

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