Results 21 to 30 of about 166,039,062 (304)

Pesticidal activity of certain plant extracts and their isolates against the cowpea beetle Callosobruchus maculatus (F.) (Coleoptera: Chrysomelidae: Bruchinae)

open access: yesHerba Polonica, 2015
Different extracts from seven plant species were assayed against the cowpea beetle (Callosobruchus maculatus) in the laboratory. The plants were extracted sequentially with petroleum ether, chloroform and ethyl alcohol.
Dimetry Nadia Zikry   +3 more
doaj   +1 more source

Evaluation of surface roughness and Vickers microhardness of various nano-herbal extracts on demineralized dentin and their bactericidal efficacy with 970-nm wavelength diode laser irradiation

open access: yesBulletin of the National Research Centre, 2021
Objective Was to evaluate effect of clove, turmeric and garlic nano-herbal extracts on surface roughness and microhardness of demineralized dentin, and their bactericidal effect on Streptococcus mutans and Streptococcus sobrinus with or without diode ...
Lamiaa M. Moharam   +3 more
doaj   +1 more source

Transgenic resistance to pathogens and pests [PDF]

open access: yes, 2004
Pathogens and pests constantly threaten plants and cause crop losses of significant economic importance for agricultural production worldwide. One way to reduce the damage caused by pathogens and pests is the development of new, resistant cultivars ...
Melander, Margareta
core   +1 more source

Commodity risk assessment of Fagus sylvatica plants from the UK

open access: yesEFSA Journal, 2023
The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’.
EFSA Panel on Plant Health (PLH)   +30 more
doaj   +1 more source

Plant Allelochemicals as Sources of Insecticides

open access: yesInsects, 2021
In this review, we describe the role of plant-derived biochemicals that are toxic to insect pests. Biotic stress in plants caused by insect pests is one of the most significant problems, leading to yield losses.
Ivana Tlak Gajger, Showket Ahmad Dar
doaj   +1 more source

Commodity risk assessment of Acer platanoides plants from the UK

open access: yesEFSA Journal, 2023
The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’.
EFSA Panel on Plant Health (PLH)   +30 more
doaj   +1 more source

Influence of Soil Tillage Systems on Rapeseed Production Parameters and on the Numerical Density of Pest Complex

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Agriculture, 2023
Brassica rapa L. is one of the most common plant cultivated in Europe. The farmers from Ungheni area (Mureș, Romania) reported the attack of pest complex in rapeseed culture in the 2021 year.
Vasile-Adrian HORGA   +5 more
doaj   +1 more source

Cultivation cost-benefit analysis of some important medicinal plants in Serbia [PDF]

open access: yes, 2020
Driven by frequent media misinformation about the level of profitability of growing certain medicinal plants, in this paper we presented a cost-benefit analysis based on twenty years of experience in field production.
Pljevljakušić, Dejan***dpljevljakusic@mocbilja.rs***Institute for Medicinal Plants Research "Dr. Josif Pančić", Belgrade***http://orcid.org/0000-0003-2362-8290   +1 more
core   +1 more source

Functional biodiversity to improve pest control in organic cropping systems [PDF]

open access: yes, 2013
A sustainable use of functional agrobiodiversity (FAB) providing habitats with suitable floral resources is needed to conserve and improve pest control by natural enemies in organic cropping and other low-input systems.
Schärer, Hans-Jakob   +2 more
core   +1 more source

Chemical interaction between undamaged plants [PDF]

open access: yes, 2011
Most research on plant–plant chemical interactions has focussed on events following herbivore or pathogen attack. However, undamaged plants also interact chemically as a natural facet of their behaviour, and this may have consequences for insects that ...
Glinwood, Robert   +9 more
core   +1 more source

Home - About - Disclaimer - Privacy