Does caraway repel peach aphids: an article
The peach aphid (Myzus persicae) has posed a constant challenge to the vitality of economically significant crops. Over recent decades, this pest has developed resistance to various chemical pesticides, necessitating the exploration of alternative, environmentally friendly pest management solutions. One direction to explore is plant essential oils, which have been under scrutiny for their potential efficacy against these resilient pests.
In a recent study, researchers delved into the efficacy of caraway (Carum carvi L.) seed essential oils as a potential repellent against the green peach aphid. The study, conducted using a bridge method and white cabbage as host plants, aimed to assess the repellent properties of three different types of caraway essential oils against these aphids.
The analysis revealed promising outcomes. Each of the selected caraway essential oils exhibited varying degrees of repellence against the aphids, signifying their potential as a deterrent. Notably, the essential oil with the highest concentration of D-limonene, a key component, demonstrated the most substantial repellent effect, showcasing a Repellency Index of +41%. This effect remained stable for a considerable duration, extending up to 330 minutes.
However, incorporating various surfactants in the formulation resulted in a setback, dampening the repellent effect during the testing period and exposing the complexity of crafting a viable, effective formulation.
Despite this challenge, the study offers a beacon of hope in the realm of organic pest management. Caraway essential oil emerges as a potential tool in combating green peach aphids, albeit with the need for further research and refinement to formulate it into a practical, market-ready product.
Read more in the article “In Vivo Bioassay of the Repellent Activity of Caraway Essential Oil against Green Peach Aphid”, published on MDPI “Insects” Special Issue “New Formulations of Natural Substances against Insect Pests”!
The research is a part of the project “Essential oil distillation
waste streams as a potential source of sustainable plant-based repellent
products” (No. Nr. 1.1.1.1/20/A/096). It is developed as a part of the
European Regional Development Fund programme 1.1.1.1 measure “Support
for applied research” and specific objective 1.1.1 “Improve research and
innovation capacity and the ability of Latvian research institutions to
attract external funding, by investing in human capital and
infrastructure”
Biorefining project results presented at GENP 2022 congress in Croatia
On 27-28 October, The 4th International Congress on “Green Extraction of Natural Products” (GENP2022) took place in Poreč, Croatia. It was organized by the University of Zagreb Faculty of Food Technology and Biotechnology.
The results of Biorefinery project presented in the GA congress
The 70th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) was held in Thessaloniki, Greece, from 28 to 31 August this year. The aim of the annual congress is to broaden the existing knowledge and gain new experience in the field of natural substances, their products and research, as well as to establish new contacts with the industry in other countries.
How are insect tests carried out in the Applied Entomology Laboratory of IES?
In our previous article on the project “Essential oil distillation waste streams as a potential source of sustainable plant-based repellent products” we looked at the path of plant processing by-products, from seemingly low-value biomass to valuable water extracts, this time let’s explore the next step in the process – insect testing. Kristīne Berķe-Ļubinska, Head of the Laboratory of Applied Entomology of the Institute of Environmental Solutions, will guide us through this section of the project.
A repelling innovation: insect repellents from the waste of essential oil production
Zero-waste - Although this phrase suggests shopping in bulk, waste-free and strictly restricting consumption, this bioeconomy concept is particularly effective when implemented in a production environment. For example, materials that have before been written off as waste are now seen as potential raw materials for the development of innovative products. At the moment, at the Institute of Environmental Solutions, we give meaningful second life to the production by-products of our partners, the leading Baltic medicinal and aromatic plant grower "Field and Forest".
Developing cosmetic ingredient formulas from SIA “Field and Forest” extraction by-products
For a year already, Northern Europe’s
leading cosmetic and medicinal plant farming experts SIA “Field and
Forest” have been cooperating with the researchers of Institute for
Environmental Solutions and natural cosmetics raw material producer
SIA “Alternative plants”. The aim is to use secondary products
derived from a production process for developing new value-added
products for cosmetics industry.
Propagation of endangered plant species in IES’s climate control chamber
IES has developed a specially equipped climate control chamber for propagation of endangered medicinal and aromatic plants. The climate chamber helps to prepare the plants for further cultivation in organic farming.
Propagation of endangered plant species in IES’s climate control chamber
IES has developed a specially equipped climate control chamber for propagation of endangered medicinal and aromatic plants. The climate chamber helps to prepare the plants for further cultivation in organic farming.
SIA “Field and Forest” develops commercial cultivation technologies for ginseng and Chinese horseradish
Knowledge of the medicinal plants as an asset for development of future business
SIA “Field and Forest” develops zero-waste manufacturing technologies
Assessing concentrations of active compounds in three endangered medicinal plants
New cleaning and personal hygiene products developed in international cooperation
Deriving cosmetic ingredients from medicinal chamomile distillation by-products
Adapting wild plant species to organic farming
Researchers from the SIA “Field and Forest” and the Institute for Environmental Solutions (IES) introduces 9 wild medicinal and aromatic plant (MAP) species suitable for growing in organic farming. In March, researcher Dr Arta Kronberga was invited to share IES’s experience in the international conference “Breeding and seed sector innovations for organic food systems”.
Herbal waters-based household cleaning and personal hygiene products
The joint project of the Latvian organic farming and
essential oil production company SIA “Field and Forest” and the
largest Estonian household chemical company “Mayeri industries” AS
on the development of new liquid cleaning and personal hygiene
products is nearing completion. The newly created products – liquid
soap, universal cleaner, laundry softener and dishwashing detergent
– are based on SIA “Field and Forest” produced herbal waters as a
natural fragrance.
Organic insect repellents from medicinal plant essential oil by-products
Developing cosmetic ingredients from medicinal plant by-products
Researchers from the Institute for Environmental Solutions (IES) in cooperation with SIA "Alternative plants" develop high value-added bioactive cosmetic ingredients from by-products of medicinal plant processing and plant cell cultivation.
Developing growing technologies for endangered plants
Field and Forest develops innovative technologies for growing ginseng and Chinese horseradish in Latvia
SIA “Field and Forest” and Institute for Environmental Solutions (IES) researchers develops innovative technologies for growing ginseng and Chinese horseradish in Latvia’s climate conditions. Thus, allowing the tea producer SIA “Bargi” develop new value-added tea products.