Breeding of companion plants selected for characters improving attraction and survival of beneficial insects.

Commodities

Practices

This project aims to breed and select companion plants, specifically Marigold (Tagetes spp.) and Sweet Alyssum (Lobularia maritima), for traits that enhance their attractiveness and nutritional value to beneficial insects such as pollinators and natural enemies. Beneficial insects require diverse resources like nectar, pollen, and suitable habitats to thrive. Enhancing these resources through habitat management and the strategic use of companion plants can significantly improve pest control and pollination services.

Current companion plants are often selected for aesthetic qualities rather than their ecological benefits, leading to a mismatch between floral signals and rewards. This project addresses this gap by breeding Marigold and Sweet Alyssum to increase nectar and pollen production and quality, thereby improving their effectiveness in attracting and supporting beneficial insects. Previous studies have shown that enhancing floral resources in agricultural landscapes increases the abundance of natural enemies and pollinators, contributing to better pest control and crop pollination.

By developing hybrids of these companion plants with improved traits, we aim to create more effective tools for sustainable agriculture, ultimately supporting biodiversity and ecosystem services in crop fields.

1. Field evaluation of different varieties of marigold and sweet alyssum for pollinator and natural enemy attraction. 
2. Selection of genotypes and breeding of new hybrids for high pollen and nectar production and other desirable characteristics for insect support 
3. Evaluation of nectar and pollen production and of the different hybrids in greenhouse conditions 
4. Evaluation of new flower hybrids in field conditions for beneficial attraction