Exploiting Thrips Aggregation Pheromones to Develop a Lure-and-Kill Strategy for the Management of the Bean Flower Thrips

Abstract:

The potential of semiochemicals to lure insect pests to a trap where they can be killed with biopesticides has been demonstrated as an eco-friendly pest management alternative. In this study, we tested two recently characterized male-produced aggregation pheromones of the bean flower thrips Megalurothrips sjostedti (Trybom), namely (R)-lavandulyl 3-methylbutanoate (major) and (R)-lavandulol (minor), for their field efficacy. Moreover, compatibility of these pheromones and two other thrips attractants, Lurem-TR and neryl (S)-2-methylbutanoate, with the entomopathogenic fungus (EPF) Metarhizium anisopliae ICIPE 69 has been determined. Our study revealed that the M. sjostedti aggregation pheromones have dose-dependent antifungal effects on the EPF viability,but showed no fungistatic effect at a field-realistic dose for attraction of thrips. (R)-lavandulyl 3-methylbutanoate had similar antifungal effects as neryl (S)-2-methylbutanoate 8 days after exposure;whereas, Lurem-TR had a stronger antifungal effect than other thrips attractants. In the semi-field experiments, all autoinoculation devices maintained at least 86% viability of M. anisopliae conidia after 12 days of exposure. Field trials demonstrated for the first time that (R)-lavandulyl 3-methylbutanoate increases trap catches. Our findings pave a way for designing a lure-and-kill thrips management strategy to control bean flower thrips using autoinoculation devices or spot spray application.
Subscribe to access this work and thousands more
Overall Rating

0

5 Star
(0)
4 Star
(0)
3 Star
(0)
2 Star
(0)
1 Star
(0)
APA

Mfuti, D (2024). Exploiting Thrips Aggregation Pheromones to Develop a Lure-and-Kill Strategy for the Management of the Bean Flower Thrips. Afribary. Retrieved from https://afribary.com/works/exploiting-thrips-aggregation-pheromones-to-develop-a-lure-and-kill-strategy-for-the-management-of-the-bean-flower-thrips

MLA 8th

Mfuti, David "Exploiting Thrips Aggregation Pheromones to Develop a Lure-and-Kill Strategy for the Management of the Bean Flower Thrips" Afribary. Afribary, 10 Mar. 2024, https://afribary.com/works/exploiting-thrips-aggregation-pheromones-to-develop-a-lure-and-kill-strategy-for-the-management-of-the-bean-flower-thrips. Accessed 30 May. 2024.

MLA7

Mfuti, David . "Exploiting Thrips Aggregation Pheromones to Develop a Lure-and-Kill Strategy for the Management of the Bean Flower Thrips". Afribary, Afribary, 10 Mar. 2024. Web. 30 May. 2024. < https://afribary.com/works/exploiting-thrips-aggregation-pheromones-to-develop-a-lure-and-kill-strategy-for-the-management-of-the-bean-flower-thrips >.

Chicago

Mfuti, David . "Exploiting Thrips Aggregation Pheromones to Develop a Lure-and-Kill Strategy for the Management of the Bean Flower Thrips" Afribary (2024). Accessed May 30, 2024. https://afribary.com/works/exploiting-thrips-aggregation-pheromones-to-develop-a-lure-and-kill-strategy-for-the-management-of-the-bean-flower-thrips