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Toxicological Impact of Lambda-Cyhalothrin on Apis Mellifera: Comparative Analysis Under Semi-Field and Field Conditions Cover

Toxicological Impact of Lambda-Cyhalothrin on Apis Mellifera: Comparative Analysis Under Semi-Field and Field Conditions

Open Access
|Dec 2024

Abstract

Lambda-cyhalothrin is the most widely used insecticide worldwide. This study investigates the impact of lambda-cyhalothrin on honeybees (Apis mellifera) colonies under semi-field and field conditions utilizing the formulated product (Karate 5% at a concentration of 0.85 ml/l). Considering the application of lambda-cyhalothrin in onion fields, the foraging activities reduced by 27.89 and 29.28% under semi-field and field conditions, respectively. The number of dead workers in the comparison group was three-fold higher than that in the control group under both semi-field and field conditions. Under semi-field and field conditions, reductions were observed in the brood (22.6 and 24.01%), pollen (94.46 and 41.51%), and nectar (69.27 and 44.50%) areas. The effect of lambda-cyhalothrin on the strength of A. mellifera under semi-field conditions resulted in a significant decrease until the 14th day (2.20 bee frames/hive) and in field condition it was on the 7th day (4.79 bee frames/hive). This highlights the non-bee-safe nature of lambda-cyhalothrin when applied during flowering, and spraying should be avoided to reduce its contamination of nectar and pollen. Overall, our results show the significance of conducting field trials to accurately assess the risk of pesticides, depicting a more realistic exposure scenario under actual colony conditions.

DOI: https://doi.org/10.2478/jas-2024-0007 | Journal eISSN: 2299-4831 | Journal ISSN: 1643-4439
Language: English
Page range: 119 - 131
Submitted on: Dec 17, 2023
Accepted on: May 24, 2024
Published on: Dec 18, 2024
Published by: Research Institute of Horticulture
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2024 Mohammad Abdul Waseem, Meena Thakur, Sailaja Vallabuni, Sunny Sharma, Abeer Hashem, Elsayed Fathi Abd Allah, published by Research Institute of Horticulture
This work is licensed under the Creative Commons Attribution 4.0 License.