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Efficacy and biosafety assessment of neuropeptide CAPA analogues against the peach‐potato aphid ( Myzus persicae )
- Source :
- Insect Science. 29:521-530
- Publication Year :
- 2021
- Publisher :
- Wiley, 2021.
-
Abstract
- Insect CAPA neuropeptides are considered to affect water and ion balance by mediating the physiological metabolism activities of the Malpighian tubules. In previous studies, the CAPA-PK analogue 1895 (2Abf-Suc-FGPRLamide) was reported to decrease aphid fitness when administered through micro-injection or via topical application. However, a further statistically significant decrease in the fitness of aphids and an increased mortality could not be established with pairwise combinations of 1895 with other CAPA analogues. In this study, we assessed the topical application of new combinations of 1895 with five CAPA-PVK analogues on the fitness of aphids. We found that 1895 and CAPA-PVK analogue 2315 (ASG-[β3 L]-VAFPRVamide) was statistically the most effective combination to control the peach potato aphid Myzus persicae nymphs via topical application, leading to 72% mortality. Additionally, the combination (1895+2315) was evaluated against a selection of beneficial insects, i.e. a pollinator (Bombus terrestris) and three natural enemies (Chrysoperla carnea, Nasonia vitripennis and Adalia bipunctata). We found no significant influence on food intake, weight increase and survival for the pollinator and the three representative natural enemies. These results could facilitate to further establish, and generate CAPA analogues as alternatives to broad spectrum and less friendly insecticides. This article is protected by copyright. All rights reserved.
- Subjects :
- Insecticides
Aphid
Adalia bipunctata
Insecta
biology
Neuropeptides
Containment of Biohazards
biology.organism_classification
General Biochemistry, Genetics and Molecular Biology
Nasonia vitripennis
Horticulture
Aphids
Insect Science
Bombus terrestris
Animals
Beneficial insects
Myzus persicae
Nymph
Agronomy and Crop Science
Ecology, Evolution, Behavior and Systematics
Chrysoperla carnea
Subjects
Details
- ISSN :
- 17447917 and 16729609
- Volume :
- 29
- Database :
- OpenAIRE
- Journal :
- Insect Science
- Accession number :
- edsair.doi.dedup.....aedbc2bc5135a7078fef932ef0ed84d6