Gleice Ane de S. Gonçalves, Khalid Haddi, Natália de S. Ribas, Kárenn Christiny P. Santos, Lucas Felipe P. Tschoeke, Eraldo Lima
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引用次数: 0
Abstract
Mate choice is a fundamental behavior of polyandrous insects, in which individuals prefer mates that exhibit characteristic traits of higher reproductive quality. Tuta absoluta (Meyrick 1917) is the main pest in tomato cultivation and is difficult to control. Pheromones-based strategies; including monitoring, mass trapping and mating disruption; are recommended within integrated pest management of this pest. However, significant losses in tomato production are still reported despite the effective capture of males suggesting a potential failure of the used pheromones-based technologies in the field. As this situation may be related to the sexual behavior of this species, this study aimed to investigate how male’s characteristics, such as body weight, mating status, and age, influence the reproductive behavior of T. absoluta females and thus understanding the reported efficacy losses. First, we conducted a set of tests in which females were allowed to choose between males of different weights, mating status, and age. The effects of mating with males presenting the most contrasting characteristics on the females, reproductive outputs and longevity were assessed. Our results show that females of T. absoluta prefer males with higher reproductive quality (young, virgin and heavy) and that the male’s body weight had a direct influence on the increased longevity and reproductive performance of females. Understanding the reproductive success of these insects can help develop more effective control technologies to better reduce losses in tomato production caused by this pest.
期刊介绍:
Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology.
Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods.
Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.