{"title":"Effects of semiochemical pre-feeding, physiological state, and weather on the response of Bactrocera dorsalis to methyl eugenol baited traps","authors":"","doi":"10.1016/j.cropro.2024.107015","DOIUrl":null,"url":null,"abstract":"<div><div>Plant-derived phenylpropanoids are semiochemicals that are often highly attractive to <em>Bactrocera</em> (Diptera: Tephritidae) males. One of these semiochemicals, methyl eugenol (ME), is used in the male annihilation technique (MAT) for the management of <em>B. dorsalis</em> (Hendel), a destructive horticultural pest. It is not normally viable to simultaneously implement MAT with the sterile insect technique (SIT), as released sterile males are attracted to MAT devices. However, prior semiochemical exposure can reduce the later response of <em>Bactrocera</em> males to the same or another semiochemical, which may allow the synchronous application of MAT and SIT. We determined how the interaction between semiochemical pre-feeding, weather, and fly physiology impacted the response of male <em>B. dorsalis</em> to ME baited traps. Response by a known number of males in field cages was determined in relation to temperature, relative humidity, semiochemical pre-feeding (ME, eugenol, or none), diet (protein supplemented and protein deprived) and age (4, 10 and 20 days old). Semiochemical pre-feeding of both ME and eugenol equally decreased the response of males that were 10 days old, or older, to ME baited traps. Adult diet had no effect on the response of males to ME baited traps. Response improved as temperature and relative humidity increased. These results highlight the feasibility of synchronous MAT-SIT programmes targeting <em>B. dorsalis</em> and the viability of continued protein supplementation of sterile males. We show that eugenol is an alternative to ME for suppression of male <em>B. dorsalis</em> response to MAT devices and that weather conditions significantly affect the variability and reliability of abundance estimates from trap captures.</div></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crop Protection","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0261219424004435","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Plant-derived phenylpropanoids are semiochemicals that are often highly attractive to Bactrocera (Diptera: Tephritidae) males. One of these semiochemicals, methyl eugenol (ME), is used in the male annihilation technique (MAT) for the management of B. dorsalis (Hendel), a destructive horticultural pest. It is not normally viable to simultaneously implement MAT with the sterile insect technique (SIT), as released sterile males are attracted to MAT devices. However, prior semiochemical exposure can reduce the later response of Bactrocera males to the same or another semiochemical, which may allow the synchronous application of MAT and SIT. We determined how the interaction between semiochemical pre-feeding, weather, and fly physiology impacted the response of male B. dorsalis to ME baited traps. Response by a known number of males in field cages was determined in relation to temperature, relative humidity, semiochemical pre-feeding (ME, eugenol, or none), diet (protein supplemented and protein deprived) and age (4, 10 and 20 days old). Semiochemical pre-feeding of both ME and eugenol equally decreased the response of males that were 10 days old, or older, to ME baited traps. Adult diet had no effect on the response of males to ME baited traps. Response improved as temperature and relative humidity increased. These results highlight the feasibility of synchronous MAT-SIT programmes targeting B. dorsalis and the viability of continued protein supplementation of sterile males. We show that eugenol is an alternative to ME for suppression of male B. dorsalis response to MAT devices and that weather conditions significantly affect the variability and reliability of abundance estimates from trap captures.
植物提取的苯丙酮类是一种半化学物质,通常对双翅目(双翅目:Tephritidae)雄虫具有很强的吸引力。其中一种半化学物质甲基丁香酚(ME)被用于雄虫歼灭技术(MAT),以控制破坏性园艺害虫 B. dorsalis (Hendel)。由于释放的不育雄虫会被歼灭雄虫技术装置吸引,因此通常无法同时实施歼灭雄虫技术和昆虫不育技术(SIT)。不过,事先接触半化学物质会降低雄性芽胞虫对同一种或另一种半化学物质的反应,从而使 MAT 和 SIT 的应用同步进行。我们确定了半化学物质预喂食、天气和苍蝇生理机能之间的相互作用如何影响雄性背甲双壳虫对 ME 诱饵诱捕器的反应。田间笼子中已知数量雄蝇的反应与温度、相对湿度、半化学预喂食(ME、丁香酚或无)、饮食(补充蛋白质和缺乏蛋白质)和年龄(4、10 和 20 天)有关。预喂 ME 和丁香酚的半化学物质同样降低了 10 天大或更大的雄性对 ME 诱饵诱捕器的反应。成虫饮食对雄性对 ME 诱饵诱捕器的反应没有影响。随着温度和相对湿度的升高,雄性对ME诱捕器的反应也会提高。这些结果凸显了针对背腹扁虱的同步 MAT-SIT 计划的可行性,以及对不育雄虫持续补充蛋白质的可行性。我们的研究表明,丁香酚是抑制雄性背带蝠对 MAT 装置反应的一种替代 ME 的方法,而且天气条件会显著影响诱捕器捕获量估计值的可变性和可靠性。
期刊介绍:
The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics:
-Abiotic damage-
Agronomic control methods-
Assessment of pest and disease damage-
Molecular methods for the detection and assessment of pests and diseases-
Biological control-
Biorational pesticides-
Control of animal pests of world crops-
Control of diseases of crop plants caused by microorganisms-
Control of weeds and integrated management-
Economic considerations-
Effects of plant growth regulators-
Environmental benefits of reduced pesticide use-
Environmental effects of pesticides-
Epidemiology of pests and diseases in relation to control-
GM Crops, and genetic engineering applications-
Importance and control of postharvest crop losses-
Integrated control-
Interrelationships and compatibility among different control strategies-
Invasive species as they relate to implications for crop protection-
Pesticide application methods-
Pest management-
Phytobiomes for pest and disease control-
Resistance management-
Sampling and monitoring schemes for diseases, nematodes, pests and weeds.