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首页> 外文期刊>Spanish Journal of Agricultural Research >Phenological asynchrony between the fruit fly Anastrepha fraterculus and early maturing peach cultivars could contribute to pesticide use reduction
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Phenological asynchrony between the fruit fly Anastrepha fraterculus and early maturing peach cultivars could contribute to pesticide use reduction

机译：果蝇黄An与早熟桃品种之间的物候不同步可能有助于减少农药使用

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Phenological asynchrony between fruit crops and pests consists of a discrepancy between the period of fruit susceptibility and that of high pest abundance in the orchards. Therefore, it may be used for reducing pesticide applications. We assayed the potential phenological asynchrony between peach cultivars with different growing cycles and the Anastrepha fraterculus (Diptera: Tephritidae). To this end, we assessed fruit infestation by A. fraterculus at harvest for one growing season (2012-2013) in early, average and late maturing peach cultivars. Moreover, the fruit infestation was checked for non-cultivated native and non-cultivated wild exotic plant hosts around the peach orchards of the experimental area during 2013 and 2014. In addition, we monitored A. fraterculus abundance weekly during three consecutive growing seasons, S1 (2011-2012), S2 (2012-2013) and S3 (2013-2014), to assess phenological asynchrony between peach cultivars and A. fraterculus . In particular, we checked the influence of meteorological variables on A. fraterculus abundance, and tested if A. fraterculus abundance at the time when fruits are susceptible differed among cultivars. Eventually we discuss the possibility of sustainable management of peach in southern Brazil. This study constitutes a first assessment of the periods of crop vulnerability and pest presence in peach orchards in South of Brazil and provides necessary information for taking advantage of the phenological asynchrony phenomenon for this pest-crop association.
机译：果农作物与害虫之间的物候非同步性包括果园易感期与果园高虫害丰度期之间的差异。因此，它可用于减少农药的使用。我们分析了具有不同生长周期的桃品种与黄曲霉（Diastera：Tephritidae）之间潜在的物候异步性。为此，我们评估了早熟，中熟和晚熟桃品种在一个生长季节（2012-2013年）收获时黄曲霉的果实侵染情况。此外，在2013年和2014年期间，检查了该试验区桃园周围未栽培的本地和未栽培的野生外来植物宿主的水果侵染情况。此外，我们在连续三个生长季节S1中每周监测黄菜的丰度。 （2011-2012），S2（2012-2013）和S3（2013-2014），以评估桃品种和黄曲霉之间的物候异步。尤其是，我们检查了气象变量对苦果曲霉丰度的影响，并测试了当水果易感时，苦果曲霉的丰度是否因品种而异。最后，我们讨论了巴西南部桃子可持续管理的可能性。这项研究是对巴西南部桃园的作物脆弱性时期和有害生物存在时期的首次评估，并为利用该有害生物与作物之间的物候异步现象提供了必要的信息。

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