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首页> 外文OA文献 >Flutuação populacional e previsão de gerações de Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) em pessegueiro, Prunus persica (Linnaeus) Batsch - DOI: 10.4025/actasciagron.v28i3.963
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Flutuação populacional e previsão de gerações de Grapholita molesta (Busck, 1916) (Lepidoptera: Tortricidae) em pessegueiro, Prunus persica (Linnaeus) Batsch - DOI: 10.4025/actasciagron.v28i3.963

机译：桃，李桃（Linnaeus）Batsch-DOI：10.4025 / actasciagron.v28i3.963中桃的Grapholita molesta（Busck，1916）（鳞翅目：Tortricidae）的种群波动和世代预测

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The oriental fruit moth, Grapholita molesta (Busck, 1916), is spread around the world and is considered an important pest on peach, Prunus persica (Linnaeus) Batsch. This work was carried out at a commercial peach orchard located in Taiúva, State of São Paulo, Brazil, from 1997 to 2003, aiming to obtain the population fluctuation of adults of G. molesta and to relate it to meteorological factors. This study also aimed to determine an appropriate time as a biofix to predict the occurrence of generations of G. molesta using a degree-day model. Adults of the oriental fruit moth and insect predators were sampled by plastic bottle traps with peach juice and yellow sticky traps, respectively. The influence of abiotic and biotic factors was evaluated by simple correlation analysis. The highest population peaks of G. molesta were observed in May, July and October. The correlations suggest that low environmental humidity might have been a factor of mortality to G. molesta. A negative impact on natural enemies caused by high number of insecticide applications may have been responsible for the high pest density from 1998 to 1999. The date that peach trees developed vegetative and flower buds appeared to be suitable to initiate the degree-day accumulation to predict generations of G. molesta. These results should help the implementation of programs based on predicting population peaks of adults aiming insecticide application. Before field implementation, final validation of the degree-day model is required in multiple locations.
机译：东方果蛾Grapholita molesta（Busck，1916）遍布世界各地，被认为是桃李（Prunus persica（Linnaeus）Batsch）上的重要害虫。这项工作是从1997年至2003年在位于巴西圣保罗州Taiúva的一个商业桃园进行的，目的是获得G. molesta成虫的种群波动并将其与气象因素联系起来。这项研究还旨在确定一个合适的时间作为生物固定剂，以使用度日模型预测predict蛾的发生。分别用桃汁和黄色粘性诱捕器通过塑料瓶诱捕器对东方果蛾和昆虫捕食者的成虫进行采样。通过简单的相关分析评估非生物和生物因素的影响。在5月，7月和10月观察到了G. molesta的最高种群高峰。相关性表明低的环境湿度可能是导致田间牙菌死亡的因素。 1998年至1999年，高害虫密度可能是由于大量杀虫剂引起的对天敌的负面影响。桃树生长为植物和花蕾的日期似乎适合启动度日累积以预测G. molesta的后代。这些结果应有助于基于预测杀虫剂使用的成年人口高峰期的方案的实施。在实地实施之前，需要在多个地点对学位日模型进行最终验证。

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