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首页> 外文期刊>Acta Zoologica Mexicana >Population parameters of Spodoptera frugiperda (Smith) (Lep.: Noctuidae) fed on corn and two predominant grasess in Tucuman (Argentina)
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Population parameters of Spodoptera frugiperda (Smith) (Lep.: Noctuidae) fed on corn and two predominant grasess in Tucuman (Argentina)

机译：土库曼（阿根廷）以玉米和两个主要草食为食的食翅夜蛾（Smith）（种群：夜蛾科）的种群参数

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align="justify"> face="verdana" size="2">A comparative laboratory study on population parameters of Spodoptera frugiperda (Smith) (Lep.: Noctuidae) fed on corn (Zea mays L.) and two of the most predominant grasses in Tucuman (Argentina) Guineagrass (Panicum maximum Jacq.) and Bermudagrass (Cynodon dactylon (L.) Pers.) was carried out. The diets used determined changes in diverse parameters such as duration of life cycle, number of larval instars, sex ratio, life expectancy, fertility and/or fecundity. Regarding to the life cycle duration, significant differences among host plants were recorded for the different developmental stages. Females fed on a corn diet showed a fertility of 92.1%, while those breeding on a diet based on Guineagrass showed 96.4% and 99.8% on Bermudagrass. Mean daily egg production ranged within 99.4 (fed on Bermudagrass) and 187.8 (fed on Guineagrass). Total mean egg production also varied with larval diet; maximum value was recorded for females fed on Guineagrass leaves (0 1282.7 ± 38.6 eggs/females). Results suggest that individuals bred on this grasses during final winter could play an important role in FAW population dynamic performance affecting corn crops in Argentina's Norther Region.
机译：align =“ justify”> face =“ verdana” size =“ 2”>以玉米为食的 Spodoptera frugiperda （史密斯）（Lep.：Noctuidae）的种群参数的比较实验室研究（ Zea mays L.）和图库曼（阿根廷）几内亚草（ Panicum maximum Jacq。）和百慕大草（ ＞（L.Pers。）。所使用的饮食决定了各种参数的变化，例如生命周期的持续时间，幼虫龄，性别比，预期寿命，生育力和/或生殖力。关于生命周期的持续时间，记录了不同发育阶段寄主植物之间的显着差异。饲喂玉米饮食的雌性的生育力为92.1％，而以豚鼠为基础饲育的雌性的百慕大的生育力为96.4％和99.8％。平均每日产蛋量在99.4（以百慕达为食）和187.8（以几内亚为食）之间。幼虫日粮的总平均产卵量也有所不同。记录在豚鼠叶片上的雌性的最大值（0 1282.7±38.6个卵/雌性）。结果表明，在最后的冬季在此草上繁殖的个体可能对影响阿根廷北部地区玉米作物的一汽种群动态表现发挥重要作用。

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