Cnaphalocrocis medinalis is a key lepidopteran pest of rice. However, little is known about the nutritional requirements of the adult or the effects of adult-derived nutrients on reproduction. The aim of the present study was to evaluate the effects of carbohydrates and amino acids on the reproductive and demographic parameters of C. medinalis. Different feeding solutions significantly influenced adult survival and reproduction. All the sources of carbohydrates used in the treatments (fructose, glucose, and sucrose) were sufficient to increase adult longevity and fecundity, and benefited the development of ovaries in the adult stage. The positive impact of carbohydrates on lifetime fecundity was due to the prolonged oviposition period and the increased daily fecundity. The intrinsic rate of increase (r_m) of C. medinalis increased from 0.103 in waterfed individuals to approximately 0.138 when adults were fed with solutions containing carbohydrates. In contrast, amino acid intake by adult insects exhibited no effect on the longevity, fecundity, ovarian development or population growth, even showing an impact of decreasing longevity of females. As nectar secreted by the flowering plant is generally rich in sugars, the potential effects of nectar on the adults of C. medinalis and other pests have to be considered during the development of biological control by applying flowering plants as a microhabitat and food source for natural enemies in rice fields.

Cnaphalocrocis medinalis是水稻的重要鳞翅目害虫。然而，人们对成人的营养需求或成人衍生的营养素对繁殖的影响知之甚少。本研究的目的是评估碳水化合物和氨基酸对C. medinalis繁殖和人口统计学参数的影响。不同的喂养方案显着影响了成虫的存活和繁殖。治疗中使用的所有碳水化合物来源（果糖、葡萄糖和蔗糖）都足以增加成虫的寿命和繁殖力，并有利于成虫阶段卵巢的发育。碳水化合物对终生繁殖力的积极影响是由于排卵期延长和每日繁殖力增加。C. medinalis的内在增长率 (r _m )当成年人用含有碳水化合物的溶液喂养时，从水喂养个体的 0.103 增加到大约 0.138。相比之下，成虫摄入氨基酸对寿命、繁殖力、卵巢发育或种群增长没有影响，甚至显示出降低雌性寿命的影响。由于开花植物分泌的花蜜一般都含有丰富的糖分，在利用开花植物作为微生境和食物来源进行生物防治的过程中，必须考虑花蜜对C. medinalis成虫和其他害虫的潜在影响。稻田里的敌人。