Abstract: Feeding behaviors of Nilaparvata lugens on a non-host plant, the barnyard grass Echinochloa crus-galli var. oryzicola, and resistant rice Babawee (bph4) were compared by using AC-eletronic monitoring system (EMS). Waveform data obtained by EMS showed that N. lugens usually stopped feeding activities before stylets reach the phloem in barnyard grass which revealed to contain an antifeedant in the non-phloem, whereas feeding was interrupted after stylets reached the phloem in resistant rice. Thus, EMS analysis clearly distinguished two types of resistant plants with different resistant factors against planthopper feeding. EMS analysis of Sogatella furcifera oviposition behavior on the lower part of the leaf sheath of fully-grown rice demonstrated that in most cases the ovipositor was inserted into the plant but pulled out without depositing any eggs. It suggested that oviposition behavior itself was normally induced on the fully-grown rice, but the entire process was not completed due to some deterring factors. Thus, this system is also effective in identifying a disrupted step in the behavioral sequence on a plant resistant to oviposition.

Key words: Nilaparvata lugens, Sogatella furcifera, electronic monitoring system, feeding behavior, oviposition behavior, insect resistantce, Echinochloa crus-galli, rice

摘要： 采用AC型电子记录系统(EMS)对褐飞虱在非寄主植物稗草和具有抗性基因[i]bph4[/i]的水稻品种Babawee上的取食行为进行了比较研究。结果表明，褐飞虱口针到达稗草韧皮部以前停止取食，这揭示了在稗草非韧皮部组织中存在拒食剂。而在抗虫品种上,口针到达韧皮部以后取食行为终止。因此，可以清楚地识别两类具有不同抑制取食抗性因子的抗性植物。分析白背飞虱产卵行为的电子记录表明，在大多数情况下，就旺盛生长的水稻植株的下半部分而言，白背飞虱产卵器插入植物组织中但不产卵。这表明旺盛生长的植株能诱导白背飞虱的产卵行为，但由于某些拒避性因素使整个产卵过程不能完成。因此，这一系统可以有效地识别具有产卵抗性的植物上行为序列中受到破坏的步骤。

关键词: 褐飞虱, 白背飞虱, 电子记录系统, 取食行为, 产卵行为, 抗虫性, 稗草, 水稻