亚洲玉米螟为害程度与产量损失研究  

Studies on the damage degree and yield loss by Asian corn borer

作　　者：王志春[1] 钱海涛[1] 董辉[1] 王军辉[1] 王振营[2] 丛斌[1] 

机构地区：[1]沈阳农业大学植物保护学院,沈阳110161 [2]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100094

出　　处：《植物保护》2008年第1期112-115,共4页Plant Protection

基　　金：国家科技支撑计划(2006BAD08A06);农业部2006年财政专项资助

摘　　要：在春玉米上人工模拟亚洲玉米螟自然发生情况,玉米螟为害主要影响单穗净重、百粒重。结果表明,不同品种、不同生育期接虫和不同接虫量对产量的影响不同。沈单16号玉米1代接虫为害最重,产量损失为17.72%;丹玉39号玉米1、2代复合接虫为害最重为14.61%。接卵0、0.5、1、2、4块/株之间单穗净重差异显著。The damage caused by the Asian corn borer, Ostrinia furnacalis （Guenee） was simulated by artificial infestations on spring corn during the whorl and silking stage, respectively. The damage by Asian corn borer on yield mainly affected the net weight per ear and per hundred-seed weight. The results showed that the yield losses caused by Asian corn borer differed in corn hybrids, development stages of corn and the numbers of egg masses infested. The yield loss in Shendan No. 16 was the heaviest （17.22%）, when the corn plants were infested at whorl stage. For Danyu No. 39, the yield loss was the heaviest （14.61%）, when infested both at whorl and silking stages. Significant differences in weight per ear were observed among different numbers of egg masses infested （0,0.5,1,2 and 4 egg masses/plant）.

关 键 词：亚洲玉米螟 为害 产量损失 人工模拟 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]