1) the third generation of Chilo supperssalis
3代二化螟
1.
The reasons of the outbreak of the third generation of Chilo supperssalis in Wenzhou in 1998 are analysed.
第 3代二化螟大发生是由防治第 2代时失去最佳防治适期 ,而使其绝大部分幼虫存活下来 ,成为第 3代有效虫源所致 ;二是发生时间早 ;三是早稻收割期天气差 ,使 2代向 3代的转化率提高。
2) the first generation of rice stem borer
一代二化螟
1.
The correlation between egg populations of the first generation of rice stem borer and leaf age of rice seedlings in rice nursery beds and its applications;
水稻秧池一代二化螟卵量与秧苗叶龄关系及其应用
3) first generation Chilo suppressalis (Walker)
水稻一代二化螟
1.
Better controlling effect of Bacillus thuringiensis strain S387 mutant was achieved on first generation Chilo suppressalis (Walker) was by Bt applying S387 at the egg hatching peak of seedling stage and transplanting stage once,respectively.
用苏云金杆菌S387防治水稻一代二化螟 ,在秧田卵孵高峰期和大田枯鞘期卵孵高峰各用药 1次 (375 0mL·hm-2 ) ,具有较好的防治效果 ,枯心率下降 83 83% ,残留活虫数下降 93 75 % 。
4) Chilo suppressalis Walker
二化螟
1.
Mensuration and Analysis of Insecticide Resistance of Chilo suppressalis Walker and Tryporyza incertulas Walker;
湖北省水稻二化螟和三化螟的抗药性监测
2.
Resistance of Rice Stem Borer(Chilo suppressalis Walker) to Insecticides in Lianyungang City;
连云港市水稻二化螟抗药性监测
3.
Sublethal effect of fipronil on resistant and susceptible rice stem borer (Chilo suppressalis Walker);
氟虫腈对二化螟抗、感种群的亚致死效应
5) Chilo suppressalis
二化螟
1.
Application of Gray-Markov s Chain Theory in Prediction for Incidence of Chilo suppressalis;
灰色-马尔柯夫链理论在水稻二化螟预测上的应用
2.
Research progress in host selection and underlying mechanisms,and factors affecting population dynamics of Chilo suppressalis;
二化螟寄主选择行为与种群消长机制的研究进展
3.
Laboratory Screening of Alternative Insecticides for Highly Toxic Insecticides Against the Striped Stem Borer (Chilo suppressalis) on Rice;
防治水稻二化螟的高毒农药替代药剂的室内筛选
6) Chilo suppressalis(Walker)
二化螟
1.
Advances in the research on cold hardiness of the rice borer [Chilo suppressalis(Walker)];
水稻二化螟耐寒性研究进展
2.
Occuring Characteristics and Controlling Countermeasures of Chilo suppressalis(Walker)in Jintan Region
金坛地区二化螟发生特点与防治对策
3.
Effectiveness and Economic Benefit of Three Measures on Control Chilo suppressalis(Walker)
3种二化螟防控措施的效果及效益分析
补充资料：二化螟
| 二化螟 Chilo suppressalis；striped rice borer 螟蛾科昆虫的一种。俗名钻心虫，蛀心虫、蛀秆虫等 。是水稻的劲敌。成虫翅展雄约20毫米，雌25～28毫米。头部淡灰褐色，额白色至烟色，圆形，顶端尖。胸部和翅基片白色至灰白，并带褐色。前翅黄褐至暗褐色，中室先端有紫黑斑点，中室下方有3个斑排成斜线。前翅外缘有7个黑点 。后翅白色，靠近翅外缘稍带褐色。雌虫体色比雄虫稍淡，前翅为黄褐色，后翅为白色。二化螟幼虫为害禾本科植物，也取食十字花科蔬菜和各种杂草。二化螟成虫白天潜伏于稻株下部，夜间飞舞。大多在午夜以前交配。雌蛾交配后，间隔一日即开始产卵。
二化螟以幼虫越冬，主要在稻蔸内。越冬期如遇浸水则易死亡。二化螟每年发生的代数因纬度而异。在中国黑龙江省每年发生1代。江苏、浙江、福建、安徽、四川、贵州每年发生2～4代，海南每年发生5代。除纬度以外，海拔高度也影响发生代数。自从水稻种植改革以后，由于单季稻变成多季交错播种，相应给二化螟提供了生活有利的充足食料，发生代数与数量均有变化。由于采取各种措施、使用药剂、实行农业防治，已能控制螟害。 |
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参考词条