1.THE EFFECT OF TEMPERATURE AND RELATIVE HUMIDITY ON THE GROWTH AND DEVELOPMENT OF RHYZOPERTHA DOMINICA FAB
温湿度对谷蠹(Rhyzopertha dominica)生长发育的影响
2.The phosphine resistance of 26 strains in 4 species of stored grain pests,Rhyzopertha dominica Fbricius,Tribolium castaneum(Herbst),Cryptolestes ferrugineus(Stephens) and C. turcicus(Grouville),which were collected in China during 2000～2004,were detected with the method recommended by FAO and knockdown method.
采用联合国粮农组织(FAO)推荐的磷化氢(PH3)抗药性测定方法和击倒试验方法,测定了谷蠹Rhyzopertha dominica(Fbricius)、赤拟谷盗Tribolium castaneum(Herbst)、锈赤扁谷盗Cryp-tolestes ferrugineus(Stephens)和土耳其扁谷盗C.
3.In this paper we reported the bioactivities of ethanol extracts from 20 medicinal plants against Rhizopertha dominica (Fab.)
采用药膜法和滤纸药膜选择法,分别研究了20种药用植物乙醇提取物对谷蠹Rhizopertha dominica(Fab.)
4.fruit were tested for their insecticidal activities against Sitophilus zeamais(Motschulsky),Rhizopertha dominica(Fabricius) and Oryzaephilus surinamensis(L.)
)4种溶剂无水乙醇、丙酮、乙酸乙酯、石油醚提取物对玉米象Sitophilus zeamais(Motschulsky)、谷蠹Rhizopertha dominica(Fabricius)、锯谷盗Oryzaephilus surinamensis(L.)
5.dominica were surveyed under different temperature and relative humidity with whole wheat flour. The results indicated that, 1. the temperature range of R. dominica development is between 18℃-38℃ and the most suitable range is between 32℃-36℃.
本试验通过全麦粉饲养,观察了谷蠹在不同温、湿度条件下的生物学习性和个体生态学特征,结果表明:1、谷蠹的发育温区为18-38℃,32-36℃为最适温度.
6.Since last week, Hurricane Dean has been blamed for at least eight damps deaths in Haiti*, the Dominica Republic and the island of Dominica.
上周以来，海地，多米尼加及多米尼加群岛至少有8人因迪安飓风丧生。
7.Using chlorpyrifos-methyl,the LD50 of Sitophilus zeamais(Motschulsky)was 0.00037mg/cm2,and that of Rhyzopertha dominica (Fab.) was 0.00175mg/cm2.In wheat,to ensure the mortality above of 99%,for Sitophilus zeamais (Motschulsky) and Rhyzopertha dominica (Fab.)
甲基毒死蜱对玉米象LD5 0为 0 .0 0 0 37mg/cm2 ,对谷蠹为 0 .0 0 175mg/cm2 。
8.The CO?2 gas density was 25%～35%, Rhizoptha Dominica Fabricius will be dead in 72 h and Sitophilus Oryzae Linnaeu will be dead in 48 h.
CO2气体浓度为25%~35%; 谷蠹杀虫保持时间为72h以上;
9.Under the conditions of -6.7℃/24h,the rate of death of Rhizopertha dominica was 75.8% and the rate of death of Sitophilus zeamais has no obvious increase.
对用3＃菌株处理的谷蠹和玉米象进行了延长冷冻时间试验，在－6．7℃，冷冻时间延长至24h，谷蠹的死亡率高达75．8％，玉米象死亡率无明显增加。
10.Since last week, Hurricane Dean has been blamed for at least eight deaths in Haiti, the Dominican Republic and the island of Dominica.
上周开始，飓风迪恩已经在多美尼亚共和国以及多美尼亚群岛的海地造成18人死亡。
