| 1. | Studies on the experimental population parameters of eotetranychus pruni oudemans
李始叶螨实验种群参数的研究 |
| 2. | Experimental population ecology of carcelia matsukarehae shima diptera : tachinidae
松毛虫狭颊寄蝇实验种群生态学研究 |
| 3. | Study on density - dependent effects of the experimental population of panonychus ulmi
苹果全爪螨实验种群的密度效应研究 |
| 4. | The influence of temperature and host plants on the experimental population of aphis gossypii glover
温度和寄主植物对瓜蚜实验种群增长的影响 |
| 5. | Study on density - dependent effects of the experimental population of tetranychus urticae koch acari : tetranychidae
二斑叶螨的实验种群密度效应研究 |
| 6. | Density - dependent effects of the experimental population of spider mite schizotetranychus bambusae reck acari tetranychidae
竹裂爪螨实验种群密度效应研究 |
| 7. | Development , growth , survivor and reproduction of the experimental populations of chironomus kiiensis were observed at 18 , 22 , 26 , 30 and 34 respectively
在18 、 22 、 26 、 30和34五个恒定温度下,研究了温度对花翅摇蚊的生长发育、存活及繁殖的影响。 |
| 8. | The sulfide also has toxic effect on u . unicinctus . the time that experimental populations reach 50 % mortality shortens as the sulfide concentration increasing . and the body color changes to dark
同时硫化物对单环刺?有显著的毒性作用， ?虫的半数致死时间随硫化物浓度的升高而缩短，体色亦逐渐变深。 |
| 9. | In this paper , the resistance of sweet corn varieties to asian corn borer ( acb ) ( ostrinia nubilalis ) were evaluated by means of host experimental population life table and natural population life table ; the order of their resistibility is as follows : s2 > y3 > h1 > y1 > c20
摘要利用亚洲玉米螟实验种群生命表和自然种群生命表方法评价甜玉米品种对亚洲玉米螟的抗虫性，结果得出亚洲玉米螟对不同甜玉米品种的抗性大小依次为：穗甜2号>奥甜2号>华1 >奥甜1号>超甜20 。 |
