| 摘要: |
| 棉蚜虫在花椒上繁殖6～8代,在棉田发生18代。以后又在花椒上繁殖2代,全年发生23～25代,每代平均23.7天。一头棉蚜最长产仔期68天,一生最大产仔量为185头,寿命最长87天;一头成蚜一天最多产仔22头,不同棉蚜寄主,其糖、氮含量比例不同,棉蚜适宜不同比例范围。棉蚜多种“寄主”不是同等重要。 |
| 关键词: 棉蚜,年生活周期,寄主营养 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| THE RELATIONSHIP BETWEEN THE YEARLY LIFE CYCLE AND HOST NUTRIENTS OF Aphis gossypii Clover |
|
Zhang Kebin Liu Huixia Wang Lingli
|
| Abstract: |
| Cotton aphids can reproduce 6-8 generations parasitizing in Chinese prickly ash plants,and 18 generations parasitizing in cotton plants,and then,2 23.7 days on generations parasitizing in Chinese prickly ash plants again,with each generation of the average in a year,thus,totalling 23-25 generations.It was recorded from the field observation that one cotton aphid with the longest life span of 87 days mighthave the 68 days of bearing period at most to produce 185 individuals atmaximum in its lifetime,and that an adult cotton aphid could also produce 22 individuals at most just in one day.The different host plants may have different ratios of sugar and nitrogen contents so that cotton aphids can be adaptable to the different range of the ratios.Thus,the multiple host plants parasitized by cotton aphids are not equally important. |
| Key words: Aphis gossypii Glover,yearly fife cycle,host nutrients, |
