类别
时间 | 调查棉田距离县城的距离(Km) | |||||||
10 | 20 | 30 | 40 | |||||
有虫株率(%) | 百株成虫数(只) | 有虫株率(%) | 百株成虫数(只) | 有虫株率(%) | 百株成虫数(只) | 有虫株率(%) | 百株成虫数(只) | |
6.15 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
30 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
7.5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
10 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
15 | 2 | 2 | 0 | 0 | 1 | 1 | 1 | 1 |
20 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
25 | 4 | 4 | 3 | 3 | 1 | 1 | 2 | 2 |
30 | 3 | 3 | 2 | 2 | 0 | 0 | 0 | 0 |
8.5 | 19 | 26 | 8 | 12 | 6 | 8 | 0 | 0 |
10 | 34 | 51 | 31 | 51 | 22 | 31 | 25 | 36 |
15 | 32 | 48 | 38 | 57 | 30 | 42 | 24 | 23 |
20 | 39 | 56 | 49 | 74 | 39 | 46 | 26 | 29 |
25 | 61 | 69 | 58 | 67 | 57 | 68 | 25 | 31 |
30 | 95 | 142 | 76 | 83 | 83 | 123 | 38 | 40 |
9.5 | 100 | 390 | 90 | 112 | 85 | 121 | 40 | 41 |
10 | 100 | 787 | 96 | 130 | 93 | 125 | 52 | 39 |
15 | 100 | 1466 | 97 | 145 | 94 | 133 | 50 | 68 |
20 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
25 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |