When given all four B. tabaci instars simultaneously, E. bimaculata decreased the parasitization on the 1st and 2nd instar nymphs but increased the parasitization on the 3rd and 4th instar immatures;
在4个期若
同时存在时,双斑恩蚜小蜂会明显增加
3
4
若
的产卵寄生,降低
1
2
若
的寄生;