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采用选择性试验与非选择性试验两种方法,对肯尼亚的一种新记录的赤眼蜂Trichogramma sp.nr. mwanzai作了寄主嗜好性的初步观察研究。结果表明:该蜂对玉米禾螟、Busseola fusca和Eldana succhrina的卵均能寄生,但最喜欢玉米禾螟的卵。对家蚕卵不能寄生。在自然条件下也不能寄生Busseola fusoa产在叶鞘下的卵。在非选择性试验中,该蜂在玉米禾螟卵和粉螟卵上的单雌产子数与子代蜂雌雄性比差异均不显著。
Using a selective test and a non-selective test, Trichogramma sp. Nr. Mwanzai, a newly recorded Trichogramma in Kenya, was initially investigated for host preference. The results showed that the bees parasitized the eggs of the corn borer, Busseola fusca and Eldana succhrina, but most preferred the eggs of the corn borer. Silkworm eggs can not be parasitic. Under natural conditions, parasites of Busseola fusoa can not parasitize eggs under the sheath. In the non-selective test, there was no significant difference in the number of single-fecundity and the male-female ratio of the bee on the corn borer eggs and the meal borers.