Broadley Hannah J, Sipolski Steven J, Pitt Danielle B, Hoelmer Kim A, Wang Xiao-Yi, Cao Liang-Ming, Tewksbury Lisa A, Hagerty Tyler J, Bartlett Charles R, Russell Alana D, Wu Yunke, Davis Shannon C, Kaser Joe M, Elkinton Joseph S, Gould Juli R
Forest Pest Methods Laboratory, United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine, Science and Technology, Buzzards Bay, MA, United States.
Department of Environmental Conservation, University of Massachusetts, Amherst, MA, United States.
Front Insect Sci. 2023 Apr 18;3:1154697. doi: 10.3389/finsc.2023.1154697. eCollection 2023.
The spotted lanternfly, (Hemiptera: Fulgoridae), an invasive planthopper discovered in Pennsylvania, U.S. in 2014, has spread to many surrounding states despite quarantines and control efforts, and further spread is anticipated. A classical (importation) biological control program would contribute to the long-term management of in the eastern U.S. In its native range of China, (Hymenoptera: Eupelmidae), an egg parasitoid, causes significant mortality. consists of multiple haplotypes that differ in important biological parameters. To delineate the physiological host range of Haplotype C, we completed no-choice and choice testing. No-choice testing of non-target eggs from 36 insect species spanning six orders and 18 families showed that physiologically this haplotype of can develop in a variety of host species eggs from the families Coreidae, Fulgoridae, Pentatomidae, and Saturniidae. Ten of the 16 species that were attacked in the no-choice tests were also attacked in the choice tests. The production of progeny on non-target egg masses was significantly lower than on the controls ( egg masses run simultaneously) in the no-choice and choice tests. For the non-target species that were attacked and resulted in female wasp progeny, these females were able to produce their own progeny at the same rate as control females that were reared from the eggs. Larger host eggs corresponded to an increased female-biased sex ratio of the progeny, suggesting that gravid females select them for fertilized eggs. Results from these studies suggest that Haplotype C prefers to parasitize egg masses but is capable of developing in some non-target species.
斑衣蜡蝉（半翅目：蜡蝉科）是2014年在美国宾夕法尼亚州发现的一种入侵性飞虱，尽管实施了检疫和防治措施，它仍已扩散到许多周边州，预计还会进一步扩散。一项经典（引进）生物防治计划将有助于美国东部对斑衣蜡蝉的长期管理。在其原产国中国，一种卵寄生蜂——平腹小蜂（膜翅目：旋小蜂科）会造成显著的死亡率。平腹小蜂由多个在重要生物学参数上存在差异的单倍型组成。为了确定C单倍型平腹小蜂的生理寄主范围，我们完成了无选择和有选择测试。对来自六个目、18个科的36种昆虫的非靶标卵进行的无选择测试表明，从生理角度来看，这种平腹小蜂单倍型能够在缘蝽科、蜡蝉科、蝽科和天蚕蛾科的多种寄主物种的卵中发育。在无选择测试中受到攻击的16个物种中有10个在有选择测试中也受到了攻击。在无选择和有选择测试中，非靶标卵块上的子代产量显著低于对照组（同时进行的斑衣蜡蝉卵块测试）。对于那些受到攻击并产生雌蜂子代的非靶标物种，这些雌蜂能够以与从斑衣蜡蝉卵中饲养的对照雌蜂相同的速度产生自己的子代。较大的寄主卵对应着子代中雌性偏向性更高的性别比例，这表明怀卵雌蜂会选择它们来产受精卵。这些研究结果表明，C单倍型平腹小蜂更喜欢寄生斑衣蜡蝉的卵块，但也能够在一些非靶标物种中发育。
