当前位置: X-MOL 学术Insects › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Egg Parasitoids Survey of Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) in Maize and Sorghum in Central Mexico.
Insects ( IF 3 ) Pub Date : 2020-03-01 , DOI: 10.3390/insects11030157
Jannet Jaraleño-Teniente 1 , J Refugio Lomeli-Flores 1 , Esteban Rodríguez-Leyva 1 , Rafael Bujanos-Muñiz 2 , Susana E Rodríguez-Rodríguez 1
Affiliation  

Spodoptera frugiperda (Smith) is the main maize pest in America and was recently detected as an invasive pest in some countries in Asia and Africa. Among its natural enemies presented in Mexico, Trichogramma pretiosum Riley is the only egg parasitoid used in Integrated Pest Management (IPM) programs regardless of its effectiveness. A search for natural enemies of S. frugiperda was then carried out to determine whether this parasitoid has been established, and to detect native egg parasitoids or predators associated with this pest. The sentinel technique (egg masses) was used, and then placed in maize and sorghum fields in the state of Guanajuato, Mexico. Trichogramma atopovirilia Oatman and Platner, an egg parasitoid, and Chelonus insularis Cresson egg-larva parasitoid were recovered from field surveys. Among the natural enemies that preyed on eggs of S. frugiperda, we found mites of the genus Balaustium, and Dermaptera of the genus Doru, both species in great abundance. Laboratory tests were performed to compare the potential parasitism of T. atopovirilia against T. pretiosum. T. atopovirilia obtained 70.14% parasitism while T. pretiosum, 29.23%. In field cages, three doses of the parasitoids were tested. Total parasitism did not exceed 8% in any of the two species, but T. atopovirilia parasitized a greater number of hosts using two and three parasitoids per pest egg. Then, the use of Trichogramma species needs to be reevaluated in biological control programs against S. frugiperda.

中文翻译:

墨西哥中部玉米和高粱中斜纹夜蛾(Smith)(鳞翅目:夜蛾科)的卵寄生虫调查。

Spodoptera frugiperda(Smith)是美国的主要玉米害虫,最近在亚洲和非洲的某些国家被发现为入侵害虫。在墨西哥出现的天敌中,赤眼T(Trichogramma pretiosum Riley)是病虫害综合治理(IPM)计划中唯一使用的寄生卵,无论其有效性如何。然后进行了对Srug frugiperda的天敌的搜索,以确定是否已建立该寄生虫,并检测与该害虫相关的天然卵寄生虫或捕食者。使用了哨兵技术(蛋重),然后将其放置在墨西哥瓜纳华托州的玉米和高粱田里。田间调查中发现了寄生虫卵的赤眼蜂Atopovirilia Oatman和Platner,以及Chelonus insularis Cresson卵幼虫寄生虫。在捕食frugiperda卵的天敌中,我们发现了Balaustium属的螨和Doru属的Dermaptera,这两种物种都非常丰富。进行了实验室测试,以比较拟南芥中拟南芥和拟南芥的寄生性。拟南芥T. atopovirilia获得了70.14%的寄生虫病,而原产T. pretiosum则获得了29.23%的寄生虫病。在野外笼中,测试了三剂寄生虫。在这两个物种中,任何一个物种的总寄生虫率均不超过8%,但是每个害虫卵中的寄生虫T. atopovirilia寄生了更多的寄主。然后,需要在针对S. frugiperda的生物防治计划中重新评估Trichogramma物种的使用。进行了实验室测试,以比较拟南芥对拟南芥的寄生虫。拟南芥T. atopovirilia获得了70.14%的寄生虫感染,而原产T. pretiosum的则为29.23%。在野外笼中,测试了三剂寄生虫。在这两个物种中,任何一个物种的总寄生虫率均不超过8%,但是每个害虫卵中的寄生虫T. atopovirilia寄生了更多的寄主。然后,需要在针对S. frugiperda的生物防治计划中重新评估Trichogramma物种的使用。进行了实验室测试,以比较拟南芥对拟南芥的寄生虫。拟南芥T. atopovirilia获得了70.14%的寄生虫病,而Pretiosiosum获得了29.23%的寄生虫病。在野外笼中,测试了三剂寄生虫。在这两个物种中,任何一个物种的总寄生虫率均不超过8%,但是每个害虫卵中的寄生虫T. atopovirilia寄生了更多的寄主。然后,需要在针对S. frugiperda的生物防治计划中重新评估Trichogramma物种的使用。每个害虫卵中使用2和3种寄生虫,使atopovirilia寄生了更多的宿主。然后,需要在针对S. frugiperda的生物防治计划中重新评估Trichogramma物种的使用。每个害虫卵中使用2和3种寄生虫,使atopovirilia寄生了更多的宿主。然后,需要在针对S. frugiperda的生物防治计划中重新评估Trichogramma物种的使用。
更新日期:2020-04-20
down
wechat
bug