Effects of Endophyte Colonization of Vicia faba (Fabaceae) Plants on the Life–History of Leafminer Parasitoids Phaedrotoma scabriventris (Hymenoptera: Braconidae) and Diglyphus isaea (Hymenoptera: Eulophidae)
نویسندگان
چکیده
Effects of the fungal endophytes Beauveria bassiana (isolates ICIPE 279, G1LU3, S4SU1) and Hypocrea lixii (isolate F3ST1) on the life-history of Phaedrotoma scabriventris and Diglyphus isaea, parasitoids of the pea leafminer Liriomyza huidobrensis, were studied in the laboratory. Parasitoids were allowed to parasitize 2(nd) and 3(rd) instar L. huidobrensis larvae reared on endophytically-inoculated faba bean, Vicia faba. In the control, parasitoids were reared on non-inoculated host plants. Parasitism, pupation, adult emergence and survival were recorded. No significant difference was observed between the control and the endophyte-inoculated plants in terms of parasitism rates of P. scabriventris (p = 0.68) and D. isaea (p = 0.45) and adult' survival times (p = 0.06). The survival period of the F1 progeny of P. scabriventris was reduced (p<0.0001) in B. bassiana S4SU1 to 28 days as compared to more than 40 days for B. bassiana G1LU3, ICIPE 279 and H. lixii F3ST1. However, no significant difference (p = 0.54) was observed in the survival times of the F1 progeny of D. isaea. This study has demonstrated that together, endophytes and parasitoids have beneficial effects in L. huidobrensis population suppression.
منابع مشابه
Record of Diglyphus walker (Hymenoptera: Eulophidae) species in Brazil.
Leafminers (Diptera: Agromyzidae) are pests of various crops, mainly in greenhouses, and have Diglyphus spp. as important leafminer larval parasitoids. Until recently, only Diglyphus insularis (Gahan) had been reported in Brazil. In here we report the first records of Diglyphus begini (Ashmead), D. intermedius (Girault) and D. isaea (Walker) in Brazil. These parasitoids were found parasitizing ...
متن کاملTemperature-Dependent Development of Two Neotropical Parasitoids of Liriomyza sativae (Diptera: Agromyzidae)
We studied two species of neotropical parasitoids that occur naturally in northeastern Brazil and are associated with Liriomyza sativae (Blanchard): Opius (Gastrosema) scabriventris Nixon (Hymenoptera: Braconidae) and Chrysocharis vonones (Walker) (Hymenoptera: Eulophidae). We evaluated the influence of seven temperatures on the duration of the egg-adult period and on the survivorship of the im...
متن کاملNote referring to the description of Diglyphus scapus (Hymenoptera: Eulophidae)
در مقالهی Hesami et al. (2006) دربارهی معرفی گونههایی از زنبورهای خانوادهی Eulophidae در ایران، گونهی جدیدی با عنوان Diglyphus scapus Yefremova معرفی و توصیف گردید که بدون ذکر محل نگهداری هولوتیپ منتشر شد. طبق بند 2-4-16 کد بینالمللی نامگذاری جانوری (ICZN, 1999)، برای این که نام علمی یک جانور توصیف شده available محسوب گردد، ضروری است محل نگهداری هولوتیپ به طور روشن بیان گردد. ازاینرو...
متن کاملRole of leaf mines in host location and pupation in Diglyphus isaea (Hymenoptera: Eulophidae)
Diglyphus isaea Walker (Hymenoptera: Eulophidae) is an important ectoparasitic wasp of many leaf miners. Ability of D. isaea to find hosts placed in artificial mines and for its larvae to pupate when the larva is not in a mine was studied. Artificial mines consisted of slits cut in index card sandwiched between two cover slips. Almost 80% of the neonate larvae of D. isaea located host larvae in...
متن کاملارزیابی کارایی زنبورDiglyphus isaea (Hymenoptera: Eulophidae) (Miglyphus®) در کنترل بیولوژیک مگس مینوز برگ سبزی Liriomyza sativae (Diptera: Agromyzidae) روی خیـار گلخانهای
مگس مینوز سبزی و صیفیLiriomyza sativae) )، از آفات مهم گلخانههای ایران میباشد. مطالعهای به منظور بررسی میزان کارایی سوش وارداتی زنبور Diglyphus isaea (Miglphus®) در کنترل مگس مینوز برگ سبزی روی خیار گلخانهای در ورامین، انجام گرفت. میزان کارایی بر اساس مقایسه روند تغییرات و میانگین تعداد دالانهای حاوی لارو زنده، لارو مرده و درصد پارازیتیسم، در دو تیمار رهاسازی زنبور با نسبت 25/0 عدد زنبور ...
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