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首页> 外文期刊>Acta Horticulturae >The effect of the egg parasitoid Pseudoligosita babylonica on dobas infestation in Doaan, Shichawi and Asid (Hudramout, Yemen).
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The effect of the egg parasitoid Pseudoligosita babylonica on dobas infestation in Doaan, Shichawi and Asid (Hudramout, Yemen).

机译：卵寄生性卵 Pseudoligosita babylonica 对多安，什刹维和阿西德（也门哈德兰特）的dobas侵染的影响。

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摘要

The best and most efficient method of biological control is the use of egg parasitoids, and most species used were from the family Trichogrammatidae, and the name of the dobas egg parasitoid (DEP) in Yemen is [(Pseudoligosita babylonica n. sp. (Hymenoptera: Trichogrammatidae))]. We have followed the existence and the impact of this parasitoid in Hudramout since 2005, we recognized it in 2007 in Gail Al-Halikah, it was identified in France (CIRAD) at the end of 2008 and it turned out to be the same type found in Iraq, which was found also in 2005, during 2008 and 2009. In the four generations of the dobas insect we followed the spread in Douan, Asid and Shichawi. We found that it exists in all villages of these regions. The proportion of parasitism differs from one area to another, significantly at the level of 5% and the percentage of parasitism declined from 23.6% in January 2008 to 2.53% in August 2009 in all the 13 villages in Douan. The heavy rain in October 2008 influenced the parasitism because it washed the honey dew from the leafs which is the mean food of the parasitoid, and in the district of Ridh Gosaiar where there was a clear significant difference between Wadi Asid and Chkawi; it was only 6% in Asid and 17% in Chkawi, which led to its effect on the severity of the injury, accordingly it was in Chkawi 6.5 eggs/leaflet, while it reached to 9.3 in Asid which confirms the clear relationship and positive impact in reducing the injury. The adults of the DEP were present all the time of the dobas egg periods and approximately it moves from the old egg masses to the new for the second generation. It was also noted that the parasitoid was present in all plant heights of different palm trees up to more than 15 meter.
机译：最佳和最有效的生物防治方法是使用卵类寄生虫，使用的大多数物种均来自 Trichogrammatidae 族，也门杜巴斯卵类寄生虫（DEP）的名称为[（< i> Pseudoligosita babylonica n。sp。（ Hymenoptera ： Trichogrammatidae ））]。自2005年以来，我们一直在追踪这种寄生虫在Hudramout的存在和影响，我们在2007年在盖尔·哈利卡（Gail Al-Halikah）确认了这种寄生虫，并于2008年底在法国（CIRAD）对其进行了鉴定，结果发现了相同类型的寄生虫。在2005年，2008年和2009年也发现了伊拉克。在dobas昆虫的四代中，我们遵循了在Douan，Asid和Shichawi的传播。我们发现它存在于这些地区的所有村庄。寄生虫的比例在一个地区之间有所不同，在5％的水平上明显不同，在Douan的所有13个村庄中，寄生虫的比例从2008年1月的23.6％下降到2009年8月的2.53％。 2008年10月的大雨影响了寄生虫病，因为它洗掉了叶子上的蜜露，这是寄生虫的平均食物，在里德·戈赛亚尔（Ridh Gosaiar）地区，瓦迪·阿西德（Wadi Asid）和查卡维（Chkawi）之间存在明显的明显差异。在Asid中只有6％，在Chkawi中只有17％，这导致了其对伤害的严重程度的影响，因此，在Chkawi中，有6.5个鸡蛋/叶片，而在Asid中达到了9.3个鸡蛋，这证实了明确的关系和积极影响在减少伤害。 DEP的成虫在dobas卵期一直存在，大约在第二代中从旧卵转移到新卵。还应注意，在不超过15米的不同棕榈树的所有植物高度中都存在这种寄生虫。

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