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首页> 外文期刊>Journal of Economic Entomology >Differential Impacts of Citrus Thrips Across Sweet Orange and Mandarin Species
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Differential Impacts of Citrus Thrips Across Sweet Orange and Mandarin Species

机译：柑橘蓟体跨越甜橙和普通话物种的差异影响

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摘要

Several domesticated Citrus species are grown as major commercial crops in California. Despite this, farmers currently use a single set of management practices, originally created for sweet oranges (Citrus sinensis (L.) Osbeck [Sapindales: Rutaceae]), for both sweet oranges and all mandarin species. Mandarins, primarily Citrus reticulata Blanco, Citrus clementina hort. ex Tanaka, and Citrus unshiu Marcovitch, comprise almost 25% of California citrus acreage, and little work has been done to assess host-pest interactions for these species. Citrus thrips (Scirtothripscitri Moulton [Thysanoptera: Thripidae]) are one of the main pests in California citrus and are major targets for early spring, "petal fall" insecticide applications. We used mixed species citrus blocks to test the influence of Citrus species, including C. sinensis, C. reticulata, C. clementina, and C. unshiu, on 1) citrus thrips densities following petal fall; 2) citrus thrips-induced scarring on both the calyx and stylar ends of fruit; and 3) fruit deformation. Citrus sinensis and C. unshiu had relatively high citrus thrips densities and scarring levels, whereas C. reticulata had lower densities of citrus thrips and scarring levels. The age structure of citrus thrips populations also varied across Citrus species. Fruit deformity associated with citrus thrips scarring was found on all Citrus species examined. Scarring on the stylar-end of fruit, a previously largely ignored location of citrus thrips scarring, was found to be common in C. reticulata. It is clear from our work that species-specific management guidelines for citrus thrips are needed in sweet oranges and mandarins.
机译：几种驯养的柑橘类是加利福尼亚州主要商业作物的种植。尽管如此，农民目前使用单一的管理实践，最初为甜橙（柑橘Sinensis（L.）Osbeck [Sapindales：Rutaceae]），适用于甜橙和所有普通话物种。普通话，主要是柑橘reticulata blanco，柑橘素克伦蒂娜妓女。前田纳卡和柑橘Unshiu Marcovitch，占加州柑橘种植面积的近25％，已经完成了很少的工作来评估这些物种的主体害虫相互作用。柑橘蓟马（Scirtothrivescitri Moulton [Thysanoptera：Thripidae]）是加州柑橘的主要害虫之一，是早春的主要目标，“花瓣秋季”杀虫剂应用。我们使用混合物种柑橘块来测试柑橘类物种的影响，包括C. Sinensis，C. TeariCulata，C.Clementina和C. Unshiu，On 1）柑橘曲率血液临时; 2）柑橘蓟马 - 在果实的Calyx和Sypher末端诱导瘢痕形成; 3）果实变形。柑橘类生物和C. Unshiu具有相对较高的柑橘蓟马密度和疤痕水平，而C. reticulata具有较低的柑橘蓟马蓟马密度和疤痕水平。柑橘蓟马群的年龄结构也在柑橘类别中变化。在检查的所有柑橘类物种上发现了与柑橘蓟马血液相关的果实畸形。在练习术的练习结束时，发现柑橘蓟马血汗刺激的先前主要被忽略的位置，发现在C. Retictulata中常见。从我们的工作中可以清楚地看出，甜蜜的橘子和普通话需要特定的柑橘蓟马蓟马蓟马蓟马。

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