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首页> 外文期刊>Nematropica >Effect of grafting and nematicide treatments on damage by the root-lesion nematode Pratylenchus spp. on Coffea arabica L. in Guatemala
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Effect of grafting and nematicide treatments on damage by the root-lesion nematode Pratylenchus spp. on Coffea arabica L. in Guatemala

机译：嫁接和杀线虫剂处理对根病变线虫Pratylenchus spp的损害。在危地马拉的阿拉比卡咖啡

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摘要

Root-lesion nematodes, Pratylenchus spp., are among the pests with the greatest negative impact on the economy of coffee production in Guatemala. A field experiment was undertaken in southwest Guatemala to assess damage due to a root-lesion nematode and to compare two methods of manage-ment: grafting onto Coffea canephora Pierre, 1897, and nematicide treatments (terbufos). The experiment was carried out for five years, and included the first three harvests. Root population densities of nematodes, coffee berry yield losses, and plant mortality rates were highest on ungrafted C. arabica, confirming its high degree of vulnerability to this root-lesion nematode population. Grafting onto C. canephora provided efficient control of populations of root-lesion nematodes and resulted in significantly greater yields compared to ungrafted plants. Nematicide treatments suppressed populations of this root-lesion nematodes only until the second year after planting. This was sufficient to significan
机译：危地马拉的根部病虫线虫（Pratylenchus spp。）是对咖啡生产经济造成最大负面影响的害虫之一。在危地马拉西南部进行了田野试验，以评估根瘤线虫造成的损害，并比较两种处理方法：嫁接于小棕咖啡（Corffea canephora Pierre，1897年）和杀线虫剂治疗（terbufos）。实验进行了五年，其中包括前三个收获期。线虫的根种群密度，咖啡浆果的产量损失和植物死亡率在未嫁接的阿拉伯茶中最高，证实了其对该根病变线虫种群的高度脆弱性。与未移植的植物相比，嫁接到C. canephora上可以有效控制根病变线虫的种群，并导致明显更高的产量。杀线虫剂的治疗仅在种植后第二年才抑制这种根部病变线虫的数量。这足以说明

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