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首页> 美国卫生研究院文献>Journal of Nematology >Efficacy of a Novel Nematicidal Seed Treatment against Meloidogyne incognita on Cotton
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Efficacy of a Novel Nematicidal Seed Treatment against Meloidogyne incognita on Cotton

机译：一种新型杀线虫种子处理剂对棉花根结线虫的治疗效果

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The efficacy of abamectin as a seed treatment for control of Meloidogyne incognita on cotton was evaluated in greenhouse, microplot, and field trials in 2002 and 2003. Treatments ranging from 0 to 100 g abamectin/100 kg seed were evaluated. In greenhouse tests 35 d after planting (DAP), plants from seed treated with abamectin were taller than plants from nontreated seed, and root galling severity and nematode reproduction were lower where treated seed were used. The number of second stage juveniles that had entered the roots of plants from seed treated with 100 g abamectin/kg seed was lower during the first 14 DAP than with nontreated seed. In microplots tests, seed treatment with abamectin and soil application of aldicarb at 840 g/kg of soil reduced the number of juveniles penetrating seedling roots during the first 14 DAP compared to the nontreated seedlings. In field plots, population densities of M. incognita were lower 14 DAP in plots that received seed treated with abamectin at 100 g/kg seed than where aldicarb (5.6 kg/ha) was applied at planting. Population densities were comparable for all treatments, including the nontreated controls, at both 21 DAP and harvest. Root galling severity did not differ among treatments at harvest.
机译：在2002年和2003年的温室，微图试验和田间试验中，评估了阿维菌素作为种子处理剂对棉花根结线虫的控制效果。评估了0至100克阿维菌素/ 100 kg种子的处理量。在种植后第35天（DAP）进行的温室试验中，用阿维菌素处理过的种子比未处理过的种子高，在使用处理过的种子处，根ing病的严重性和线虫的繁殖力也较低。在开始的第14天DAP期间，从用100 g阿维菌素/ kg种子处理过的种子进入植物根部的第二阶段幼虫的数量低于未处理种子。在微样试验中，与未经处理的幼苗相比，在前14天DAP期间，用阿维菌素进行种子处理并在土壤中施用涕灭威840 g / kg的土壤可减少穿透幼苗根部的幼虫数量。在田间样地中，以100 g / kg种子接受阿巴菌素处理过的种子的地块中隐孢子虫的种群密度低于种植时施用涕灭威（5.6 kg /公顷）的14 DAP。在21 DAP和收获时，所有处理方法（包括未处理的对照）的种群密度均相当。收获时不同处理之间的根gall严重程度没有差异。

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