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首页> 外文期刊>Nematropica >EFFICACY OF SELECTED NEMATICIDES FOR MANAGEMENT OF HOPLOLAIMUS COLUMBUS IN COTTON
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EFFICACY OF SELECTED NEMATICIDES FOR MANAGEMENT OF HOPLOLAIMUS COLUMBUS IN COTTON

机译：精选杀虫剂对棉铃虫的治疗效果

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摘要

The effectiveness of selected nematicides for management of the Columbia lance nematode, Hoplolaimus Columbus , on cotton was evaluated in field experiments. Aldicarb at rates of 0.84 to 1.18 kg (a.i.)/ha was effective in increasing cotton lint yield in several experiments with cultivars that were moderately tolerant to this nematode, whereas fumigant nematicides were required to provide significant yield increases on intolerant cultivars. Metam sodium and 1, 3-dichloropropene (1, 3-D) were effective in limiting population densities of H. columbus at two locations at both mid-season and at cotton harvest compared to controls or to the non-fumigant nematicide aldicarb. Cotton lint yield of an intolerant cultivar was positively related to the application rate of metam sodium or 1, 3-D at one location with a high initial population density (Pi) of this nematode, but not at a second location with lower (Pi) and lower sand content. Treatment of soil with relatively high rates of fumigant may alleviate the need for treatment in the subsequent year.
机译：在田间试验中评估了选择的杀线虫剂对棉花上的哥伦比亚矛状线虫霍普莱莱姆斯·哥伦布的处理效果。涕灭威的0.84至1.18 kg（a.i。）/ ha的比例在中度耐受该线虫的几个品种的实验中可以有效地增加棉绒的产量，而熏蒸杀线虫剂必须显着提高不耐性品种的产量。与对照或非熏蒸杀线虫剂涕灭威相比，Metam钠和1，3-二氯丙烯（1，3-D）在季节中期和棉花收获的两个地点均可有效地限制哥伦布的种群密度。不耐性品种的棉绒产量与该线虫的高初始种群密度（Pi）的一个位置的间位钠或1、3-D的施用率呈正相关，而与较低（Pi）的第二个位置的棉花不相关并降低砂含量。用熏蒸剂比例较高的土壤进行处理可能会减轻随后一年的处理需求。

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