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Yield Losses Assessment Due to Pests on Cotton in Lao PDR

机译:老挝人民民主共和国棉花虫害造成的产量损失评估

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From 1985 to 1991 research on cotton protection was carried out in Lao PDR to determine the incidence of the major pests and the efficiency of the recommended protection program. Results showed that without any pest control, the development of the plants was very low and yield losses reached almost 70% of the potential production. The recommended program, with seven insecticide sprayings, reduced the incidence of the pests but was not enough to ensure the required production. Moreover, it increased the cost of production and was not profitable. Only the intensive program with a weekly insecticide application could protect the crop satisfactorily. To cope with this situation, an IPM strategy, aiming at reducing the cost of pest control, must be implemented.
机译:从1985年到1991年,老挝人民民主共和国进行了棉花保护研究,以确定主要害虫的发生率和推荐保护计划的效率。结果表明,在没有任何害虫控制的情况下,植物的生长非常低,产量损失几乎达到了潜在产量的70%。推荐的方案是喷洒七种杀虫剂,可减少害虫的发生,但不足以确保所需的产量。而且,它增加了生产成本并且没有利润。只有每周施用杀虫剂的强化计划才能令人满意地保护作物。为了应对这种情况,必须实施旨在降低有害生物控制成本的病虫害综合防治战略。

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