Pérez Enrique E, Lewis Edwin E
Research Scientist, Monsanto Company, 700 Chesterfield Parkway West, Chesterfield, MO 63017.
Associate Professor, Departments of Nematology and Entomology, University of California, Davis, CA 95616.
Plant Dis. 2006 Apr;90(4):471-475. doi: 10.1094/PD-90-0471.
A 2-year experiment was conducted to test suppression of plant-parasitic nematodes on English boxwood using entomopathogenic nematodes and 3.5% thyme oil formulated as Promax. Treatments were Steinernema riobrave formulated as BioVector and S. feltiae formulated as Nemasys, both applied at a rate of 2.5 billion infective juveniles/ha, thyme oil at rate of 9.3 liters/ha, and nontreated control. In the 2001 season, treatment with S. feltiae reduced (P ≤ 0.05) the population growth of Tylenchorhynchus sp. 7 days after treatment and Hoplolaimus sp. 30 and 60 days after treatment. Treatment with S. riobrave reduced (P ≤ 0.05) the population growth of all plant-parasitic nematode species at all sampling dates, with the exception of Mesocriconema sp. 30 days after treatment and Tylenchorhynchus sp. and Rotylenchus buxophilus 60 days after treatment. Treatment with thyme oil reduced (P ≤ 0.05) the population growth of all plant-parasitic nematode genera at all sampling dates except Tylenchorhynchus sp. and R. buxophilus 60 days after treatment. In the 2002 season, treatment with S. feltiae had no effect on nematode population growth. Treatment with S. riobrave reduced (P ≤ 0.05) the population growth of R. buxophilus 7 days after treatment, and all plant-parasitic nematodes 30 and 60 days after treatment except Hoplolaimus sp. 30 days after treatment and Mesocriconema sp. 60 days after treatment. Treatment with thyme oil reduced (P ≤ 0.05) the population growth at all sampling dates of plant-parasitic nematodes except Mesocriconema sp. 60 days after treatment.
进行了一项为期两年的试验，以测试使用昆虫病原线虫和配制为Promax的3.5%百里香油对英国黄杨木上植物寄生线虫的抑制作用。处理包括配制为BioVector的斯氏线虫（Steinernema riobrave）和配制为Nemasys的长尾斯氏线虫（S. feltiae），两者均以25亿条感染性幼虫/公顷的速率施用，百里香油以9.3升/公顷的速率施用，以及未处理的对照。在2001年季节，用长尾斯氏线虫处理在处理后7天降低了（P≤0.05）矮化属线虫（Tylenchorhynchus sp.）的种群增长，在处理后30天和60天降低了螺旋线虫属线虫（Hoplolaimus sp.）的种群增长。用斯氏线虫处理在所有采样日期降低了（P≤0.05）所有植物寄生线虫种类的种群增长，但处理后30天的中环线虫属线虫（Mesocriconema sp.）以及处理后60天的矮化属线虫和嗜黄环线虫（Rotylenchus buxophilus）除外。用百里香油处理在所有采样日期降低了（P≤0.05）除处理后60天的矮化属线虫和嗜黄环线虫之外的所有植物寄生线虫属的种群增长。在2002年季节，用长尾斯氏线虫处理对线虫种群增长没有影响。用斯氏线虫处理在处理后7天降低了嗜黄环线虫的种群增长（P≤0.05），在处理后30天和60天降低了所有植物寄生线虫的种群增长，但处理后30天的螺旋线虫属线虫和处理后60天的中环线虫属线虫除外。用百里香油处理在除处理后60天的中环线虫属线虫之外的所有采样日期降低了（P≤0.05）植物寄生线虫的种群增长。
