桃金娘乙酸乙酯提取物与烟碱混配对螺旋粉虱增效作用  

Synergism Effect of Myrtle Ethyl Acetate Extract Mixed with Nicotine on Aleurodicus disperses

作　　者：张圣 黄东 凌家如 吴海霞[2] 吕朝军[3] 

机构地区：[1]海南省五指山市林业局,海南五指山572299 [2]海南省林业科学研究所通什分所,海南五指山572299 [3]中国热带农业科学院椰子研究所,海南文昌571339

出　　处：《热带林业》2016年第3期15-16,14,共3页Tropical Forestry

摘　　要：采用室内生物测定和田间药效试验相结合的方法,研究了桃金娘乙酸乙酯提取物与烟碱混配对螺旋粉虱的增效作用。研究结果表明,桃金娘乙酸乙酯提取物(30000mg/L)和烟碱(0.03mg/L)单独使用均对螺旋粉虱具有一定的生物活性,同时将烟碱浓度降低至0.015mg/L后,添加一定量的桃金娘乙酸乙酯提取物混配后,对螺旋粉虱的田间虫口减退率显著增加,田间药剂处理后5d桃金娘乙酸乙酯提取物、烟碱及混配处理的虫口减退率分别为68.59%、77.38%和92.78%。The synergism effect of Myrtle ethyl acetate extract mixed with nicotine on A leurodicus disperses was studied by using bio-assay method and field efficacy trial. The results indicated that myrtle ethyl acetate extract and nicotine use alone showed biological activity at concentration of 30000mg/L and 0.03mg/L, respec- tively. After decrease the nicotine concentration to 0.015mg/L and mixed with myrtle A. disperses population declined significant,the pest decrease ratio were 68.59% ethyl acetate extract, the ,77.38% and 92.78% in myrtle ethyl acetate extract, nicotine and mixture pesticide treatment, respectively.

关 键 词：桃金娘乙酸乙酯提取物 烟碱 螺旋粉虱 生物活性 虫口减退率 

分 类 号：S763[农业科学—森林保护学]