摘要
【目的】筛选低毒高效的杀线剂,为半穿刺线虫的防治提供科学依据。【方法】进行10%噻唑膦颗粒剂、2.5亿个孢子/g厚孢轮枝菌微粒剂、0.5%阿维菌素颗粒剂、24.5%阿维菌素乳油、10%丙线磷颗粒剂、2亿/g盐生菌及2亿/g盐生菌+0.5%阿维菌素颗粒剂对柑橘半穿刺线虫田间防治效果试验,药后30d统计不同药剂对柑橘半穿刺线虫的防治效果。【结果】供试的6种药剂对半穿刺线虫均有较好的防效,对土壤中和根上线虫的防效均在50%以上,其中10%噻唑膦颗粒剂的防效最好,对土壤中和根上线虫的防效达80%以上;其次为24.5%阿维菌素乳油和2.5亿个孢子/g厚孢轮枝菌微粒剂,两种药剂对土壤中和根上线虫的防效为70%～75%。【结论】10%噻唑膦颗粒剂、2.5亿个孢子/g厚孢轮枝菌微粒剂和24.5%阿维菌素乳油对柑橘半穿刺线虫有较好的防治效果,且对柑橘生长无不良影响,可作为柑橘半穿刺线虫的防治药剂在柑橘生产上推广应用。
[ Objective ]The trial was conducted to screen out high-efficient and low-toxic nematicide to provide scientific references for Tylenchulus semipenetrans control. [Method]Six nematicides vfz., fosthiazate 10%GR, 2.5x10s living conidia/g Vertlcillium chlamydosporium MG, avermectin 0.5%GR, avermectiu 24.5%EC, ethoprophos IO%GR, and 2x l0s salt bacteria/g ＋0.5% avermectin GR were experimented to compare their control efficacy on citrus Tylenchulus semipenetrans in the field after 30 days of spray treatment. [Result]The result showed that the six tested nematicides were highly efficient to Tylenchulus semipenetrans in soil and root with over 50% control efficacy, among which the control efficacy of fosthiazate I O%GR was the highest （80%）, followed by avermectin 24.5%EC and 2.5x I0s living eonidia/g Verticil- lium chlamydospoHum MG （70-75%）. [ Conclusion ]Fosthiazate 10%GR, avermectin 24.5%EC and 2.5x 10s living conidia/g Verticillium chlamydospoHum MG had good control effect on citrus Tylenchulus semipenetrans with no detrimental effect on citrus growth, therefore they can be extendedly applied in citrus production.
出处
《南方农业学报》
CAS
CSCD
北大核心
2012年第8期1139-1141,共3页
Journal of Southern Agriculture
基金
广西农业科学院基本科研业务专项项目[200927(基)]
关键词
柑橘
半穿刺线虫
杀线虫剂
防治效果
citrus
Tylenchulus semipenetrans
nematicide
control efficacy
