Management of citrus root weevils (Coleoptera: Curculionidae) on Florida citrus with soil-applied entomopathogenic nematodes (Nematoda: Rhabditida)
Management of citrus root weevils (Coleoptera: Curculionidae) on Florida citrus with soil-applied entomopathogenic nematodes (Nematoda: Rhabditida)
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DOI：
10.2307/3495831
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发表时间：
1999-03-01
影响因子：
1.4
通讯作者：
Killer, EE
中科院分区：
文献类型：
--
作者：
Bullock, RC;Pelosi, RR;Killer, EE
对昆虫病原线虫Steinenema carpocapsae Weiser和S.riobravis Cabanillas、Poiner和Raulston进行了一年两次的土壤处理对西印度甘蔗二化螟和柑橘根象的防治效果进行了比较。此外，四个单次剂量演示评估了金黄色葡萄球菌，并进行了为期两年的试验，比较了单年度治疗和两年两次治疗。这6个试验是在美国佛罗里达州的印地安河地区进行的。每年使用两次Carpocapsae对美洲斑潜蝇的防治效果与S.riobravis一样有效，但对矮小斑潜蝇的防治效果不佳。在示范试验中，一次喷洒S.riobravis通过低流量灌溉系统或拖拉机安装的除草剂吊杆每棵树输送200万条线虫，可使P.Ltus和D.rebreviatus分别减少%和89%，在两年的时间里，每棵树每年一次喷洒200万粒金黄色葡萄球菌，可使白纹伊图斯和短冠金龟子的种群分别减少65%和85%，在统计上相当于一年两次的金黄色葡萄球菌治疗，分别减少80%和95%。
The entomopathogenic nematodes Steinernema carpocapsae Weiser and S. riobravis Cabanillas, Poiner and Raulston were compared as twice a year soil treatments for control of the west indian sugarcane root stalk borer weevil, Diaprepes abbreviatus (L.), and citrus root weevil, Pachnaeus litus (Germar). Additionally, four single rate demonstrations evaluated S. riobravis and a 2- year test compared single versus double annual treatments of S. riobravis. The 6 experiments were conducted in the Indian River Area of Florida, U.S.A.Two applications per year of S. carpocapsae were as effective as S. riobravis for P. litus control but failed to control D. abbreviatus.A single application of S. riobravis delivering 2 million nematodes per tree through low volume irrigation systems or a tractor-mounted herbicide boom in demonstration tests provided 64% and 89% reduction of P. litus and D. abbreviatus, respectively.Single annual applications of 2 million S. riobravis per tree delivered with sprinkling cans reduced P. litus populations by 65% and D. abbreviatus populations by 85% over a 2 year period and was statistically equal to a 2-a-year treatment of S. riobravis that provided 80% and 95% reductions, respectively.