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首页> 外文期刊>Biocontrol Science and Technology >Prospects of a fungus-contamination device for the control of tsetse fly Glossina fuscipes fuscipes.
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Prospects of a fungus-contamination device for the control of tsetse fly Glossina fuscipes fuscipes.

机译：用于控制采采蝇蝇舌苔脓疱病的真菌污染装置的前景。

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The prospects of the fungus Metarhizium anisopliae (Metsch.) Sorok. applied in contamination devices (Cds) to control tsetse fly Glossina fuscipes fuscipes Newstead was tested in a field experiment in Lake Victoria from 2 March 1999 to 31 August 2000. One hundred and sixty pyramidal traps mounted with Cds were deployed along the lakeshore and rivers on Mfangano Island. Contamination devices were loaded with 1.5-2.0 g of dry conidia/Cd. On the second island, Nzenze Island, four pyramidal traps fitted with plastic bags were deployed and served as the conventional 'trap and kill' population suppression method. A third island, Ngodhe Island, remained untreated and served as a control. Cds were recharged monthly with fresh conidia; plastic bags were also changed monthly. The apparent changes in population density were monitored weekly using biconical traps set at random on the three islands. To assess the incidence of M. anisopliae in tsetse flies on Mfangano Island, flies captured during monitoring were maintained in the laboratory and their mortality recorded. Fly population was reduced to 82.4 and 95.8% relative to untreated control on Mfangano and Nzenze islands, respectively, during the experimental period. Compared to the fungus-treated island, the number of flies caught in monitoring traps increased considerably in 'trap kill' treatment at 5 months after the treatments were removed. The incidence of M. anisopliae in fly populations was low during the 12 weeks following the initiation of the experiment but increased afterward until termination of the treatment. M. anisopliae could still be recovered from fly populations at 3 months after termination of the treatment, although the incidence was low. The results of this study have shown that application of M. anisopliae in a contamination device can suppress the population of G. fuscipes fuscipes comparable to the 'trap and kill' technology..
机译：Sorok的真菌Metarhizium anisopliae（Metsch。）的前景。 1999年3月2日至2000年8月31日，在维多利亚湖的田间试验中对纽斯特德进行了田间试验。姆法加诺岛。污染设备装有1.5-2.0 g干分生孢子/ Cd。在第二个岛Nzenze岛上，部署了四个装有塑料袋的金字塔形陷阱，并作为常规的“陷阱杀害”人口抑制方法。第三个岛屿恩戈德岛（Ngodhe Island）仍未得到治疗，并作为对照。用新鲜的分生孢子每月给Cds充电;塑料袋也每月更换一次。每周在三个岛屿上随机设置的双圆锥形陷阱监测人口密度的明显变化。为了评估Mfangano岛上采采蝇中斑节对虾的发生率，将监测期间捕获的蝇保存在实验室中并记录其死亡率。在实验期间，苍蝇种群相对于Mfangano和Nzenze岛上未经处理的对照分别减少到82.4和95.8％。与经真菌处理的岛屿相比，在去除诱捕装置后的5个月，“诱杀装置”处理中捕获在监视陷阱中的苍蝇数量大大增加。在实验开始后的12周内，蝇蝇种群中M. anisopliae的发生率较低，但此后一直上升，直到治疗终止。治疗终止后3个月，仍然可以从果蝇种群中恢复到M. anisopliae，尽管发病率很低。这项研究的结果表明，在污染装置中应用沙门氏菌，可以抑制与“诱杀”技术相当的脓毒气菌的种群。

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