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首页> 外文期刊>African Entomology >Impact of insecticides on the reproductive potential of false codling moth, Thaumatotibia leucotreta (Meyrick, 1913) (Lepidoptera: Tortricidae).
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Impact of insecticides on the reproductive potential of false codling moth, Thaumatotibia leucotreta (Meyrick, 1913) (Lepidoptera: Tortricidae).

机译：杀虫剂对假苹果d蛾（Thauumatobia leucotreta）繁殖潜能的影响（Meyrick，1913年）（鳞翅目：Tortricidae）。

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摘要

False codling moth, Thaumatotibia leucotreta (Meyrick, 1913) (Lepidoptera: Tortricidae), is an important pest on citrus in South Africa. Several new insecticides were screened for their potential negative impacts on T. leucotreta' s reproduction through topical insecticide applications and detached fruit bioassays. Detached fruit bioassays showed that the registered standard concentration of DelegateReg. 20 g/1001 and DPX-HGW86 35 ml/1001 caused females to oviposit significantly fewer eggs (P=0.0016) than the controls. The same was found for the registered concentration of CoragenReg. (P<0.0001). Topical insecticide trials showed that only concentrations of CoragenReg., at the registered field rate and above had an effect on the moths' reproductive output (P<0.0001). AlsystinReg. and MeothrinTM, which were used as industry standards, did not negatively affect the reproductive output of the moths during topical or detached fruit bioassay trials. This study helps to better understand the importance of the application mode, i.e. directly on moths or fruit and implies secondary benefits to some insecticide applications.
机译：假苹果蛾（Thauomatobia leucotreta）（Meyrick，1913年）（鳞翅目：Tortricidae）是南非柑橘上的重要害虫。通过局部施用杀虫剂和分离的水果生物测定法，筛选了几种新的杀虫剂，它们对白斑病菌的繁殖具有潜在的负面影响。分离的水果生物测定表明，DelegateReg的注册标准浓度。 20克/ 1001和35毫升/ 1001的DPX-HGW86导致雌性产卵比对照组少得多（P = 0.0016）。对于CoragenReg的注册浓度也发现了相同的结果。 （P <0.0001）。局部杀虫剂试验表明，只有在规定的田间速率和以上的浓度下，CoragenReg。才能对蛾的繁殖产量产生影响（P <0.0001）。 AlsystinReg。和Meothrin TM 用作行业标准，在局部或分离的水果生物测定试验中对蛾的繁殖产量没有负面影响。这项研究有助于更好地理解施用方式的重要性，即直接在蛾类或水果上施用，并暗示了某些杀虫剂施用的次要好处。

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