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A comparison of the performance and biological efficiency of new knapsack sprayers and a controlled droplet application (CDA) sprayer for the control of the diamondback moth, Plutella xylostella L. (Lepidoptera : Plutellidae)

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文献类型：外文期刊

作者： Guo, SJ ¹ ; Geitz, G ² ; Franklin, T ² ; Liu, YQ ² ; Furlong, MJ ² ; Zalucki, MP ² ; Cooper, L ² ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou 310021, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, Hangzhou 310021, Peoples R China; QDPI, Gatton Res Stn, Ctr Vegetable Crops, Gatton, Qld 4343, Australia; QDPI, Redlands Res Stn, Cleveland, Qld 4163, Australia; Zhejiang Univ, Inst Appl Entomol, Hangzhou 310029, Peoples R China; Univ Queensland, Dept Zool & Entomol, Sch Life Sci, Brisbane, Qld 4072, Australia

关键词： knapsack sprayer;high volume;very low volume;cabbage;Plutella xylostella;insecticide efficacy assessment

期刊名称：INTERNATIONAL JOURNAL OF PEST MANAGEMENT （影响因子：1.907；五年影响因子：1.849 ）

ISSN： 0967-0874

年卷期： 2004 年 50 卷 2 期

页码：

收录情况： SCI

摘要： Field trials and laboratory bioassays were undertaken to compare the performance and efficacy (mortality of diamondback moth larvae) of insecticides applied to cabbages with three high volume hydraulic knapsack sprayers (NS-16, PB-20 and Selecta 12V) and a controlled droplet application (CDA) sprayer. In field experiments, the high volume knapsack sprayers (application rate 500-600 L ha(-1)) provided better spray coverage on the upper and lower surfaces of inner leaves, the upper surfaces of middle and outer leaves, and greater biological efficacy than the CDA sprayer (application rate 20similar to40 L ha(-1)). The PB-20 provided better spray coverage on the upper surface of middle leaves and both surfaces of outer leaves when compared with the Selecta 12V. However, its biological efficacy in the field was not significantly different from that of the other high volume sprayers. Increasing the application rate from 20 to 40 L ha(-1) for the CDA sprayer significantly increased droplet density but had no impact on test insect mortality. Laboratory evaluations of biological efficacy yielded higher estimates than field evaluations and there was no significant difference between the performance of the PB-20 and the CDA sprayer. Significant positive relationships were detected between insect mortality and droplet density deposited for both the PB-20 and the CDA sprayers.

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A comparison of the performance and biological efficiency of new knapsack sprayers and a controlled droplet application (CDA) sprayer for the control of the diamondback moth, Plutella xylostella L. (Lepidoptera : Plutellidae)

作者其他论文 更多>>

Experimental analysis of the influence of pest management practice on the efficacy of an endemic arthropod natural enemy complex of the diamondback moth

Evaluation of selective toxicity of five pesticides against Plutella xylostelia (Lep : Plutellidae) and their side-effects against Cotesia plutellae (Hym : Braconidae) and Oomyzus sokolowskii (Hym : Eulophidae)

Seasonal abundance of the parasitoid complex associated with the diamondback moth, Plutella xylostella (Lepidoptera : Plutellidae) in Hangzhou, China

Effects of host stages and temperature on population parameters of Oomyzus sokolowskii, a larval-pupal parasitoid of Plutella xylostella

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作者其他论文更多>>

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