Preferences of the wheat bug (Nysius huttoni) for particular growth stages of the potential trap crop, alyssum (Lobularia maritima)

Q3 Agricultural and Biological Sciences

New Zealand Plant Protection Pub Date : 2019-07-22 DOI:10.30843/NZPP.2019.72.269

S. Tiwari, D. Saville, S. Wratten

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引用次数: 4

Abstract

The New Zealand endemic wheat bug, Nysius huttoni (Hemiptera: Lygaeidae), is a pest of brassica seedlings. However, it has a wide host range comprising almost all cultivated brassicas, cereals and many other cultivated crops, as well as weeds. The brassica alyssum (Lobularia maritima) is a potential trap crop of N. huttoni, having the potential to keep the bugs away from seedlings. Laboratory no-choice and choice tests evaluated the relative preference of N. huttoni for two major growth stages of alyssum – vegetative and flowering. In both bioassays, N. huttoni adults settled significantly more promptly on the flowering than on the vegetative stage. The same preference was evident for adult numbers settling. Survival was higher on the flowering (38%) than on the vegetative stage (28%), although this was not significant. The implications of these findings are important in the design of trap cropping protocols for N. huttoni management. Flowering alyssum in brassica fields can also potentially improve pest biological control and provide other ecosystem services that can contribute to mitigating diminished ecosystem functions in agriculture.

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小麦臭虫(Nysius huttoni)对潜在的诱捕作物雪莲(Lobularia maritima)特定生长阶段的偏好

新西兰特有的小麦害虫，Nysius huttoni(半翅目:Lygaeidae)，是一种危害芸苔幼苗的害虫。然而，它的寄主范围很广，包括几乎所有栽培的芸苔属植物、谷物和许多其他栽培作物，以及杂草。白芸苔是一种潜在的捕虫作物，有可能使臭虫远离幼苗。实验室无选择试验和选择试验评价了胡托尼布氏菌在分析植物营养和开花两个主要生长阶段的相对偏好。在这两种生物测定中，胡托尼成虫在开花阶段比在营养阶段更迅速地定居下来。同样的偏好在成虫数量上也很明显。成活率在花期(38%)高于营养期(28%)，但差异不显著。这些发现的意义是重要的设计陷阱种植方案的胡托尼布尔管理。芸苔菜田开花的菊花还可能改善害虫的生物防治，并提供其他生态系统服务，有助于缓解农业生态系统功能的减弱。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

New Zealand Plant Protection Agricultural and Biological Sciences-Insect Science

CiteScore

1.10

自引率

0.00%

发文量

期刊介绍： New Zealand Plant Protection is the journal of the New Zealand Plant Protection Society. It publishes original research papers on all aspects of biology, ecology and control of weeds, vertebrate and invertebrate pests, and pathogens and beneficial micro-organisms in agriculture, horticulture, forestry and natural ecosystems of relevance to New Zealand.