单宁酸和低单宁酸蚕豆中豌豆蚜的经济阈值和经济损失水平

IF 2.5 2区 农林科学 Q1 AGRONOMY
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引用次数: 0

摘要

豌豆蚜(Acyrthosiphon pisum)是蚕豆(Vicia faba)的主要害虫之一。豌豆蚜虫可在任何植物生长阶段为害蚕豆,造成严重的产量损失(高达 100%)。在萨斯喀彻温省,没有既定的指导方针来确定何时对蚕豆上的豌豆蚜进行管理。2019 年和 2020 年,我们在萨斯卡通地区的六个地点开展了一项实地研究,以确定蚕豆上豌豆蚜的经济阈值。为了确定豌豆蚜虫在单宁酸和低单宁酸蚕豆上的生长速度,我们进行了无选择实验。在田间条件下,蚕豆上的豌豆蚜数量在大约 5.25 ± 0.19 天内增加了一倍。平均经济阈值(ET)为每株主茎 34-50 头蚜虫。在蚜虫数量超过经济损失水平(EIL)(680-984 个累积蚜虫日或每株蚕豆主茎 96-142 头蚜虫)之前,这一 ET 提供了 7 天的准备时间。所有 ET 都是根据注册杀虫剂的成本和 2018 年 1 月至 2021 年 7 月蚕豆的三个基准价格(高、中、低)的平均值估算的。实验室无选择生物测定表明,蚕豆单宁对豌豆蚜虫的生长没有显著影响。因此,本研究确定的经济阈值既适用于单宁含量高的蚕豆品种,也适用于单宁含量低的蚕豆品种。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Economic thresholds and economic injury level for pea aphid in tannin and low tannin faba bean

Pea aphids, Acyrthosiphon pisum, are one of the major insect pests of faba bean (Vicia faba). Infestations of pea aphids on faba bean can occur at any plant growth stage and result in drastic yield losses (up to 100%). There was no established guideline to determine when to manage pea aphids on faba bean in Saskatchewan. We conducted a field study to develop an economic threshold for pea aphids on faba bean at six sites in the Saskatoon area in 2019 and 2020. No choice experiments were performed to determine pea aphid growth rate on tannin and low tannin faba bean. Under field conditions, the population of pea aphids on faba bean doubled in approximately 5.25 ± 0.19 days. The average economic threshold (ET) was 34–50 aphids per main stem of a plant. This ET provides a 7-day lead time before aphid populations are expected to exceed the economic injury level (EIL) of 680–984 cumulative aphid days or 96 to 142 aphids per faba bean main stem. All ETs were estimated based on the cost of registered insecticides and the average of three benchmark prices (high, medium and low) of faba bean from January 2018 to July 2021. Laboratory no-choice bioassays demonstrated no significant effect of faba bean tannins on pea aphid growth. Therefore, economic thresholds established in this study are applicable to both tannin and low tannin varieties of faba bean.

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来源期刊
Crop Protection
Crop Protection 农林科学-农艺学
CiteScore
6.10
自引率
3.60%
发文量
200
审稿时长
29 days
期刊介绍: The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics: -Abiotic damage- Agronomic control methods- Assessment of pest and disease damage- Molecular methods for the detection and assessment of pests and diseases- Biological control- Biorational pesticides- Control of animal pests of world crops- Control of diseases of crop plants caused by microorganisms- Control of weeds and integrated management- Economic considerations- Effects of plant growth regulators- Environmental benefits of reduced pesticide use- Environmental effects of pesticides- Epidemiology of pests and diseases in relation to control- GM Crops, and genetic engineering applications- Importance and control of postharvest crop losses- Integrated control- Interrelationships and compatibility among different control strategies- Invasive species as they relate to implications for crop protection- Pesticide application methods- Pest management- Phytobiomes for pest and disease control- Resistance management- Sampling and monitoring schemes for diseases, nematodes, pests and weeds.
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