Landscape and insecticide use affecting the Leucoptera coffeella infestation and the natural parasitism spatiotemporal distribution in brazilian coffee agroecosystems

IF 2.5 2区 农林科学 Q1 AGRONOMY
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Abstract

Monitoring the coffee leaf miner and natural parasitism is an important part of integrated pest management, and knowing the spatial distribution patterns of this pest can help improve sampling plans. This study aimed to determine spatial and temporal distributions of the coffee leaf miner infestation and natural parasitism in coffee plantations of different insecticide use and landscape configurations in the Planalto region, Bahia, Brazil. We monitored five coffee farms with different insecticide management practices in insecticide use and landscape features during two seasons, from December 2020 to November 2021. In each coffee farm, four regular grid plots of 30 points were established, for a total of 120 sample points per farm, that were georeferenced. Each point was a group of five coffee plants within 5 m of each other, 30 m in distance. Monthly collections of mined leaves were carried out at each sampling point to determine the L. coffeella infestation and natural parasitism rates. Geostatistical analysis was used to determine the spatial distribution of infestations and natural parasitism using semivariograms. Landscape metrics of each coffee plantation were surveyed in buffers ranging from 500 to 3000 m to assess their effects on population aggregation. Infestations of L. coffeella and natural parasitism of the pest occurred throughout the year and at varying intensities among farms. Leucoptera coffeella infestation and natural parasitism exhibited moderate aggregation patterns in most sampling months. The aggregation of L. coffeella infestations and natural parasitism were influenced by landscape and insecticide use. Forest cover, land cover use diversity, and insecticide use increased aggregation of L. coffeella infestations and natural parasitism, whereas edge density decreased aggregation of both. The study suggests that it may be beneficial to review the current sampling plans for the coffee leaf miner and the natural parasitism in coffee farms. This information can improve the integrated management of the pest in coffee farms and assist in decision-making regarding L. coffeella control strategies.

Abstract Image

景观和杀虫剂使用对巴西咖啡农业生态系统中咖啡褐飞虱侵扰和自然寄生虫时空分布的影响
监测咖啡潜叶蝇和自然寄生虫是害虫综合防治的重要组成部分,了解这种害虫的空间分布模式有助于改进采样计划。本研究旨在确定巴西巴伊亚州普拉纳尔托地区不同杀虫剂使用情况和景观配置的咖啡种植园中咖啡潜叶蝇虫害和自然寄生的时空分布情况。我们在 2020 年 12 月至 2021 年 11 月的两个季节里,对五个采用不同杀虫剂管理方法的咖啡园进行了监测。我们在每个咖啡农场建立了 4 个由 30 个点组成的规则网格地块,每个农场共有 120 个样本点,并进行了地理坐标定位。每个点由相距 5 米、30 米以内的五株咖啡植株组成。每月在每个取样点采集一次雷叶,以确定咖啡蝇的侵扰率和自然寄生率。利用半变量图进行地理统计分析,确定虫害和自然寄生的空间分布。在 500 米至 3000 米的缓冲区内调查了每个咖啡种植园的景观指标,以评估其对种群聚集的影响。咖啡褐飞虱的虫害和害虫的自然寄生全年都在发生,各农场的发生强度各不相同。在大多数采样月份,咖啡褐飞虱的虫害和自然寄生表现出中等程度的聚集模式。咖啡褐飞虱虫害和自然寄生的聚集受地形和杀虫剂使用的影响。森林植被、土地植被使用多样性和杀虫剂的使用增加了咖啡蝇虫害和自然寄生的聚集,而边缘密度则降低了两者的聚集。研究表明,对咖啡园中咖啡潜叶蝇和自然寄生虫的现行采样计划进行审查可能是有益的。这些信息可改善咖啡农场对害虫的综合管理,并有助于咖啡叶蝉控制策略的决策。
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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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