کاربرد سیستم‌های اطلاعات جغرافیایی (GIS) در نقشه‌برداری پراکنش شپشک آدآلود پنبه (Phenacoccus solenopsis) در فضای سبز شهری

نوع مقاله : حشره شناسی کشاورزی

نویسندگان

1 Department of Plant Protection, Faculty of Agriculture, Agricultural Sciences and Natural resources University of Khuzestan

2 گروه گیاهپزشکی- دانشکده کشاورزی- دانشگاه رازی کرمانشاه.

چکیده

شپشک آردآلود پنبه Phenacoccus solenopsis (Hemiptera: Pseudococcidae) یکی از آفات مهم و مهاجم در فضای سبز شهری استان خوزستان است که خسارت‌های جدی بر گیاهان زینتی به‌ویژه ختمی چینی (Hibiscus rosa-sinensis) وارد می‌کند. این پژوهش با هدف بررسی الگوی پراکنش مکانی این آفت در فضای سبز شهر دزفول طی سال‌های 2024–2025 و با بهره‌گیری از روش‌های زمین‌آماری انجام شد. به‌منظور پایش جمعیت آفت، در دو منطقه شهری، 30 بوته ختمی چینی انتخاب و جمعیت پوره‌ها و حشرات بالغ در بازه‌های دوهفته‌ای شمارش گردید. داده‌های به‌دست‌آمده پس از آزمون نرمال‌بودن، با مدل‌های زمین‌آماری شامل واریوگرام و کریجینگ تجزیه و تحلیل شدند. نتایج نشان داد که الگوی پراکنش جمعیت شپشک آردآلود پنبه به‌طور عمده از نوع تجمعی بوده و وابستگی مکانی قوی (DD بیش از 70%) بین داده‌ها وجود دارد. مدل‌های نمایی و کروی بهترین برازش را با داده‌ها داشتند و دامنه تأثیر مکانی بین 20 تا 200 متر متغیر بود. این نتایج نشان می‌دهد که استفاده از روش‌های زمین‌آماری می‌تواند ابزاری کارآمد برای پیش‌بینی تراکم آفت، بهینه‌سازی طرح‌های نمونه‌برداری و کاهش هزینه‌های مدیریت در فضای سبز شهری باشد. در مجموع، یافته‌ها اهمیت مدیریت تلفیقی و مکان‌ویژه آفات را در کاهش خسارات زیست‌محیطی و اقتصادی ناشی از این گونه مهاجم برجسته می‌سازد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Utilization of Geographic Information Systems (GIS) for Mapping the Distribution of the Cotton Mealybug (Phenacoccus solenopsis) in Urban Green Spaces

نویسندگان [English]

  • Leila Ramezani 1
  • Ronak Mohammadi 2
1 Department of Plant Protection, Faculty of Agriculture, Agricultural Sciences and Natural resources University of Khuzestan
2 Department of Plant Protection, Faculty of Agriculture, University of Razi, Kermanshah, Iran
چکیده [English]

The cotton mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae), is a highly invasive pest that poses serious threats to ornamental plants in urban green spaces. This study aimed to determine the spatial distribution pattern of P. solenopsis populations on Chinese hibiscus (Hibiscus rosa-sinensis L.) in Dezful, southwestern Iran, during 2024–2025 using geostatistical methods. A total of 30 hibiscus plants were sampled in two urban areas, and nymph and adult mealybug densities were recorded bimonthly. Geostatistical analyses including variogram modeling and kriging were applied to characterize spatial dependence and generate distribution maps. Results showed that the population of P. solenopsis exhibited an aggregated distribution with strong spatial dependence (DD = 0.70–0.99). Exponential and spherical models provided the best fit to the data, with effective ranges varying between 20 and 200 m. Kriging maps revealed distinct hotspots of infestation across the study sites. These findings highlight the efficiency of geostatistical tools for predicting pest distribution and identifying high-risk areas. The study demonstrates that integrating spatial analysis into monitoring programs can optimize sampling design, reduce costs, and improve site-specific management strategies for P. solenopsis in urban green spaces.

کلیدواژه‌ها [English]

  • cotton mealybug
  • geostatistics
  • kriging
  • spatial distribution
  • hibiscus

مراجع

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آفات و بیماری‌ های گیاهی
دوره 93، شماره 2
اسفند 1404
صفحه 1-11

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