اثرات کشندگی و زیرکشندگی ترکیب دی‏فلوویدازین روی کنه قرمز مرکبات (Panonychus citri)

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه گیاهپزشکی، دانشکده علوم کشاورزی، دانشگاه گیلان، گیلان ایران.

چکیده

چکیده
کنه قرمز مرکبات، Panonychus citri یک گونه مهم آفت گیاهی در مناطق پرورش مرکبات جهان است. به‏ علت استفاده از آفت­کش ‏های شیمیایی با طیف اثر وسیع علیه این آفت و آفات دیگر در مناطق مرکبات ‏کاری، P. citri تبدیل به یک آفت جدی در باغ‏های مرکبات از جمله باغ‏ های مرکبات شمال کشور شده است. در این تحقیق اثرات کنه ­کشی و زیرکشندگی ترکیب دی‏فلوویدازین روی مراحل مختلف زندگی کنه قرمز مرکبات مورد بررسی قرار گرفت. نتایج نشان داد که دی‏فلوویدازین روی مراحل تخم، لارو و دئوتونمف کنه قرمز مرکبات سمیت بالایی داشت. اثرات زیرکشندگی دی‏فلوویدازین روی پارامترهای جدول زندگی کنه قرمز مرکبات بررسی شد و نتایج کاهش معنی ‏دار میانگین طول نسل، طول عمر افراد بالغ، دوره تخم‏ریزی و باروری را نشان داد. نرخ خالص تولیدمثل (R0) به ترتیب برای شاهد و تیمار دی‏فلوویدازین 2/11 و 62/1 نتاج به ازای هر کنه ماده به‏ دست آمد. نرخ ذاتی (r) و متناهی (λ) افزایش برای شاهد به‏ ترتیب 133/0 و 142/1 بر روز و برای تیمار LC30 دی‎فلوویدازین به ترتیب 033/0 و 034/1 بر روز بود. به ‏طور کلی غلظت زیرکشنده دی‎فلوویدازین روی همه پارامترهای رشد جمعیت در دئوتونمف‏های تیمار شده اثر کنترل کنندگی داشت. در مجموع، نتایج نشان دهنده اثرات کشندگی و زیرکشندگی دی‏فلوویدازین روی کنه قرمز مرکبات بوده و می‏ توان این ترکیبات را در قالب برنامه مدیریت مقاومت برای کنترل این کنه به ‏کار برد.
 

کلیدواژه‌ها


عنوان مقاله [English]

Lethal and sub-lethal effects of diflovidazin on citrus red mite, Panonychus citri

نویسندگان [English]

  • Meysam Soleymani Karati
  • Mohammad Ghadamyari
  • Azadeh Karimi-Malati
  • Elaheh Shafiei Alavijeh
Department of Plant Protection, College of Agricultural Sciences, University of Guilan, Rasht, Iran.
چکیده [English]

Abstract
Citrus red mite, Panonychus citri is an important plant pest species in the citrus growing regions of the world. Due to the use of chemical pesticides with a wide range of effects against this pest and other pests in citrus orchards, P. citri has been become a serious pest in citrus orchards, including citrus orchards in the north of the country. In this study, the acaricidal and sublethal effects of diflovidazin on different stages of citrus red mite were investigated. The results showed that diflovidazin was highly toxic to the eggs, larvae and deutonymph stages of citrus red mite. The sublethal effects of diflovidazin on the parameters of citrus red mite life table were investigated and the results showed a significant decrease in generation length average, adult longevity, fecundity and fertility period. The net reproduction rates (R0) were 11.2 and 1.62 offspring per female mite for control and treatment of diflovidazin, respectively. The intrinsic (r) and finite (λ) rates of increase for the control were 0.133 and 1.142 per day, respectively, and for the LC30 treatment was 0.033 and 1.034 per day, respectively. In general, the sub-lethal concentration of difluvidazine showed a diminishing effect on all population growth parameters in treated deutonymphs. Overall, the results indicate the lethal and sub-lethal effects of diflovidazin on citrus red mites, and this compound can be recommended as part of a resistance management program to control this mite.
 

کلیدواژه‌ها [English]

  • Keywords: Acaricide
  • Demographic Toxicology
  • Life Table
  • Toxicity
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