کارایی فرمولاسیون SC 10% کنه‌کش آبامکتین در مقایسه با فرمولاسیون EC 1.8% و کنه‌کش اسپیرودیکلوفن SC 24% روی کنه قرمز مرکبات، Panonychus citri و کنه‌های شکارگر در استان مازندران

نوع مقاله : مقاله پژوهشی

نویسندگان

بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی (AREEO)، ساری، ایران

چکیده

کنه قرمز مرکبات Panonychus citri یکی از مهمترین آفات نهالستان‌ها و باغ‌های بارده مرکبات در ایران و جهان است. در این تحقیق، کارایی شش تیمار شامل کنه­ کش آبامکتین اس‌سی 10 درصد در دو غلظت 1/0 و 2/0 در هزار، غلظت‌های 1/0 و 2/0 در هزار آبامکتین ای‌سی 8/1 درصد، غلظت 3/0 در هزار کنه­ کش اسپیرودیکلوفن اس‌سی 24 درصد و شاهد (آب‌) در برابر مراحل فعال کنه قرمز مرکبات مقایسه شد. آزمایش در قالب طرح بلوک­ های کامل تصادفی با چهار تکرار در باغ‌های پرتقال تامسون مناطق شرق و غرب استان مازندران در سال 1401 به اجرا در آمد. نمونه‌برداری یک روز قبل و 3، 7، 14 و 21 روز بعد از سمپاشی و با جمع‌آوری تعداد 50 برگ از هر تیمار و شمارش جمعیت زنده کنه انجام شد. طبق نتایج، کارایی تیمارهای 1/0 و 2/0 در هزار آبامکتین اس‌سی روی کنه قرمز مرکبات در سه روز پس از سمپاشی در منطقه غرب به طور میانگین به ترتیب 3/92 و 4/97 درصد و در 21 روز، به طور میانگین به ترتیب 7/84 و 3/89 درصد بود. این کارایی در منطقه شرق در سه روز پس از سمپاشی به طور میانگین به ترتیب 1/93 و 6/96 درصد بود که در 21 روز به طور میانگین به ترتیب به 2/76 و 6/89 درصد رسید. دو غلظت تیمار آبامکتین اس‌سی و دیگر تیمارها در 21 روز بعد از سمپاشی کاهش 22 تا 42 درصدی جمعیت کنه ­های شکارگر را موجب شدند، ولی مقایسه جمعیت قبل و 21 روز پس از سمپاشی نشان از افزایش تدریجی جمعیت شکارگرها بعد از 21 روز داشت. با توجه به اینکه بین کارایی دو غلظت 1/0 و 2/0 در هزار آبامکتین اس‌سی در همه روزهای پس از تیمار از نظر آماری اختلافی مشاهده نشد و غلظت 1/0 در هزار در کنترل کنه قرمز مرکبات به طور مؤثر عمل کرد، بنابراین استفاده از غلظت کمتر این کنه‌کش (1/0 در هزار) در مبارزه شیمیایی علیه کنه قرمز مرکبات در تناوب با سایر کنه‌کش‌ها قابل توصیه است.

کلیدواژه‌ها


عنوان مقاله [English]

Efficacy of abamectin 10% SC formulation compared to 1.8% EC formulation and spirodiclofen 24% SC acaricide on citrus red mite, Panonychus citri (McGregor) and predatory mites in mazandaran province

نویسندگان [English]

  • Moloud GholamzadehChitgar
  • Shabanali Mafi Pashakolaei
Plant Protection Research Department, Mazandaran Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran
چکیده [English]

Citrus red mite, Panonychus citri is one the most important pests of fruit-bearing citrus nurseries and orchards in Iran and worldwide. In this study, the efficacy of two doses, 0.1 and 0.2 ml/l of abamectin 10% SC, 0.1 and 0.2 ml/l of abamectin 1.8% EC, 0.3 ml/l of spirodiclofen SC 24% was compared with control treatment (water) against active stages of citrus red mite. A randomized complete block design with four replicates was done in Thomson orange orchards in the eastern and western regions of the Mazandaran  province in 2021. Sampling of 50 leaves from each treatment was done one day before and 3, 7, 14 and, 21 days after treatment. The results indicated that the efficiency of the treatments of 0.1 and 0.2 ml/l of abamectin SC on citrus red mite in the western region of the province was 92.3% and 97.4% respectively, three days after treatment and 21 days after treatment was 84.7% and 89.3% respectively. The efficiency of 0.1 and 0.2 ml/l of abamectin SC on citrus red mite in the eastern region of the province in three days after treatment was 93.1% and 96.6%, respectively, and in 21 days after treatment was 76.2% and 89.6%, respectively. Due to the  use of two doses of abamectin SC and other acaricides, the population of predatory mite decreased by 22-42% at 21 days after  treatment. The comparison of the populations before treatment and 21 days after treatment showed that predatory mites gradually increased their populations after 21 days. Considering that there was no statistical difference between the efficacy of two concentrations of 0.1 and 0.2 ml/l of abamectin SC on all days after treatment, and the concentration of 0.1 ml/l was effective in controlling citrus red mite, therefore, the use of a lower concentration of this acaricide (0.1 ml/l) in chemical control against citrus red mite in rotation with other acaricides is recommended.

کلیدواژه‌ها [English]

  • Control
  • Citrus red mite
  • Predatory mite
  • Rotation
  • Thomson orange
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