تأثیر تراکم کاشت و رقم های مختلف لوبیا بر جمعیت کنه تارتن دولکه ای Tetranychus urticae و تریپس پیاز Thrips tabaci در شرایط مزرعه ای

نوع مقاله: مقاله پژوهشی

نویسندگان

1 گروه گیاه پزشکی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، ملاثانی، اهواز، ایران

2 مرکز تحقیقات کشاورزی و منابع طبیعی لرستان، سازمان تحقیات، آموزش و ترویج کشاورزی، بروجرد، ایران

چکیده

لوبیا معمولی گیاهی است که در سراسر جهان برای تغذیه کشت می ­شود. کنه تارتن دولکه­ ای، Tetranychus urticae Koch و تریپس پیاز، Thripstabaci Lindeman از آفات مهم‌ لوبیا هستند که همه ساله مقدار زیادی حشره­ کش برای کنترل آن­ها به کار می ­رود. یکی از راهکارهای مهم در برنامه های مدیریت تلفیقی آفات، روش­ کنترل زراعی است. این تحقیق با هدف بررسی تاثیر رقم و تراکم کاشت لوبیا روی تراکم این آفات در مزرعه ی لوبیا در شهرستان بروجرد (استان لرستان) ایران انجام شد. این تحقیق به صورت فاکتوریل در قالب طرح بلوک­ های تصادفی کامل (سه رقم اختر، درخشان و ۲۸۵ در پنج تراکم کشت 20، 30، 40، 50 و 60 بوته در متر مربع) انجام شد. روش نمونه برداری ­ها به صورت هفتگی بود و در هر تاریخ نمونه­ برداری، تعداد هر آفت به ثبت رسید. نتایج حاضر نشان داد که رقم لوبیا روی میزان تخم کنه تارتن و همچنین میزان جمعیت کل و لارو سن یک تریپس تاثیر معنی‌داری دارد. تراکم بوته نیز به صورت معنی‌داری روی جمعیت هر دو آفت تاثیر گذاشت. تاثیر متقابل رقم و تراکم روی جمعیت‌ هر دو آفت غیر معنی ­دار بود. به طور کلی، بیشترین و کم­ترین تراکم کل کنه تارتن به­ ترتیب در رقم درخشان و تراکم کشت 60 بوته در متر مربع و رقم 258 و تراکم کشت 20 بوته در متر مربع مشاهده شد. کمترین و بیشترین تراکم کل تریپس پیاز به ­ترتیب در رقم اختر و تراکم کشت 60 بوته در متر مربع و رقم اختر و تراکم کشت 20 بوته در متر مربع دیده شد. نتایج مطالعه حاضر به منظور توسعه برنامه IPM در مزارع لوبیا قابل توصیه می ­باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of bean plant density and its different cultivars on population of two spotted spider mite, Tetranychus urticae and onion thrips, Thrips tabaci in field condition

نویسندگان [English]

  • A. Karimi 1
  • F. Yarahmadi 1
  • A. Mohseni Amin 2
1 Department of Plant Protection, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Ahvaz, Iran
2 Lorestan Agricultural and Natural Resources Research and Education Center, Boroujerd Agricultural Research and Education campus, Boroujerd, Iran
چکیده [English]

Common bean is cultivated for feeding in the whole world. The two-spotted spider mite, Tetranychus urticae Koch, and the onion thrips, Thrips tabaci Lindemann, are considered as the two important pests of bean and lots of pesticides are being used for their control. One of the most important strategies in integrated pest management programs is the cultural practice. In the present study the effects of cultivars and bean plant density has been taken into consideration to control these pests in a bean field in Boroujerd district, Lorestan province of Iran. This research was performed as per factorial in a completely randomized block design, with three cultivars (Akhtar, Derakhshan and 285) in five plant densities of 20, 30, 40, 50 and 60 plants per m2. Samplings were carried out weekly and in every sampling date, the number of each pest was recorded. Results showed that bean cultivars had significant impact on the number of eggs in spider mite and in total and 1st instar larval populations of onion thrips. The plant density also significantly affected populations of both the pests. Interactions between cultivar and plant density was not significant for both pests. Overall the highest and lowest population densities of the spider mite observed in the cultivar of Derakhshan with 60 plants density in every m2 and then cultivar of 258 with a density of 20 plants per m2 respectively. The lowest and highest total number of thrips was observed in Akhtar cultivar with 60 plants per m2 and then Akhtar cultivar with a density of 20 per m2, respectively. The results of the present study could be recommended in IPM program for bean fields.

کلیدواژه‌ها [English]

  • Cultural control
  • IPM
  • cultivars
  • thrips
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