Efficacy of the EC formulations of Neem (1.28%) and Neemarin® (1%) on slug Agriolimax agrestis in laboratory and greenhouse conditions
Article Type:
Research/Original Article (دارای رتبه معتبر)

The effect of new formulations of Neem, Neemarin® and metaldehyde on slug, A. agrestis was evaluated in laboratory and greenhouse conditions. In bioassay experiments, the leaves of the ornamental plant (Spathiphyllum wallisii Regel) were dipped in different concentrations of neem and Neemarin®, and then same-age immature slugs were released on the leaves and their mortality and feeding were determined up to 14 days. The LC50 values for Neem and Neemarin® were estimated 34.1 and 22.5 ml/lit, respectively, and relative toxicity of Neemarin® was 1.59 times of /more than Neem. The greenhouse experiments were conducted in RCD with 4 treatments, and the maximum effect of the treatments was obtained for metaldehyde with a mean of 95.75% after 15 days compared to the Neem and Neemarin® with 47.85% and 51.63% mean mortality, respectively. Also, the effect of Neem and Neemarin® on the nutrition was 1.72 g and 1.9 g, respectively, in comparison with control (9 g) and the percentage of egg hatching significantly decreased compared to the control. According to the results, Neem and Neemarin® compounds in the concentrations 34.1 and 22.5 per thousand, respectively, and up to ten times on leaves of S. wallisii had a negative effect on the nutrition of A. agrestis and reduced the damage in greenhouse conditions. This effect with increasing age and body size of the slug and subsequent increase in concentration was maintained. However, they were less lethal than methaldehyde.

Journal of Plant Pests Research, Volume:10 Issue: 3, 2020
61 to 76
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!