Scholarlink

<p> A laboratory study was conducted in Bengaluru, India, to examine the development, life history, and behavior of the Red Pierrot butterfly,&#xa0;<i>Talicada nyseus</i>&#xa0;(Guerin) (Lepidoptera: Lycaenidae), which is frequently found in succulent host plants such as&#xa0;<i>Bryophyllum pinnatum</i>&#xa0;(Lam.) Oken (Crassulaceae). <i>Talicada nyseus</i> exhibited four larval instars and completed its life cycle in 36.95 ± 3.31 days. The mean incubation period of the egg was 3.75 days. The prepupal, pupal, and larval stages’ respective mean development times were 1.51 ± 0.50, 8.56 ± 10.65, and 14.23 ± 1.82, days. The length of the larva in its first and last instars was 1.95±0.13 and 15.85±0.93, respectively. In larval stages, there was no apparent relationship between length and width. The sex ratio was 1.39:1 in favor of females. One day following eclosion, adults were prepared for mating. The ovaries of the adult&#xa0;female held 75.1 eggs. Male and female butterflies who were not fed lived only three to five days instead of eleven to fourteen days like those who had access to water. The findings of this study will be helpful in developing Integrated Pest Management tactics to combat this pest. These findings highlight the female-biased sex ratio and high reproductive potential of <i>T. nyseus</i>, factors that may accelerate population growth and trigger rapid pest outbreaks under favorable ecological conditions. By clarifying its developmental biology and identifying critical vulnerabilities—such as short adult survival in the absence of food and the timing of larval development—this study provides essential baseline knowledge for devising Integrated Pest Management strategies. Such strategies may include cultural practices, conservation of natural enemies, and interventions targeting nutritionally sensitive life stages, thereby offering practical avenues to mitigate the agricultural impact of this pest.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Life history, incidence and damage symptoms of the red pierrot butterfly, Talicada nyseus (Guerin) (Lepidoptera: Lycaenidae) on Bryophyllum pinnatum (Lam.) Oken

  • 期刊论文

  • 发表日期：

    2025年12月18日

查看全文
  • Soumya Kallekkattil

摘要

A laboratory study was conducted in Bengaluru, India, to examine the development, life history, and behavior of the Red Pierrot butterfly, Talicada nyseus (Guerin) (Lepidoptera: Lycaenidae), which is frequently found in succulent host plants such as Bryophyllum pinnatum (Lam.) Oken (Crassulaceae). Talicada nyseus exhibited four larval instars and completed its life cycle in 36.95 ± 3.31 days. The mean incubation period of the egg was 3.75 days. The prepupal, pupal, and larval stages’ respective mean development times were 1.51 ± 0.50, 8.56 ± 10.65, and 14.23 ± 1.82, days. The length of the larva in its first and last instars was 1.95±0.13 and 15.85±0.93, respectively. In larval stages, there was no apparent relationship between length and width. The sex ratio was 1.39:1 in favor of females. One day following eclosion, adults were prepared for mating. The ovaries of the adult female held 75.1 eggs. Male and female butterflies who were not fed lived only three to five days instead of eleven to fourteen days like those who had access to water. The findings of this study will be helpful in developing Integrated Pest Management tactics to combat this pest. These findings highlight the female-biased sex ratio and high reproductive potential of T. nyseus, factors that may accelerate population growth and trigger rapid pest outbreaks under favorable ecological conditions. By clarifying its developmental biology and identifying critical vulnerabilities—such as short adult survival in the absence of food and the timing of larval development—this study provides essential baseline knowledge for devising Integrated Pest Management strategies. Such strategies may include cultural practices, conservation of natural enemies, and interventions targeting nutritionally sensitive life stages, thereby offering practical avenues to mitigate the agricultural impact of this pest.