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<p><i>Thrips parvispinus,&#xa0;</i>a pest of quarantine importance is posing a serious threat to chili cultivation in India. Biological control could play an important role as many of insecticides used by farmers are not providing control. <i>Blaptostethus pallescens </i>an anthocorid bug has been found a potential predator of spider mites, thrips and <i>Tuta absoluta</i>. Therefore, we tested the potential of different stages of this predatory bug (4th, 5th&#xa0;instar and adult female) at varying density of <i>T. parvispinus</i> adults in the laboratory conditions. Both immature stages and adult female exhibited a type II functional response when exposed to different densities of<i>T. parvispinus</i>. 4th, 5th&#xa0;instar and adult female consumed an average of 17.3, 24.9 and 25.5 thrips at the highest thrips density (50). Highest attack rate (1.329) was observed in adult followed by 5th&#xa0;instar and 4th&#xa0;instar bug. Significant difference in attack rate was observed between 4th&#xa0;instar and adult and 5th&#xa0;instar and adult. Significant difference in handling time was observed between 4th&#xa0;and 5th&#xa0;instar. Our results highlight the potential of <i>B. pallescens</i> for management of <i>T. parvispinus</i> in chili.</p>

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Correction: Performance of Blaptostethus pallescens (Hemiptera: Anthocoridae) preying on Thrips parvispinus (Thysanoptera: Thripidae) a major threat to chili cultivation in India

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Richa Varshney,
  • Neeraj Budhlakoti

摘要

Thrips parvispinus, a pest of quarantine importance is posing a serious threat to chili cultivation in India. Biological control could play an important role as many of insecticides used by farmers are not providing control. Blaptostethus pallescens an anthocorid bug has been found a potential predator of spider mites, thrips and Tuta absoluta. Therefore, we tested the potential of different stages of this predatory bug (4th, 5th instar and adult female) at varying density of T. parvispinus adults in the laboratory conditions. Both immature stages and adult female exhibited a type II functional response when exposed to different densities ofT. parvispinus. 4th, 5th instar and adult female consumed an average of 17.3, 24.9 and 25.5 thrips at the highest thrips density (50). Highest attack rate (1.329) was observed in adult followed by 5th instar and 4th instar bug. Significant difference in attack rate was observed between 4th instar and adult and 5th instar and adult. Significant difference in handling time was observed between 4th and 5th instar. Our results highlight the potential of B. pallescens for management of T. parvispinus in chili.