Scholarlink

<p>The flower thrips <i>Frankliniella intonsa</i> is a polyphagous and widely distributed agricultural pest that damages a wide range of crops. To obtain information for behavior-based pest management, we evaluated the behavioral responses of <i>F. intonsa</i> and two predatory bugs, <i>Orius laevigatus</i> and <i>O. minutus</i>, to selected attractants previously identified for western flower thrips (WFT) and to several herbivore-induced plant volatiles (HIPVs) using Y-tube olfactometer assays. The influence of physiological state on the responses of <i>F. intonsa</i> to WFT attractants was examined. Among the tested attractants, behavioral responses of <i>F. intonsa</i> varied with physiological condition, with (1S)-(-)-verbenone and methyl isonicotinate eliciting attraction under specific states. In HIPV assays, methyl salicylate and methyl anthranilate elicited repellency in <i>F. intonsa</i>. Predator responses differed between species: <i>O. laevigatus</i> responded positively to methyl isonicotinate, whereas <i>O. minutus</i> exhibited limited responses to the WFT attractants. Methyl anthranilate elicited positive responses in both predator species. These results indicate that selected semiochemicals differentially influence pest and predator behavior and could be incorporated into integrated pest management strategies. Methyl anthranilate elicited repellency in <i>F. intonsa</i> while attracting <i>Orius</i> predators, suggesting its potential role as a push component by repelling pests while enhancing predator recruitment. In contrast, methyl isonicotinate attracted both <i>F. intonsa</i> and <i>O. laevigatus</i>, indicating its potential use as a pull or aggregation component that may increase predator-prey encounter rates in locations away from protected crops. These findings improve understanding of semiochemical-mediated behavioral interactions between <i>F. intonsa</i> and its predators and can be applied in the pest management.</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

Behavioral Responses of the Flower Thrips Frankliniella intonsa and its Predators, the Minute Pirate Bugs Orius laevigatus and O. minutus, to Selected Semiochemicals

  • 期刊论文

  • 发表日期：

    2026年6月1日

查看全文
  • Young-gyun Park,
  • Bikash Bhusal,
  • Eun Hye Ham,
  • Un Taek Lim

摘要

The flower thrips Frankliniella intonsa is a polyphagous and widely distributed agricultural pest that damages a wide range of crops. To obtain information for behavior-based pest management, we evaluated the behavioral responses of F. intonsa and two predatory bugs, Orius laevigatus and O. minutus, to selected attractants previously identified for western flower thrips (WFT) and to several herbivore-induced plant volatiles (HIPVs) using Y-tube olfactometer assays. The influence of physiological state on the responses of F. intonsa to WFT attractants was examined. Among the tested attractants, behavioral responses of F. intonsa varied with physiological condition, with (1S)-(-)-verbenone and methyl isonicotinate eliciting attraction under specific states. In HIPV assays, methyl salicylate and methyl anthranilate elicited repellency in F. intonsa. Predator responses differed between species: O. laevigatus responded positively to methyl isonicotinate, whereas O. minutus exhibited limited responses to the WFT attractants. Methyl anthranilate elicited positive responses in both predator species. These results indicate that selected semiochemicals differentially influence pest and predator behavior and could be incorporated into integrated pest management strategies. Methyl anthranilate elicited repellency in F. intonsa while attracting Orius predators, suggesting its potential role as a push component by repelling pests while enhancing predator recruitment. In contrast, methyl isonicotinate attracted both F. intonsa and O. laevigatus, indicating its potential use as a pull or aggregation component that may increase predator-prey encounter rates in locations away from protected crops. These findings improve understanding of semiochemical-mediated behavioral interactions between F. intonsa and its predators and can be applied in the pest management.