Scholarlink

<p>Psyllids are small (2.5–4&#xa0;mm), phytophagous, plant sap-feeding insects. Several species, in the genus <i>Cacopsylla</i>, are known as pests of fruit trees in Europe and adjacent countries. Interestingly, some species are multivoltine, such as the pear psyllids <i>Cacopsylla pyri</i> and <i>C. pyricola</i>, while closely related psyllid species of pear, plum, and apple (<i>C. pyrisuga</i>, <i>C. pruni</i>, and <i>C. picta,</i> resp.) are univoltine and migrate between Rosaceae fruit tree species and evergreen conifers in higher regions. Therefore, the latter species have to cover great distances between their two diverging habitats. To uncover adaptations of the flight behavior and ability to the different life-history strategies, the flight of migrating (<i>C. pruni</i>) and non-migrating (<i>C. pyri and C. pyricola</i>) psyllids is investigated with a flight mill, showing that the seasonal migration of <i>C. pruni</i> correlates with the motivation to initiate long straight distance flights, indeed. Interestingly, <i>C. pyri</i> and <i>C. pyricola</i> showed great differences in their flight motivation and performance, indicating a greater dispersal propensity of <i>C. pyri</i> than <i>C. pyricola</i>. In addition, the determination of the protein, soluble carbohydrate, and glycogen content of pear psyllids revealed the consumption of carbohydrates during the psyllids’ flight. The content of the energetic resources is discussed in relation to their flight propensity.</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

Species-specific flight behavior of migrating and non-migrating European psyllid species

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月19日

查看全文
  • Jannicke Gallinger,
  • Sebastian Willem Wagner,
  • Jürgen Gross

摘要

Psyllids are small (2.5–4 mm), phytophagous, plant sap-feeding insects. Several species, in the genus Cacopsylla, are known as pests of fruit trees in Europe and adjacent countries. Interestingly, some species are multivoltine, such as the pear psyllids Cacopsylla pyri and C. pyricola, while closely related psyllid species of pear, plum, and apple (C. pyrisuga, C. pruni, and C. picta, resp.) are univoltine and migrate between Rosaceae fruit tree species and evergreen conifers in higher regions. Therefore, the latter species have to cover great distances between their two diverging habitats. To uncover adaptations of the flight behavior and ability to the different life-history strategies, the flight of migrating (C. pruni) and non-migrating (C. pyri and C. pyricola) psyllids is investigated with a flight mill, showing that the seasonal migration of C. pruni correlates with the motivation to initiate long straight distance flights, indeed. Interestingly, C. pyri and C. pyricola showed great differences in their flight motivation and performance, indicating a greater dispersal propensity of C. pyri than C. pyricola. In addition, the determination of the protein, soluble carbohydrate, and glycogen content of pear psyllids revealed the consumption of carbohydrates during the psyllids’ flight. The content of the energetic resources is discussed in relation to their flight propensity.