Feeding studies on gynoparae, males and apterous virginoparae of Myzus persicae on potato by electrical penetration graph

• Published in: Journal of applied entomology (1986) Vol. 128; no. 8; pp. 522 - 527
• Main Authors: Margaritopoulos, J.T, Souri, A, Tsitsipis, J.A
• Format: Journal Article
• Language: English
• Published: Berlin, Germany Blackwell Verlag GmbH 01.09.2004; Blackwell
• Subjects: Aphididae; Aphidoidea; apterae; Biological and medical sciences; duration; electrical penetration graph; electronic equipment; feeding behavior; Fundamental and applied biological sciences. Psychology; gynoparae; Hemiptera; host plant; ingestion; males; morphs; Myzus persicae; phloem; Phytopathology. Animal pests. Plant and forest protection; potatoes; probing; probing behavior; Protozoa. Invertebrates; recording equipment; Records, symptoms, damages, economic importance, population surveys; sap; Solanaceae; Solanum tuberosum; stylet penetration; xylem; Insecta; Apterous; Electrical method; Male; Myzus persicae; Pest; Homoptera; Pest behavior; Dicotyledones; Host plant; Angiospermae; Aphididae; Buccal stylet; Female; Solanaceae; Parthenogenesis; Aphidoidea; Feeding behavior; Solanum tuberosum; Penetration; Vascular bundle; Arthropoda; Spermatophyta; Tuber plant; Invertebrata
• ISSN: 0931-2048; 1439-0418
• DOI: 10.1111/j.1439-0418.2004.00885.x

:  Feeding behaviour of parthenogenetic apterae, post‐teneral gynoparae and males of a holocyclic parthenogenetic lineage of Myzus persicae (Sulzer) (Hem., Aphididae) was studied on potato plants, Solanum tuberosum L. (Solanaceae) by DC‐electrical penetration graph recording. Differences were observed between morphs during the 7‐h recordings, specifically in the first phase of subcuticular probing and in xylem and phloem‐related activities. The time required for the first penetration and first cell puncture of the non‐vascular tissues was shorter in apterae than in gynoparae and males. Apterae more often showed phloem activities and sustained sap ingestion (100%) than winged morphs (ca. 25%). In addition, phloem ingestion was much longer in apterae than in winged morphs, 3458 s and 25–70 s respectively. In contrast, winged morphs spent 14–21% of the available time ingesting sap from xylem while in apterae xylem sap uptake was only for 2% of the time. Furthermore, the data showed that males perform in general all the feeding behaviours that other conspecific morphs exhibit. The differences in feeding behaviour among morphs of M. persicae are discussed in relation to host specialization and to their possible involvement in non‐persistent transmission of viruses.