Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

Copyright © Wydawnictwo Uniwersytetu Przyrodniczego we Wrocławiu, ISSN 1505-0297

Golan K. 2008. HONEYDEW EXCRETION ACTIVITY IN Coccus hesperidum L. (Hemiptera, Coccinea), EJPAU 11(2), #24.
Available Online: http://www.ejpau.media.pl/volume11/issue2/abs-24.html

ABSTRACT

In the present study honeydew excretion process was investigated using modified hygrothermographs for daily measures, following the method applied in the 80’s by Koteja. Diurnal activity of honeydew excretion in different developmental stages of Coccus hesperidum was analyzed. Maximum activity of Coccus hesperidum honeydew production has been observed at afternoon and night hours. The difference size and density of honeydew droplets in relation to the scale insects developmental stage and diurnal rhythm of Coccus hesperidum has been noted.

Key words: Coccus hesperidum, Coccidae, scale insects, threshold coccids, honeydew, honeydew excretion activity, droplet volume, droplet density, droplet diameter.

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Katarzyna Golan
Department of Entomology,
University of Life Sciences in Lublin, Poland
7 Leszczyńskiego, 20-060 Lublin, Poland
Phone: (+48 81) 532 30 47
email: katarzyna.golan@up.lublin.pl

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