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http://dx.doi.org/10.5656/KSAE.2016.11.0.069

Morphological Characteristics of Thecodiplosis japonensis (Diptera: Cecidomyiidae) Larvae in Pine Forests Around Onsan Industrial Complex in Ulsan, Korea  

Lee, Chong-Kyu (Department of Forest Resources, Gyeongnam National University of Sciences and Technology)
Publication Information
Korean journal of applied entomology / v.56, no.1, 2017 , pp. 77-81 More about this Journal
Abstract
The results from our investigation showed differences in pine needle damage by Thecodiplosis japonensis Uchida et Inouye and indicate serious environmental pollution caused by a petrochemical industrial complex. The gall formation rate by T. japonensis near the industrial complex was 47.94% compared to 9.94% in the site farthest from the complex. The average length of pine needles damaged by T. japonensis near the industrial complex and farthest site were 4.5 cm and 4.9 cm, respectively. The average number of larvae in pine needle galls near the industrial complex and farthest site were 3.4 and 2.4, respectively. The average body length and width of fullgrown larvae near the industrial complex were 2.40 mm and 0.7 mm, respectively, whereas larvae in the site farthest from the complex were 2.45 mm in length and 0.71 mm in width.
Keywords
Environmental pollution; Thecodiplosis japonensis; Gall formation rate; Industrial complex; Fullgrown Larvae;
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