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Development of Simple Monitoring Techniques of Fungus Gnats, Bradysia agrestis (Diptera: Sciaridae) Larva and Adult in Sweet Pepper Greenhouse  

전흥용 (원예연구소 원예환경과)
김형환 (원예연구소 원예환경)
양창열 (원예연구소 원예환경)
조명래 (원예연구소 원예환경)
임명순 (원예연구소 원예환경)
추호렬 (경상대학교 농업생명과학연구원)
Publication Information
Korean journal of applied entomology / v.43, no.2, 2004 , pp. 129-134 More about this Journal
Abstract
A simple and easy method was developed to monitor fungus gnats, Bradysia agrestis on sweet pepper in greenhouses. The larvae of B. agrestis were more attracted to potato discs than other sweetpotato, carrot, garlic, radish, and onion discs. The average numbers of B. agrestis found in each disc were 9.7 (potato), 6.0 (sweetpotato), 4.3 (carrot), 0.7 (garlic), 3.8 (radish), and 1.0 (onion). The number of larvae also increased by the size of disc surface and resulted in 2.1 larvae in 10${\times}$10${\times}$10 mm, 3.4 larvae in 20${\times}$20${\times}$10mm, and 3.9 larvae in 30${\times}$30${\times}$10 mm. The adults were more attracted to a yellow sticky trap (50.0 numbers) than a blue (18.0 numbers) or a white (3.7 numbers) traps. The optimal height for installing sticky trap in the greenhouse was determined as less than 50 cm from the rockwool bed based on the adults caught in the traps; 50.0 in less than 50 cm, 4.3 in 50-100 cm, and 2.0 in more than 100 cm height.
Keywords
Sweet pepper; Fungus gnats; Brudysia agrestis; Monitoring; Potato discs; Sticky trap;
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