Lalat predator Coenosia humilis Meigen (Diptera: Muscidae) pada pertanaman kentang: pola aktivitas harian, pemangsaan, dan pengaruh aplikasi insekisida

• Main Authors: Harwanto Harwanto, Dadan Hidayana, Nina Maryana, Aunu Rauf
• Format: Article
• Language: English
• Published: Perhimpunan Entomologi Indonesia 2017-02-01
• Series: Jurnal Entomologi Indonesia
• Subjects: Potato, predator, leafminer flies, Coenosia humilis, Liriomyza huidobrensis.
• Online Access: http://jurnal.pei-pusat.org/index.php/jei/article/view/306
• ISSN: 1829-7722; 2089-0257

Field and laboratory studies were conducted on potatoes in pangalengan during April until October 2001, with the objectives to determine the daily activity pattern of the predatory fly <em>Coenosia</em> <em>humilis</em> Meigen (Diptera: Muscidae), to study the behavior of predator as well as level predation, and to evaluate effects of two cultural practices on population of flies. Our research revealed. that <em>C</em>. <em>humilis</em> were more active during morning and afternoon. Predatory flies attacked  by capturing the flying preys, and then sucked preys body content. The preys were generally small insects. About 60% of the preys were found to be agromyzed files, <em>Liriomyza huidobrensis</em> (Blanchard) (Diptera: Agromyzidae). In laboratory each predator consumed 23.5 leafminer flies per day. Insecticide application significantly suppressed the predator and at the same time promoted the leafminer population.