Evaluation of the effectiveness of integrated management and mating disruption in controlling gypsy moth Lymantria dispar (Lepidoptera: Lymantriidae) populations

GOODARZ HAJIZADEH, MOHAMMAD REZA KAVOSI

 Abstract.  Hajizadeh  G,  Kavosi  MR.  2012.  Evaluation  of  the  effectiveness  of  integrated  management  and  mating  disruption  in controlling gypsy moth Lymantria dispar (Lepidoptera: Lymantriidae) populations. Nusantara Bioscience 4: 27-31. This study was conducted during 2008 and 2009 in Daland National Park (north of Iran) to compare the effectiveness of mechanical control used in combination with mating disruption (integrated management) and only mating disruption in controlling gypsy moth, Lymantria dispar (L.) (Lepidoptera: Lymantriidae). Male moths and egg mass counts were taken before (2008) and after (2009) the two treatments were applied. In sites with integrated management and with mating disruption only, 1,828 and 1,793 egg masses/tree, and 412.75 and 207.75 male moths/trap were observed, respectively. Both the numbers of egg masses/tree and of male moths/trap were significantly lower in sites with integrated management than in sites with only mating disruption. This study shows that integrated management was more effective than mating disruption in reducing infestation levels in the study site.

Key words: egg masses, integrated management, Lymantria dispar, mating disruption, mechanical method, pheromone traps

Abstrak. Hajizadeh G, Kavosi MR. 2012. Evaluasi tentang efektifitas manajemen terpadu dan gangguan perkawinan dalam mengontrol populasi ngengat gipsi Lymantria dispar (Lepidoptera: Lymantriidae). Nusantara Bioscience 4: 27-31. Penelitian ini dilakukan selama tahun 2008 dan 2009 di Taman Nasional Daland (bagian utara Iran) untuk membandingkan efektivitas pengendalian mekanis yang digunakan dikombinasi dengan gangguan perkawinan (manajemen terpadu) dan hanya gangguan perkawinan saja dalam pengendalian ngengat gipsi, Lymantria dispar (L.) (Lepidoptera: Lymantriidae). Penghitungan ngengat jantan dan jumlah massa telur dilakukan sebelum (2008) dan setelah (2009) dua perlakuan diterapkan. Di lokasi dengan manajemen terpadu dan dengan gangguan perkawinan saja, terdapat 1.828 dan 1.793 massa telur/pohon, serta 412,75 dan 207,75 ngengat jantan/perangkap. Jumlah massa telur/pohon dan ngengat  jantan/perangkap  secara  signifikan  jauh  lebih  rendah  pada  lokasi  dengan  manajemen  terpadu  daripada  di  lokasi  dengan gangguan perkawinan saja. Studi ini menunjukkan bahwa manajemen terpadu lebih efektif daripada gangguan perkawinan dalam mengurangi tingkat serangan hama di lokasi penelitian.

Kata kunci: massa telur, manajemen terpadu, Lymantria dispar, gangguan perkawinan, cara mekanik, perangkap feromon

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