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All Journal Jurnal Entomologi Indonesia Journal of Science and Education Research
Harianto, Muhammad
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Languange, Linguistic, Communication & Media Social Sciences

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Asosiasi Baru New association between Cecidochares connexa (M.) (Diptera: Tephritidae) and local parasitoids: Revisiting classical biological controlantara Cecidochares connexa (M) (Diptera: Tephritidae) dengan Parasitoid Lokal: Sebuah Tinjauan Terhadap Pengendalian Hayati Klasik : Asosiasi baru antara Cecidochares connexa (M) (Diptera: Tephritidae) dan parasitoid lokal: Sebuah tinjauan terhadap pengendalian hayati klasik Harianto, Muhammad; Triwidodo, Hermanu; Agus, Nurariaty; Buchori, Damayanti
Jurnal Entomologi Indonesia Vol 21 No 1 (2024): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.21.1.63

Abstract

The gall fly Cecidochares connexa (L.) (Diptera: Tephritidae) was introduced in Bantimurung, Polewali Mandar Regency,  South Sulawesi in 1999, to control the Siam weed Chromolaena odorata, an invasive weed from Florida, United States. However, some previous studies have shown that C. connexa can be attacked by local predators and parasitoids, which can affect the effectiveness of C. connexa in the field. The objective of the research is to study the new interaction and association between  the introduced C. connexa, and local parasitoids. The research was conducted in April-December 2021 at two habitats namely open fields and cocoa plantations, in four villages of Polewali Mandar Regency. Purposive sampling was conducted to collect C. odorata infested by the gall flies. Thirty C. odorata samples were collected from three different sites at each habitat and each village. The galls were grouped into two different categories i.e. those with and with out holes. The galls with holes were then reared until the insects emerged and the insect specimens were identified. The research results showed that the gall numbers, healthy and parasitized C. connexa at opened areas were significantly higher as compared to cocoa plantations. Parasitism phenomenon indicated the new interaction and association between the C. connexa with the local parasitoids. The parasitization rate of C. connexa in the opened fields (23.24%) was not significantly with in the cocoa plantations (28.84%). On the parasitized C. connexa were found four families of parasitoids i.e. Eulophidae, Braconidae, Eupelmidae, and Ormyridae. The dominant parasitoid found was Quadrastichus sp.1, with the parasitization rate of 14% in open fields and 10% in cocoa plantations.
Preferensi Oviposisi Plutella xylostella (L) Pada Dua Struktur Permukaan Berbeda Dengan Beberapa Jenis Ekstrak Tanaman Anggita, Sri Ayu; Harianto, Muhammad; Khalidatunnisa, Besse; Sartika, Dewi
Journal of Science and Education Research Vol. 4 No. 2 (2025): Journal of Science and Education Research
Publisher : Yayasan Pendidikan Insan Mulia Utan Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62759/jser.v4i2.313

Abstract

Plutella xylostella (L) merupakan serangga yang memanfaatkan tumbuhan famili Brassicaceae sebagai makanannya. Preferensi dan perkembangan P. xylostella pada berbagai jenis tumbuhan dipengaruhi oleh jumlah dan jenis senyawa kimia yang terdapat pada tumbuhan. Penelitian ini bertujuan untuk mengetahui preferensi oviposisi P. xylostella  pada dua struktur permukaan berbeda dengan beberapa jenis ekstrak tanaman. Penelitian dilakukan dengan menyiapkan ekstrak tanaman uji yang disemprotkan pada setiap jenis media. Kemudian imago P. xylostella dimasukkan ke dalam kurungan yang telah berisi media yang berbeda pada setiap kurungan. Pengamatan dilakukan setelah 2x24 jam. Berdasarkan hasil penelitian, jumlah telur yang diletakkan pada beberapa media dengan ekstrak berbeda menunjukkan tidak ada perbedaan nyata. Jumlah telur terbanyak pada media dengan ekstrak Kol yaitu 32,67 ± 23,95 butir telur. Rata-rata jumlah yang telur yang diletakkan oleh P. xylostella pada media dengan permukaan halus lebih sedikit dibandingkan dengan media kasar dan berbeda nyata pada uji tukey dengan jumlah 32,75 ± 21,32 butir telur.
Co-Authors Anggita, Sri Ayu Besse Khalidatunnisa DAMAYANTI BUCHORI DEWI SARTIKA Hermanu Triwidodo NURARIATY AGUS