Evaluasi Lanjut Penyebaran Lalat Argentina sebagai Pengendali Gulma Siam

https://doi.org/10.22146/jpti.11750

Tri Harjaka(1*), Soeprapto Mangoendihardjo(2)

(1) Fakultas Pertanian Universitas Gadjah Mada
(2) Fakultas Pertanian Universitas Gadjah Mada
(*) Corresponding Author

Abstract


The stem-galling fly, Cecidochares connexa is one of the natural enemies introduced into Indonesia for the control Siam weed (Chromolaena odorata). The research investigated to know the spread and establisment of C. connexa in Central Java and East Java. Survey was done in six districts started from Gunung Kidul until Madiun for sampling of Siam weed stems and calculate the parasitations of C. connexa. The results showed that C. connexa as natural enemies of Siam weed has established in Central Java and East Java with parasitation of stem reached 54.33%. C. connexa have spread more than 200 km from first site-released location in Wanagama I, Yogyakarta.

Cecidochares connexa merupakan salah satu jenis serangga musuh alami yang pernah diintroduksikan ke Indonesia untuk mengendalikan gulma siam (Chromolaena odorata). Penelitian bertujuan untuk mengetahui jangkauan penyebaran C. connexa di sekitar Yogyakarta ke arah timur dan utara dari lokasi penyebaran awal di hutan Wanagama I Yogyakarta. Survei dilakukan di Jawa Tengah dan Jawa Timur pada enam kabupaten di sebelah timur lokasi pelepasan lalat C. connexa, yaitu Kabupaten Gunung Kidul, Wonogiri, Ponorogo, Madiun, Ngawi, dan Pacitan. Tingkat kemapanan lalat C. connexa dihitung berdasarkan persentase parasitasinya dengan mengamati keberadaan puru. Hasil menunjukan bahwa lalat C. connexa telah mapan di Jawa Tengah dan Jawa Timur dengan tingkat parasitasi mencapai 54,33%. Lalat tersebut telah berhasil menyebar pada radius lebih dari 200 km dari lokasi pelepasan awal di hutan Wanagama I.


Keywords


Cecidochares connexa; gulma siam; musuh alami; natural enemies; penyebaran; Siam weed; spread

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References

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DOI: https://doi.org/10.22146/jpti.11750

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