Identifikasi dan Tingkat Serangan Lalat Buah Pada Tanaman Jambu Biji (Psidium guajava L.) di Kabupaten Padang Pariaman

Abukhari, Abukhari (2016) Identifikasi dan Tingkat Serangan Lalat Buah Pada Tanaman Jambu Biji (Psidium guajava L.) di Kabupaten Padang Pariaman. Diploma thesis, Universitas Andalas.

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Abstract

Lalat buah merupakan salah satu hama yang menyerang jambu biji. Tujuan penelitian adalah untuk mengetahui jenis dan tingkat serangan lalat buah pada tanaman jambu biji di Kabupaten Padang Pariaman. Penelitian menggunakan metode Purposive random sampling. Kriteria pengambilan sampel adalah tanaman jambu biji berumur 3 tahun yang sudah beproduksi, buah jambu biji tidak dibungkus, dan jenis jambu biji merah. Parameter yang diamati adalah kondisi pertanaman, persentase tanaman terserang, persentase buah terserang, populasi lalat buah dan jenis lalat buah. Hasil penelitian menunjukan jenis lalat buah yang ditemukan pada pertanaman jambu biji di Kabupaten Padang Pariaman adalah Bactrocera carambolae dan Bactrocera albistrigata. Pada Kecamatan VII Koto Sungai sariak terdapat kedua jenis lalat buah, sedangkan di Kecamatan Nan Sabaris hanya terdapat Bactrocera carambolae. Persentase tanaman terserang lalat buah di Kecamatan VII Koto Sungai Sariak 75 % sedangkan di Kecamatan Nan Sabaris 62,5 %. Persentase buah terserang tertinggi terdapat di Kecamatan VII Koto Sungai Sariak 34,61 % dan terendah pada Kecamatan Nan Sabaris 27,15 %. Kata kunci : Tingkat serangan, Bactrocera carambolae, Bactrocera albistrigata, Jambu biji. IDENTIFICATION AND LEVEL OF FRUIT FLIES ATTACK ON PLANT GUAVA (Psidium guajava L.) IN PADANG PARIAMAN DISTRICT Abstract The fruit fly is a pest that attacks guava. The purpose of research is to determine the type and level of fruit fly attacks on the plant guava in Padang Pariaman District. The study used purposive random sampling method. Sampling criteria guava plant is 3 years old who are already in production, guava fruit is not wrapped, and the type of guava . Parameters measured were planting conditions, the percentage of infected plants, the percentage of infected fruit, the fruit fly and the type of fruit flies. The results showed the type of fruit fly was found in guava plantation in Padang Pariaman District is Bactrocera carambolae and Bactrocera albistrigata. In the District VII Koto Sungai Sariak there are two types of fruit flies, whereas in District Nan Sabaris there is only Bactrocera carambolae. The percentage of plants attacked by fruit flies in District VII Koto Sungai Sariak 75% while in the District of Nan Sabaris 62.5%. The percentage of infected fruit was highest in the District VII Koto Sungai Sariak 34.61% and the lowest in the District Nan Sabaris 27.15%. Keywords: Attack rate, Bactrocera carambolae, Bactrocera albistrigata, guava.

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