Abstract
The constraints in the cultivation of banana plants is the high number of pests that damage plants in vegetative vases. The study was conducted in the Farmers' Land Group of the United Society of Sampali Village, Percut Sei Tuan District, Deli Serdang Regency in May-July 2019. The research method used was descriptive analysis method using (random sampling). Observation parameters consisted of population density, pest attack rate, egg parasitoids, larva parasitoids, pupa parasitoids, parasitoids identification, species diversity index, species evenness index, and relative abundance. There are 4 types of parasitoids namely Braconidae sp 1 (Hymenoptera: Braconidae), Tachinidae sp 1 (Diptera: Tachinidae), Xanthopimpla gampsura (Hymenoptera: Ichneumonidae) and Brachymeria lasus Walker (Hymenoptera: Chalcididae). Erionota thrax L. parasitoids diversity index was 0.661369 in the low diversity level, and the highest relative abundance of Brachymeria lasus Walker was 86.87%, the attack rate of Erionota thrax on Barangan bananas reached 46%, the level of Erionota thrax on Kepok banana reached 32%.
Highlights
Abstrak Kendala dalam budidaya tanaman pisang adalah tingginya serangan hama yang merusak tanaman pada vase vegetatif
The study was conducted in the Farmers' Land Group of the United Society of Sampali Village, Percut Sei Tuan District, Deli Serdang Regency in May-July 2019
Observation parameters consisted of population density, pest attack rate, egg parasitoids, larva parasitoids, pupa parasitoids, parasitoids identification, species diversity index, species evenness index, and relative abundance
Summary
Pengumpulan data dilakukan dengan cara pengamatan langsung di lapangan. Umur tanaman pisang yang dijadikan sebagai sampel berumur 13 bulan. Kelompok telur yang ditemukan dikumpulkan dan disimpan dalam wadah plastik kemudian dipelihara di laboratorium. Jumlah telur yang ditemukan pada setiap tanaman. Setiap hari telur diamati untuk mengetahui apakah telur menetas atau timbul parasitoid. Larva yang ditemukan di lapangan dikumpulkan dan dipelihara di laboratorium dan diamati setiap hari untuk mengetahui keberadaan parasitoid. Selanjutnya, Pupa yang ditemukan di lapangan dikumpulkan lalu disimpan dalam wadah plastik dan dipelihara di laboratorium dan dihitung Jumlah pupa yang ditemukan pada setiap tanaman. Parasitoid yang muncul diidentifikasi dan dihitung jumlahnya. Jumlah pupa yang terparasit dan yang tidak terparasit dihitung untuk mengetahui tingkat parasitisasinya. Parasitoid yang keluar dari telur, larva atau pupa dimasukkan ke dalam alcohol 70%, kemudian dilakukan identifikasi dengan menggunakan kunci identifikasi serangga (Borror, Triplehorn, Johnson, 1996).
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