PENGARUH APLIKASI BERBAGAI JENIS INSEKTISIDA TERHADAP ULAT BAWANG (Spodoptera exigua Hubn) DAN PRODUKSI BAWANG MERAH VARIETAS BIMA DAN TINOMBO
| Main Authors: | Shahab, Shahabuddin, Mahfudz, Mahfudz |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
AGROLAND
, 2015
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| Online Access: |
http://jurnal.untad.ac.id/jurnal/index.php/AGROLAND/article/view/3591 http://jurnal.untad.ac.id/jurnal/index.php/AGROLAND/article/view/3591/2604 |
Daftar Isi:
- This study aimed to examine the effect of various insecticides against beet armyworm pest (S.exigua) and onion yield. The experiment were conducted in Poso district and arranged using arandomized block design (RBD) with two-factor treatment and tree replicates each. The first factorwas the type of Insecticides (I) consists of three treatments and one control, namely: (1) Noinsecticides (I0), (2) botanical insecticides (neem leaf extract) 50 g/l of water (I1). (3) Biologicalinsecticides, the fungus Beauveria bassiana 10 g/l of water (I2) and (4) chemical insecticides,Klensect 200 EC 1 ml/l of water (I3). The second factor was onion varieties composed of: (1) Bima(V1) and (2) Tinombo (V2) vartieties. Variabel measured included: S.exigua population density,percentage of attacks of S.exigua, and dry weight of tuber. The results showed that insecticidestreatment significantly affected the population density and S.exigua attacks on onion crops in thedistrict of Poso. The effectiveness of chemical and botanical insecticides on suppressing thepopulation density and the attack of S. exigua were nearly similar and significantly higher than thatof biological insecticide. The population density and percentage of S. exigua attacks did not differsignificantly in both varieties but dry weight of tuber was higher in Bima variety. There was nointeraction effect between insecticides and onion variety on population density and attackpercentage of S. exigua as well as on tuber weight.Key words: Insecticides, onion, S. exigua variety, and yield.