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Journal : Plumula : Berkala Ilmiah Agroteknologi

Efek Refugia terhadap Keberadaan Musuh Alami di Sawah di Desa Kuluran, Kalitengah, Lamongan Noni Rahmadhini; Didik Utomo Pribadi; Arika Purnawati
Plumula : Berkala Ilmiah Agroteknologi Vol 6 No 2 (2018): Plumula : Berkala Ilmiah Agroteknologi
Publisher : UPN VETERAN JAWA TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (339.466 KB) | DOI: 10.33005/plumula.v6i2.8

Abstract

Refugia is a microhabitat for natural enemies (predators and parasitoid) to breed that is planted around cultivated plants. The purpose of this study was to determine the effect of the existence of refugia on the abundance of natural enemies in the fields. The method used is the survey method. Observation of natural enemy populations is carried out visually and directly observed. The trap tool used is pitfall and sweep net. The results of the observation showed that 2 families of insects were Branconidae which acted as parasitoid and Collembola which acted as decomposers.
UJI ANTAGONISME BAKTERI ENDOFIT ASAL TANAMAN PERTANIAN DATARAN RENDAH PADA MEDIUM AGAR Arika Purnawati; Noni Rahmadhini; Elly Syafriani
Plumula : Berkala Ilmiah Agroteknologi Vol 7 No 1 (2019): Plumula : Berkala Ilmiah Agroteknologi
Publisher : UPN VETERAN JAWA TIMUR

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (579.721 KB) | DOI: 10.33005/plumula.v7i1.17

Abstract

This research aims to obtain endophytic bacterial candidates from lowland agricultural plants that have potential as biological control agents for Ralstonia solanacearum on tomato plants. Bioassay was carried out using the soaking method of tomato seeds in the suspension of endophytic bacteria (108 cfu / ml) during 60 minutes then R. solanacearum was 24 hours old (108 cfu / ml) mixed with 6 ml of liquid agar 0.6% and poured onto the seed surface. Bioassays were observed at 24, 48, 72 and 96 hours. The study was conducted using Completely Randomized Design (CRD) with 10 endophytic bacterial isolates as single treatment factor and repeated 3 times. The results obtained showed that 10 endophytic bacterial isolates were able to inhibit the growth of R. solanacearum in agar medium, and the highest clear zone size was formed by H, I, J