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Rusli Rustam
Departement of Agrotechnology, Agriculture Faculty, Riau University, Pekanbaru, Riau, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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UJI BEBERAPA KONSENTRASI EKSTRAK DAUN MIMBA (Azadirachta indica A. Juss) UNTUK MENGENDALIKAN HAMA ULAT PENGGULUNG DAUN (Strepsicrates sp.) PADA TANAMAN EUKALIPTUS (Eucalyptus sp.) DI PEMBIBITAN Saputri, Marisha; Rustam, Rusli; Salbiah, Desita
Jurnal Agroekoteknologi Vol 12, No 2 (2020)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v12i2.10853

Abstract

Leaf-rolling caterpillars (Strepsicrates sp.) are the main pests that attack eucalyptus plants during breeding. Pest Control Strepsicrates sp. still using synthetic chemical pesticides. The impact of the use of synthetic chemical pesticides is harmful to the environment, so the use of vegetable pesticides from neem leaf extracts is an alternative in pest control Strepsicrates sp. This study aimed to obtain an extract of neem leaves which is effective in controlling the pest Strepsicrates sp. in eucalyptus plants. This research was conducted in the experimental garden and pest laboratory of the Faculty of Agriculture, Riau University. The study used a completely randomized design (CRD) with 6 treatments and 4 replications, to obtain 24 units of the experiment. Each unit ofexperiment was infested with 10 larvae of Strepsicrates sp. instar 3. The treatments given are some concentrations of neem leaf extracts namely M0: 0 gl-1 water, M1: 20 gl-1 water, M2: 40 gl-1 water, M3: 60 gl-1 water, M4: 80 gl- 1 water, M5: 100 gl-1 water. The parameters observed were initial time of death, daily mortality, total mortality, attack intensity, and daily air temperature and humidity at the study site. Data were analyzed statistically using analysis of variance and further tests with Honestly Significant Difference (BNJ). The results showed that neem leaf extract with a concentration of 40 g.l-1 water was effective in killing Strepsicrates sp. with a percentage of total mortality of 91.67%. Keyword: Strepsicrates sp., Eucalyptus, Neem leaf extract
UJI BEBERAPA KONSENTRASI EKSTRAK TEPUNG AKAR TUBA (Derris elliptica Benth.) TERHADAP MORTALITAS LARVA Helicoverpa armigera Hubner (Lepidoptera: Noctuidae) HAMA PADA JAGUNG MANIS Ibrahim, Mukhlis; Rustam, Rusli
Jurnal Agroekoteknologi Vol 12, No 2 (2020)
Publisher : Jurusan Agroekoteknologi Fakultas Pertanian Untirta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33512/jur.agroekotetek.v12i2.10854

Abstract

Corn is one of the important food crops besides rice. The variety of corn that is in great demand by the public is sweet corn (Zea mays saccharata Sturt). The main pest that often attacks sweet corn plants is Helicoverpa armigera Hubner. Pest control can be carried out using botanical insecticides of tuba roots (Derris elliptica benth.). This research aims to obtain a concentration of tuba root flour extract which was effective against Helicoverpa armigera Hubner. The research was conducted at the Plant Pest Laboratory and Organic Chemistry and Natural Material Laboratory, Faculty of Engineering, Riau University. It was started from January to March 2020. This research used a completely randomized design(CRD) with five treatments and four replications so that 20 experimental units were obtained. The treatments given were various concentrations of tuba root flour extract, namely: 0%, 0.25%, 0.50%, 0.75% and 1%. The results showed that the difference in the concentration of tuba root flour extract had a significant effect on killing Helicoverpa armigera larvae. The concentration of 0.75% is effective in controlling Helicoverpa armigera larvae because it has been able to kill Helicoverpa armigera by 85% with the fastest initial death time at 3.75hours, lethal time 50 at 17.00 hours after application. Keywords: Root tuba, Helicoverpa armigera, Botanical insecticide
Co-Authors ', Wahyudianto Abidin, Fitriani Agus Sutikno AUNU RAUF Benny Salvino Andrianto, Benny Salvino DADANG DADANG Dede Maryana Desita Salbiah Hennie Laoh Husni dan Zulfanazli Pudjianto Alfian Rusdy Ibrahim, Mukhlis J. Hennie Laoh Jeltje Hennie Laoh Kristian H, Kristian H Laila, Jamiatul Melli Fitriani Raimon Raimon, Raimon Ravika Mahera, Ravika Riadi Permana Riaman Sembiring Saputri, Marisha Wardati, Wardati Yetti Elfina