scholarly journals UJI BEBERAPA KONSENTRASI EKSTRAK KULIT JENGKOL (Pithecellobium lobatum Benth) UNTUK MENGENDALIKAN ULAT DAUN BAWANG (Spodoptera exigua Hubner)

2021 ◽  
Vol 4 (2) ◽  
pp. 79-89
Author(s):  
Divasyah Luthfi Nasution ◽  
Rusli Rustam
Keyword(s):  
Spodoptera Exigua ◽  
Total Mortality ◽  
Beet Armyworm ◽  
Initial Time ◽  
Botanical Pesticides ◽  
Randomized Design ◽  
Plant Pest ◽  
Lethal Time ◽  
Completely Randomized Design ◽  
Production Losses

Beet armyworm (Spodoptera exigua Hubner) is one of the main problems in shallot cultivation which can cause production losses of up to 100% if not controlled. The use of botanical pesticides from jengkol rind extract (Pithecellobium lobatum Benth) is a solution to control beet armyworms (Spodoptera exigua Hubner). This study aims to obtain a concentration of jengkol rind extract which is effective to controlling beet armyworm. The study was conducted at the Laboratory of Plant Pest and Experimental Garden at the Faculty of Agriculture, University of Riau from January until March 2020. This research was conducted experimentally using a completely randomized design (CRD) with five treatments and four replications. The treatments given were jengkol rind extract concentration   0 g.l-1 water, 25 g.l-1 water, 50 g.l-1 water, 75 g.l-1 water and 100 g.l-1 water. The results indicate that the application of jengkol rind extract 100 gl-1 water is an effective concentration to control beet armyworm with an initial time of death 12.75 hours, a lethal time 50 at 37.50 hours, the highest daily mortality on the second day at 37.5% and total mortality is 92.5% in the 5 days after application.

scholarly journals Uji Beberapa Dosis Tepung Daun Gamal (Gliricididia sepium Jacq.) Terhadap Sitophilus oryzae L. Pada Beras Di Penyimpanan

2018 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
Rusli Rustam ◽  
Agus Sutikno ◽  
Jamiatul Laila
Keyword(s):  
Sitophilus Oryzae ◽  
Total Mortality ◽  
Gliricidia Sepium ◽  
Time Of Death ◽  
Randomized Design ◽  
Plant Pest ◽  
Leaf Powder ◽  
Lethal Time ◽  
Completely Randomized Design ◽  
Dose Levels

Rice is one of serealea comodity that susceptible with pest storage. One of the pest that often attack the rice in storage is Sitophilus oryzae L. The alternative for control S. oryzae L. as fumigant which enviromentally sound is Gliricidia sepium Jacq. as organic insecticide. This research aims to get the best dose G. sepium Jacq. leaf powder to control S. oryzae L. pest in rice storage. This research conducted at Laboratory of Plant Pest, Faculty of Agriculture, University of Riau, Pekan baru from Mei until Juni 2016. This research arranged experimentally by using Completely Randomized Design consisting of 5 treatments and 4 replications. The treatment consist of 5 dose levels were 0 g/100 g rice, 2 g/100 g rice, 4 g/100 g rice, 6 g/100 g rice and 8 g/100 g rice. The result showed that giving of G. sepium Jacq. leaf powder with dose 8 g/100 g rice causes time of death beginningS. oryzae L. during 31.50 hours after application, lethal time 50 during 282.8 hours after application, total mortality was 70%, amount of generation was 9,75 beetles and  decrease of seed weight’s rice was 1.08%.

UJI BEBERAPA KONSENTRASI EKSTRAK DAUN MIMBA (Azadirachta indica A. Juss) UNTUK MENGENDALIKAN LARVA Lamprosema indicata F. PADA TANAMAN KEDELAI (Glycine max L. Merill)

2021 ◽  
Vol 35 (1) ◽  
pp. 1-6
Author(s):  
Desita Salbiah ◽  
Nelly Andria
Keyword(s):  
Glycine Max ◽  
Azadirachta Indica ◽  
Total Mortality ◽  
Botanical Insecticide ◽  
Alternative Control ◽  
Death Time ◽  
Randomized Design ◽  
Plant Pest ◽  
Glycine Max L ◽  
Completely Randomized Design

The Lamprosema indicata Fabricius larvae is one of the main pests in soybean plantations, which cause up to 80% damage. The alternative control is the use of neem Leafs (Azadirachta indica A. Juss) which have the potential as a botanical insecticide. This research aims to find out the effective concentration of neem Leafs extract to control Lamprosema indicata F. larvae on soybean (Glycine max L. Merill). The research was conducted at the Laboratory Plant Pest and Experimental Farm in the Faculty of Agriculture, University of Riau from May to October 2018. The research was carried out by using a completely randomized design (CRD) with 6 treatments and 4 replications to obtain 24 experimental units. Treatment consist of several concentrations of neem leafs extract 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1 water, 80 g.l-1 water and 100 g.l-1 water. The results showed that the concentration of 80 g.l-1 water was effective to control the L. indicata larvae with an initial death time of 5.50 hours and total mortality was 87.50%.

scholarly journals UJI BEBERAPA KONSENTRASI EKSTRAK UMBI GADUNG (Dioscorea hispida Dennst) TERHADAP HAMA KEONG MAS (Pomacea canaliculata L.)

2021 ◽  
Vol 37 (1) ◽  
pp. 9-16
Author(s):  
Alfaizal ◽  
Hafiz Fauzana ◽  
Desita Salbiah
Keyword(s):  
Total Mortality ◽  
Lowland Rice ◽  
Pomacea Canaliculata ◽  
Behavior Changes ◽  
Botanical Pesticides ◽  
Randomized Design ◽  
Lethal Time ◽  
And Behavior ◽  
Tuber Extract ◽  
Daily Total

Riau is one of a lowland rice producing provinces. One of the pests that can reduce rice productivity is the golden snail (Pomacea canaliculata L.). The solution for controlling the golden snail (P. canaliculata L.).  Pest uses environmentally friendly control techniques, namely botanical pesticides of gadung tubers. This study aims to obtain a concentration of the extract of gadung tuber flour (Dioscorea hispida Dennst) which is effective in controlled the attack of golden snails (P. canaliculata L.) in lowland rice plants. This research was conducted experimentally using completely randomized design (CRD) consisting of five treatments and four replications, in order to obtain 20 experimental units.  The treatments consisted of concentrations of gadung tubers extract, namely 0 g.l-1, 25 g.l-1, 50 g.l-1, 75 g.l-1, and 100 g.l-1.  Observations included the initial dst time to snail death, lethal time 50 (LT 50), daily total mortality, and behavior changes in behavior. The results showed that the application of 100 g.l concentration of gadung tuber extract treatment caused the highest total mortality of golden snails (P. canaliculata L.) of 74.99%, but it was not effective yet in controlling the golden snail pest because it was not able to kill the golden snail above 80%.

scholarly journals UJI BEBERAPA KONSENTRASI EKSTRAK TEPUNG DAUN SRIKAYA (Annona squamosa L.) UNTUK MENGENDALIKAN HAMA Aphis gossypii Glover PADA TANAMAN CABAI

2021 ◽  
Vol 12 (1) ◽  
pp. 9
Author(s):  
Hafiz Fauzana ◽  
Rizky Aulina Harahap
Keyword(s):  
Aphis Gossypii ◽  
Total Mortality ◽  
Effective Concentration ◽  
Initial Time ◽  
Annona Squamosa ◽  
Randomized Design ◽  
Plant Pest ◽  
Aphis Gossypii Glover ◽  
Leaf Powder ◽  
The Right

Aphis gossypii Glover is the main pest that attacks chili plants. Control efforts that are often carried out are by using synthetic insecticides. Safe pest control is the use of vegetable insecticides. Srikaya is a plant that can be used as a botanical insecticide. The purpose of this study was to obtain an effective concentration of srikaya leaf powder extract against A. gossypii pest mortality. This research was conducted at the Plant Pest Laboratory of the Faculty of Agriculture, Riau University from March to July 2019. The study was conducted experimentally using a completely randomized design (CRD) with 6 treatments and 4 replications. The treatments given were extracts of srikaya leaf flour with the following concentrations: Srikaya flour with a concentration of 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1 water, 80 g.l-1 water, 100 g.l-1 water. The parameters observed were the initial time of death of Aphis gossypii, Lethal time 50 (LT50), daily mortality, total mortality, Lethal concentration (LC50), temperature and humidity. The results of this study indicate that the application of the extract of srikaya leaf flour (Annona squamosa L.) on concentration of 40 gl-1 srikaya leaf meal was an effective concentration to control A. gossypii which can cause total mortality of 82.5% with LC 50% is 1.37% or equivalent to 13.7 gl-1, and the right concentration to kill. 95% of pests is 6.37% or equivalent to 63.7 gl-1.

scholarly journals UJI BEBERAPA KONSENTRASI EKSTRAK BIJI PINANG (Areca catechu L.) UNTUK MENGENDALIKAN HAMA ULAT JENGKAL (Chrysodeixis chalcites Esper) PADA TANAMAN KEDELAI (Glycine max L.)

2021 ◽  
Vol 35 (2) ◽  
pp. 51-58
Author(s):  
Desita Salbiah ◽  
Rusli Rustam ◽  
Forti Senorita Daeli
Keyword(s):  
Glycine Max ◽  
Total Mortality ◽  
Death Time ◽  
Randomized Design ◽  
Plant Pest ◽  
Areca Catechu ◽  
Glycine Max L ◽  
Lethal Time ◽  
Chrysodeixis Chalcites ◽  
Soybean Plants

Chrysodeixis chalcites Esper is the main pests in soybean plants cultivation that can cause damage up to 90%.  One of controlling was done by using areca nuts (Areca catechu L.) which has a potential as a botanical insecticide. This study aimed to obtain effective concentrations of areca nuts extract to control Chrysodeixis chalcites Esper pests on soybean plants (Glycine max L.). This research was conducted at the Laboratory of Plant Pest and Experimental Farm, Faculty of Agriculture, Riau University, Pekanbaru from August to November 2018. The study was conducted experimentally using a completely randomized design (CRD), which consisted of five treatments and four replications, namely: the concentration areca nuts extract 0 g.l-1 water, 20 g.l-1 water, 40 g.l-1 water, 60 g.l-1 water, and 80 g.l-1 water. The results showed that the concentration of 80 g.l-1 of water was an effective concentration to control Chrysodeixis chalcites pest with an initial death time of 14 hours, lethal time 50 29.25 hours after application, and total mortality of 87.50%.

scholarly journals Effect of aqueous neem seed extract via irrigation on larvae of Liriomyza sativae in melon crop

2018 ◽  
Vol 36 (3) ◽  
pp. 353-356 ◽  
Author(s):  
Ewerton M Costa ◽  
Francisco EL Silva ◽  
Elton L Araujo
Keyword(s):  
Larval Mortality ◽  
Total Mortality ◽  
Seed Extract ◽  
Neem Seed ◽  
Liriomyza Sativae ◽  
Randomized Design ◽  
Soil Irrigation ◽  
Completely Randomized Design ◽  
Pupal Mortality ◽  
Neem Seed Extract

ABSTRACT The leafminer [Liriomyza sativae (Diptera: Agromyzidae)] is one of the main pests of melon crop (Cucumis melo) in the states of Rio Grande do Norte and Ceará. Thus, adopting strategies to control this destructive insect is essential. The aim of this study was to evaluate the effect of aqueous neem seed extract, applied to soil via irrigation, on leafminer larvae, in the melon crop. An experiment was conducted in greenhouse, in completely randomized design, consisting of five treatments (four doses of aqueous neem seed extract: 1; 3; 5 and 10 g/100 mL) and the control consisting only of distilled water and 10 replicates (melon plants). The treatments were applied in a single dose, via soil irrigation. In the first stage of the evaluation, 24 hours after application, the number of dead larvae per plant was counted. In the second step, pupal mortality was recorded. The total mortality was also calculated considering the number of larvae and the number of emerged adults. We verified that, increasing the concentration of aqueous neem seed extract, an increase in the larval and pupal mortality of the leafminer in melon crop was noticed. The concentration 10 g/100 mL presented the best results, resulting in 36.4% of larval mortality, 96.5% of pupal mortality and 96.8% of total mortality.

scholarly journals Effect of Gadung Tuber Extract (Dioscorea hispida) on Mortality of Caterpillars (Spodoptera exigua) in Shallots (Allium cepa) in East Lombok

2021 ◽  
Vol 20 (3) ◽  
pp. 556
Author(s):  
Muhammad Mustarsidin ◽  
Syachruddin AR ◽  
Ahmad Raksun
Keyword(s):  
Allium Cepa ◽  
Analysis Of Variance ◽  
Experimental Research ◽  
Spodoptera Exigua ◽  
Test Results ◽  
Significance Level ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Tuber Extract ◽  
Range Test

Plants that can be used as pesticides are Gadung tubers. Gadung tubers contain cyanide acid to kill armyworm pests because they contain dioscorin toxins which can cause nervous disorders. The purpose of this study was to determine the effect of Gadung tuber extract (Dioscorea hispida) on Caterpillar mortality (Spodoptera exigua) in Shallot plants. This type of research is experimental research. This study used a completely randomized design (CRD). The sample used was 5 caterpillars (Spodoptera exigua) in each polybag with 5 repetitions for each concentration of Gadung tuber extract, namely 0%, 0.5%, 1.0%, 1.5%, 2.0% and 2.5%, so the total Caterpillar used was 150 Caterpillars. Gadung tuber extraction was carried out by maceration method with methanol solvent. Data were analyzed using a one-way analysis of variance at the 95% significance level, followed by DMRT (Duncans Multiple Range Test). The results showed that the Gadung tuber extract had a significant effect on the mortality of caterpillars (Spodoptera exigua) because the F count was greater than the F table (45.40>2.62), and the DMRT test results showed that the optimal concentration of Gadung tuber extract was 2.5%. Therefore, it can be concluded that the extract of Gadung tuber (Dioscorea hispida) affects the mortality of Caterpillars (Spodoptera exigua) in Shallots (Allium cepa).

scholarly journals UTILIZATION OF PAPAYA LEAVES (Carica papaya L.) TO CONTROL ONION PEST SPODOPTERA EXIGUA (LEPIDOPTERA: NOCTUIDAE)LEPIDOPTERA (NOCTUIDAE)

2020 ◽  
Vol 7 (1) ◽  
pp. 1-7
Author(s):  
Muhammad Agung Permadi ◽  
Rafiqah Amanda Lubis ◽  
Syawaludin Syawaludin ◽  
Nova Suryani Pasaribu
Keyword(s):  
Experimental Method ◽  
Carica Papaya ◽  
Spodoptera Exigua ◽  
Toxic Compounds ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Lepidoptera Noctuidae

Spodoptera exigua is a migrant pest that attacks onions simultaneously in groups. The utilization of papaya leaves to control pests due to papaya leaves have toxic compounds that can kill pests. This study aims to measure the ability of papaya leaves to control S. exigua larvae. This research was conducted using a completely randomized design (CRD) experimental method with two treatment factors. The first factor was papaya leaf concentration (0 g / l, 30 g / l, 70 g / l, 100 g / l, 120 g / l), and the second factor is a mixture of kerosene. The treatment was repeated three times. The study was conducted at the Agrotechnology Laboratory, Agriculture Faculty Muhammadiyah University, South Tapanuli. The results showed that papaya leaves could kill S. exigua larvae. The highest mortality of S. exigua worms There were statistically significant non-treatments among treatments.

scholarly journals In-Vitro Effectiveness of Ethanol Extract of Permot Leaf (Passiflora foetida Linn.) Towards Mortality of Rhipicephalus sanguineus Larvae

2020 ◽  
Vol 4 (2) ◽  
pp. 61
Author(s):  
Intan Nurcahya ◽  
Ratna Damayanti ◽  
Iwan Sahrial Hamid ◽  
Agus Wijaya
Keyword(s):  
Ethanol Extract ◽  
Rhipicephalus Sanguineus ◽  
Probit Analysis ◽  
Lethal Concentration ◽  
Extract Concentration ◽  
Randomized Design ◽  
Lethal Time ◽  
Completely Randomized Design ◽  
Passiflora Foetida

This study had three fold objective which were finding the effectiveness of ethanol extract of permot leaf (Passiflora foetida Linn.) towards mortality of Rhpicephalus sanguineus (R. sanguineus) larvae in vitro and also identifying lethal concentration and lethal time. Completely randomized design was used with six treatments and four replications. Five R. sanguineus were used in the treatment for all replication. The observation of mortality was done every ten minutes in five hours. Rhpicephalus sanguineus larvae were dead if there was no movement. The collected data was analyzed using ANOVA factorial and followed by Duncan’s test. The obtained data showed that ethanol extract of permot’s leaf ethanol extract was effective toward mortality of R. sanguineus larvae in vitro. The suspension of 10% extract concentration of permot leaf ethanol extract has a similar effectiveness as Noticks®. Probit analysis stated that LC50 can be reached by using the 4% concentration in two hours and 2.4% concentration in five hours. LC95 can be reached by using the 6.5% concentration in two hours and 3.93% concentration in five hours. The quickest LT50 can be reached in 0.91 hours and LT95 ­2.37 hours after treatment with 10% concentration.

scholarly journals Evaluasi Konsentrasi Lethal dan Waktu Lethal Insektisida Botani Terhadap Ulat Bawang (Spodoptera exigua) di Laboratorium

2019 ◽  
Vol 29 (1) ◽  
pp. 69
Author(s):  
Ahsol Hasyim ◽  
Wiwin Setiawati ◽  
Liferdi Lukman ◽  
Luluk Sutji Marhaeni
Keyword(s):  
Plant Extracts ◽  
Leaf Extract ◽  
Spodoptera Exigua ◽  
Instar Larva ◽  
Lethal Concentration ◽  
Beet Armyworm ◽  
Botanical Insecticide ◽  
Lethal Time ◽  
The Mean ◽  
Third Instar Larva

<p><strong>[Evaluation of Lethal Concentration and Lethal Time of Botanical Insecticide Against Beet Armyworm (<em>Spodoptera exigua</em>) in The Laboratory]</strong></p><p>Pemanfaatan insektisida botani merupakan salah satu pilihan untuk mengendalikan serangan hama Spodoptera exigua yang ramah lingkungan. Tujuan penelitian adalah untuk menetapkan konsentrasi sublethal dan waktu prolethal insektisida botani terhadap larva instar ketiga S. exigua di laboratorium. Percobaan dilaksanakan di Laboratorium Entomologi Balai Penelitian Tanaman Sayuran di Lembang ( ± 1.250 m dpl.), mulai bulan Mei sampai Desember 2015. Penelitian menggunakan metode pencelupan serangga. Mortalitas larva S. exigua diamati mulai 1, 3, 6, dan 12 jam setelah perlakuan dan diulang setiap 24 jam sampai 96 jam. Data mortalitas larva diolah menggunakan analisis probit untuk menetapkan nilai LC50 dan LT50. Hasil penelitian menunjukkan bahwa mortalitas larva S. exigua paling tinggi terjadi pada saat 96 jam setelah perlakuan ekstrak bintaro (85,0%), diikuti oleh ekstrak akar tuba (82,5%), dan yang terendah diperoleh dari hasil aplikasi ekstrak huni yang hanya dapat mematikan larva S. exigua sebesar 57%. Dari lima ekstrak tumbuhan tersebut, nilai LC50 terendah diperoleh dari ekstrak daun bintaro (1.002,67 ppm), diikuti oleh ekstrak daun akar tuba (1.256,07 ppm), ekstrak kirinyuh (1.304,37 ppm), ekstrak suren (1.307,37 ppm), dan tertinggi diperoleh dari ekstrak huni (3.316,06 ppm). Waktu kematian 50% (LT50) S. exigua yang terpendek terjadi pada 33,50 jam dengan fiducial limit 23,24 – 48,42 jam untuk ekstrak daun akar tuba, sedangkan waktu kematian 50% (LT50) S. exigua yang terpanjang diperoleh dari ekstrak daun huni, yaitu 136,52 jam dengan fiducial limit 76,47 – 234,51 jam. Dari penelitian ini diketahui bahwa insektisida botani menunjukkan efikasi yang tinggi terhadap larva S. exigua sehingga dapat direkomendasikan sebagai komponen untuk pengendalian hama terpadu (PHT).</p><p><strong>Keywords</strong></p><p>Bawang merah;  Mortalitas; Insektisida botani; LC50; LT50 </p><p><strong>Abstract</strong></p><p>Utilization of botanical pesticides is one option of environmentally friendly methods to control the attack of Spodoptera exigua . The objective of this study was to evaluate of lethal concentration and lethal time of plant extracts as botanical insecticide against third instar larva of beet armyworm, S. exigua under laboratory condition. The experiment was conducted at Indonesian Vegetables Research Institute at Lembang (±1,250 m asl.), from May to December 2015. Insect dipping method was used in this research. Mortality of S. exigua larvae was observed at 1,3,6, and 12 hours after exposures to the plant extracts and repeated every 24 hours up to 96 hours of exposures. The results of the experiments showed that at 96 hours post treatment, the highest mortality (85.0%) of the S. exigua larvae was caused by sea mango extract followed by Derris leaf extract (82.5%) and the lowest mortality of S. exigua larvae (57%) was obtained from spreng extract. The lowest LC50 from five of the extracts of botanical insecticide derived from sea mango leaf extract (1,002.67 ppm) followed by Derris leaf extract (1,256.07 ppm), Eupatorium leaf extract (1,304.37 ppm), Toona leaf extract (1,307.37 ppm), and the highest LC50 derived from spreng leaf extract (3,316.06 ppm). The shortest of the mean lethal time 50 (LT50) values of S. exigua was 33.50 hours obtained from Derris leaf extract with fiducial limits 23.24–48.42 while the longest of the mean (LT50) values of S. exigua was 136.52 hours obtained Spreng leaf extract with fiducial limits 76.47–234.51 hours. The botanicals insecticides were proven to be effective against S. exigua larvae, so it can be recommended to be used as components for integrated pest management (IPM).</p>

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