scholarly journals APLIKASI INSEKTISIDA NABATI BERBAHAN TANAMAN RAWA UNTUK MENGENDALIKAN HAMA KEDELAI ULAT GRAYAK (Spodoptera litura) DI LAHAN RAWA PASANG SURUT

AgriPeat ◽  
2021 ◽  
Vol 22 (01) ◽  
pp. 33-39
Author(s):  
Syaiful Asikin ◽  
Melhanah Melhanah ◽  
Yuni Lestari

One type of pest that often attacks soybean plant leaves in tidal swamplands is the armyworm pest. The intensity of leaf damage due to armyworm attack in tidal swamps ranges from 30-95%, and can even lead to crop failure. In controlling pests in soybean plants in general, always rely on chemical insecticides. The use of these chemical insecticides has a negative impact on the environment. To overcome this, the control is directed towards environmentally friendly pest control by utilizing swamp plants as a botanical insecticide. The study used a randomized block design (RBD) with 3 treatments of swamp plant extracts (galam, kirinyuh, kepayang) and 3 controls, namely without control, botanical insecticide made from neem, chemical insecticide with the active ingredient kloraniliprol. The aim of this study was to obtain a swamp plant extract that could be used in controlling armyworm pests (Spodoptera litura). The results showed that the three types of swamp plants could be used as botanical insecticides in controlling armyworm pests, and has an effectiveness value above 70%. The highest effectiveness of botanical insecticides was obtained at the age of 75 DAP, namely Galam (78.29%), Kirinyuh (78.86%) and Kepayang (78.85%).

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Yulensri Yulensri Yulensri

One of the obstacles in increasing organic rice production in Indonesia is decreased land productivity and the attack of armyworm pests (Spodoptera litura F.) which is one of the main pests in rice plants.   The attack of Spodoptera litura can cause 20-80% damage, if not controlled, it can cause crop failure.  Meanwhile, one of the most dangerous diseases in rice is blast disease caused by the fungus Pirycularia oryzae. Blast disease can attack the leaves, stems, panicles, and grain, but is common in the leaves and on the neck of the panicles with a level of attack until the crop fails.  Therefore, in the development of organic rice, the use of local microorganisms (MOL) as biological agents is an alternative that needs to be developed.  The research objective was to determine the effectiveness of the liquid formulation of a bacterial consortium from banana stem bud (LMO) as a biological agent of Spodoptera. litura and blast disease caused by Pirycularia oryzae.  The consortium bacteria were Bacillus cereus strain ATCC 14579,  Bacillus subtillis subsp.subtilis strain 168 and Bacillus siamensis strain KCTC13613, Azotobacter sp. and Pseudomonas fluorescens. The research was conducted in certified organic farmer group rice fields, from February to August 2020. The study used a randomized block design with 8 treatments, namely A = coconut water + molases + CMC + Arginine, B = coconut water + molases + CMC + Arginine + VCO, C = Soybean soaking water + molases + CMC + Arginine, D = Soybean soaking water + Molases + CMC + Arginine + VCO, E = Soybean boiled water + Molases + CMC + Arginine, F = Soybean boiled water + Molases + CMC + Arginine + VCO, G = Liquid Nutrient Broth (NB), H. Without treatment.  The results showed that 7 forms of liquid formulations were tested to be effective for controlling Spodoptera litura and leaf blast disease with the criteria of being effective and very effective.


2020 ◽  
Vol 3 (2) ◽  
pp. 42
Author(s):  
Martua Suhunan Sianipar ◽  
Tarkus Suganda ◽  
Azhhar Hadyarrahman

The Brown Planthopper (Nilaparvata lugens Stal.) is one of the pests that often causes rice crop failure in rice. One way to control N. lugens pests is to use of botanical insecticide. The purpose of this experiment is to study the effect of A. cordifolia leaves ethanol in suppressing N. lugens populations. The experiment used a Randomized Block Design (RDB) with 8 treatments and 4 replications. The A. cordifolia leaves ethanol extract concentration tested in this experiment consisted of 0,5%; 0,75%; 1%; 1,5%; and 2%.  The results of the experiment showed that the ethanol extract of binahong leaves with a concentration of 1%, 1.5% and 2% cause mortality of N. lugens by 52.50%, 56.25%, and 61.25% on the 14th day after application. Based on the results of this experiment, the ethanol extract of A.cordifolia leaves was not effective against N. lugen.


AGRICA ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Maria Goreti Firma

This study aims to determine the effect of tobacco plant extracts on mortality of armyworm pests (Spodoptera litura F.) and determine the optimum concentration of tobacco leaf extracts on mortality of armyworm caterpillars on mustard plants in the field. The design used in this study was a Randomized Block Design (RBD) consisting of 5 treatments and 4 replications namely T1: 175 ml/L concentration of tobacco leaf extract, T2: 350 ml/L concentration of tobacco leaf extract T3: Concentration of 525 ml/L tobacco leaf extract, T4: Concentration of 700 ml/L tobacco leaf extract, T5: Concentration of 875 ml/L of tobacco leaf extract. The observation variables in this study were pest mortality (%), damage intensity (%), plant fresh weight, and fresh weight per hectare (ton). The results showed that the concentration of tobacco leaf extracts significantly affected the mortality of Spodoptera litura F. At the concentration of T5 treatment (875 ml) were the lowest damage, pest mortality, fresh weight of the mustard plant, and fresh weight per hectare of was 9.75%, 88%, 109.25 gr, and27.31 tons respectively.


2019 ◽  
Vol 4 (1) ◽  
pp. 28
Author(s):  
Kartina Kartina ◽  
Shulkipli Shulkipli ◽  
Mardhiana Mardhiana ◽  
Saat Egra

<h1>Spodoptera litura F. is one of the important pests in Horticulture commodities which can cause damage 80% and up to 100%. Karamunting (Melastome malabathricum) is a wild plant that grows in Tarakan City. This plant is known to contain secondary metabolites which are thought to have the potential to control pests. This study aims to determine the potential of Karamunting extract as a botanical insecticide material to control armyworms. This study uses a completely randomized design (CRD) method with 1 treatment factor, namely the concentration of Karamunting leaf extract. Potential extracts as botanical insecticides were tested by dye method using 4 concentrations, namely 0 (control); 500; 1000; 2000; 4000; and 8000 ppm. The results showed that Karamunting leaf extract was able to control armyworm pests. Giving extracts of 8000 ppm (P5) in feed caused the highest decrease in eating activity up to 41,2%, larval mortality up to 85%, and the highest mortality rate after 7 days of observation. Decreased feeding activity and larval mortality were thought to be influenced by the presence of phenol compounds, fatty acids, terpenoids, sterols and alkaloids identified in the extract. Thus, Karamunting leaf extract has the potential to be developed as an active ingredient in botanical insecticides to control armyworm.<strong></strong></h1>


2020 ◽  
Vol 9 (2) ◽  
pp. 15-21
Author(s):  
Ni'matuljannah Akhsan

ABSTRACT The aim of this research is to control environmentally friendly soybean pod borer by utilizing plants in swamps as a vegetable insecticide, namely Kepayang (Pangiumedule). The study was conducted on tidal land in the Village of Kiri Dalam, Barambai District, Barito Kuala Regency, South Kalimantan Province. The study was designed in a randomized block design with 5 replications. The treatment is; 1. Kepayang leaf extract, 2. Without control, 3.Neem plant extract, 4. Chloriliprol insecticide. The results showed that the Kepayang leaf extract can be used as a botanical insecticide controlling soybean pod borer because it can suppress soybean pod attack by up to 62% and is no different from the Chloriliprol insecticide treatment by 64%. Keywords: Applications, Swamp Plants, Boring Pods Borers, Tidal Swamps


2021 ◽  
Vol 22 (1) ◽  
pp. 8
Author(s):  
Marida Santi Yudha Ika Bayu ◽  
Yusmani Prayogo ◽  
Gatut Wahyu Anggoro Susanto

The main constraints to increase mungbean production in Indonesia are pests and diseases. The application of integrated biological agents can improve the efficacy of controlling the mungbean pests and diseases. The study aimed to determine the efficacy of integrated biological agents to suppress mungbean pests and diseases. This field research was conducted from May to July 2018 using a randomized block design with seven treatments and four replicates. The treatments were: T1 = Trichol + NSP, T2 = Trichol + SlNPV, T3 = Trichol + NSP + SlNPV, T4 = Trichol + NSP + SlNPV + BeBas, T5 = Trichol + NSP + SlNPV + BeBas + GE, T6 = chemical pesticides, and T7 = control. The results showed that the highest efficacy occurred in T4 and T5 treatments which saved the yield loss from major pests and diseases attack, and did not differ significantly with chemical pesticides (T6). Treatments T4 was able to reduce the development of soil borne diseases by 3% and suppress Spodoptera litura attack by 9.8% as compared to chemical treatment. T4 was also more efficient than T5 because it uses less biological agents. The advantage of biological agents is compatible if they were used together with predators such as Oxyopes sp., Paederus sp. and Coccinella sp; and also Telenomus sp. and Trichogramma sp. parasitoids. On the other hand, the chemical pesticides (T6) killed all existing natural enemies. Therefore, T4 could be recommended for controlling mungbean pests and diseases.


2017 ◽  
Vol 17 (2) ◽  
pp. 162
Author(s):  
Nurbailis . ◽  
Martinius . ◽  
Rizka Naipinta

Persistence of several antagonistic fungus on chilli and its potential to suppress anthracnose disease caused by Colletotrichum gloeosporioides. Anthracnose disease caused by C. gloeosporioides is one of the important diseases on chilli because its directly gives negative impact on chilli production. The aim of this research was to obtain the superior antagonistic fungi that have ability to persist on chili fruit and potential to control anthracnose disease caused by C. gloeosporioides  The experiment consist of two units: 1. Testing of persistence ability of antagonistic fungi on chilli fruit, 2. Testing the potential of antagonistic fungi to suppress anthracnose disease on chilli fruit. Both of the test used Randomized Block Design (RBD) with 10 treatments and 4 replication, each of replication consist of 4 chilies fruit. Those treatments were Trichoderma-PP1, Trichoderma-PP3, Trichoderma-AG2, Trichoderma-PYK3, Paecilomyces-PP6, Paecilomyces-PP7, Paecilomyces-AG4, Paecilomyces-PYK4, Aspergillus PP2 and without antagonistic fungi (control). The result indicated that all antagonistic fungi isolate could persist on chili fruit. The highest persistence were Trichoderma-PP3 and TrichodermaAG2 (95.83%) and the lowest belonged to Paecilomyces-PP7 (50%). Trichoderma-PP3 and Trichoderma-AG2 were the best isolates for suppressing anthracnose disease caused by C. gloeosporioides.


EUGENIA ◽  
2013 ◽  
Vol 19 (2) ◽  
Author(s):  
C. S. Rante ◽  
D. T. Sembel ◽  
E. R.M. Meray ◽  
M. M. Ratulangi ◽  
M. F. Dien ◽  
...  

ABSTRACT   The experiment was conducted in the village of Touure, Tompaso District, Minahasa regency since April to August 2013. Designed studies using randomized block design with 3 treatments, namely fruit extract Bitung (treatment A), tuba root extract (treatment B) and water (control treatment), each treatment was repeated 3 times. Results showed that that the extract of Barringtonia asiatica and Derris elliptica has a botanical insecticide to control the properties of N. tenuis. Applications B. asiatica extract and D. elliptica were not significantly different, but both are significantly different from controls. In addition to N. tenuis found several Plant Pest Organisms (OPT) that attack tomato plants including pest Liriomyza sp., leafhoppers tomatoes., black stem base diseases, leaf spot diseases and viral diseases. Key words : Botanic Insecticide, Tomato pest control ABSTRAK   Penelitian dilaksanakan di Desa Toure, Kecamatan Tompaso, Kabupaten Minahasa sejak bulan April sampai dengan Agustus 2013.  Penelitian dirancang menggunakan Rancangan Acak Kelompok dengan 3 perlakuan yaitu ekstrak buah bitung (perlakuan A), ekstrak akar tuba (perlakuan B) dan air (perlakuan kontrol) yang masing-masing perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa bahwa ekstrak Barringtonia asiatica dan Derris elliptica memiliki sifat insektisida botanis untuk mengendalikan N. tenuis. Aplikasi ekstrak B. asiatica dan D. elliptica tidak berbeda nyata, namun keduanya berbeda nyata dengan kontrol.  Selain N. tenuis ditemukan juga beberapa Organisme Pengganggu Tanaman (OPT) yang menyerang tanaman tomat diantaranya hama Liriomyza sp., wereng tomat., penyakit pangkal batang hitam, penyakit bercak daun dan penyakit virus. Kata kunci : Insektisida botanis, pengendalian hama tanaman tomat


Agronomy ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1122
Author(s):  
Celia Payá ◽  
M. Pilar López-Gresa ◽  
Diego S. Intrigliolo ◽  
Ismael Rodrigo ◽  
José María Bellés ◽  
...  

Agronomy solutions for modifying pre-harvest grape ripening are needed for a more sustainable viticulture. Field experiments were performed in Vitis vinifera L. vines to study the effect of the previously described stomata-closing compound (Z)-3-hexenyl butyrate (HB). Exogenous treatments at different doses were periodically carried out using a randomized block design. Firstly, we observed that HB was able to induce stomatal closure in grapevine plants. Under field conditions, the application of HB around veraison induced a higher color intensity in berries, and vines treated at higher doses reached this stage earlier than the un-treated controls. There was also a clear increase in both grape anthocyanin concentration and total soluble solids without having a negative impact on total yield. We therefore, confirm the role of HB as a universal natural stomatal closure compound and propose a new use for HB in viticulture as a ripening inducer, by accelerating anthocyanin accumulation.


2020 ◽  
Vol 11 (2) ◽  
pp. 258-275
Author(s):  
Fitiwy Ibrahim ◽  
Tsehaye Hadush ◽  
Gebretsadkan Abraha ◽  
Araya Alemu

Citrus fruit production is suffering from various yield-limiting factors particularly the sucking pests viz, citrus leafminer Phyllocnistis citrella, woolly whitefly, Aleurothrixus floccosus and scale insects especially armored scales Aonidiella auriantii. The present paper tries to identify the effective botanical insecticides against these insect pests on citrus orange. An experiment was conducted in the established citrus orange farm in Kolla Temben at two farmer’s fields, Adiha and Agibe during the off-season of 2018 under irrigation growing condition in a randomized complete block design with six treatments and replicated thrice. The findings in both experimental sites showed that the neem seed extract had a significantly (P=0.001) lower leafminer infestation levels compared to the untreated control which is on par to the insecticide treatment of dimethoate. On the other hand, in both areas, whitefly mortality of more than 81% on average was recorded from neem seed extract followed by Tree tobacco (70%) (P=0.001). For scale insects however, in both experimental sites, the highest mean percent mortality was recorded from the insecticide dimethoate 40% EC (86.9%, 87.2 & 86.0%on average) followed by neem seed and tree tobacco extracts,70.1 and 65.4% respectively. The botanicals particularly the neem seed extracts followed by tree tobacco are as effective as the chemical insecticide, dimethoate 40% EC, even superior in some cases, in controlling the target pests. Therefore, these botanicals could be used as an IPM component for against the target pests.


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