scholarly journals Biological Control of Cocoa Pod Borer (Conopomorpha cramerella Snell) Using Egg Parasitoids of Trichogrammatoidea bactrae fumata in East Java

2018 ◽  
Vol 34 (1) ◽  
pp. 50
Author(s):  
Dwi Suci Rahayu ◽  
Endang Sulistyowati
Keyword(s):  
Biological Control ◽  
Research Design ◽  
Yield Loss ◽  
Block Design ◽  
Egg Parasitoids ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Trichogrammatoidea Bactrae

A study on the potential of  Trichogrammatoidea bactrae fumata  (Tbf) parasitization in the field was conducted at an insecticide-free cocoa cultivation namely Treblasala Plantation, Banyuwangi, East Java. The research design used was a factorial randomized block design with three replications. The tested treat-ments consisted of parasitoid release intervals (once in 2 and 4 weeks) and the release population of 0 (control); 25,000 and 50,000  Tbfper hectare per release. Observations were made on number of detected eggs and parasitized eggs, and level of cocoa damage caused by cocoa pod borer (CPB) attacks. The results of  this  research showed that parasitization level of  T.  bactrae fumata  on CPB eggs after3 months of the release ranged from 29.81–42.79%. The parasitoid release of CPB eggs (T. bactrae fumata) in the field for a year showed that the parasitiza-tion  level of CPB eggs in the field ranged from 17.78–29.72%. Nevertheless, during that year, there was no significant effect of parasitoid release on the suppression of yield loss due to CPB attacks in the field.

Innovation of Natural Preservation of Mackerel (Rastrelliger kanagurta) Using Coconut Coconut Ashes with Drying Time Variations on Hedonics

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Rika Agustina ◽  
Rita Sunartaty ◽  
Teuku Makmur
Keyword(s):  
Research Design ◽  
Block Design ◽  
Drying Time ◽  
Basic Ingredient ◽  
Randomized Block Design ◽  
Salt Substitute ◽  
Long Time ◽  
Time Variations ◽  
Rastrelliger Kanagurta

Coconut frond ash is one of the wastes from coconut trees which has not been maximally utilized. Coconut frond ash contains MgCl2 and KCl so that it can be used as a salt substitute in the process of preserving fish. In this study coconut frond ash was used as a basic ingredient for making dried mackerel with a long time of drying to storage. The purpose of this study was to determine the effect of drying time on mackerel storage. The research design used was a Randomized Block Design (RCBD) with 2 factors studied. The first factor is the drying time consists of 3 levels, namely P1 = 3 days, P2 = 4 days, P3 = 5 days. The second factor is storage which consists of 3 levels, namely S1 = 30 days, S2 = 60 days, S3 = 90 days. Each treatment was repeated 2 times to obtain 18 experimental units to observed hedonic tests. From the results of the study it can be stated that the treatment has a very significant effect (P≥0.01) on the hedonic test which includes (color, aroma, taste and texture).

scholarly journals Quantification of Avoidable Yield Losses in Oilseed Brassica Caused by Insect Pests

2011 ◽  
Vol 51 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Jagdev Kular ◽  
Sarwan Kumar
Keyword(s):  
Seed Yield ◽  
Yield Loss ◽  
Insect Pests ◽  
Block Design ◽  
Maximum Yield ◽  
The Other ◽  
Yield Losses ◽  
Eruca Sativa ◽  
Mustard Aphid ◽  
Randomized Block Design

Quantification of Avoidable Yield Losses in OilseedBrassicaCaused by Insect PestsA six year field study was conducted from 2001-2002 to 2006-2007 at Punjab Agricultural University, Ludhiana, India to study the losses in seed yield of differentBrassicaspecies (B. juncea, B. napus, B. carinata, B. rapaandEruca sativa) by the infestation of insect pests. The experiment was conducted in two different sets viz. protected/sprayed and unprotected, in a randomized block design, with three replications. Data on the infestation of insect pests, and seed yield were recorded at weekly intervals and at harvest, respectively. The loss in seed yield, due to mustard aphid and cabbage caterpillar, varied from 6.5 to 26.4 per cent.E. sativasuffered the least loss in seed yield and harboured the minimum population of mustard aphid (2.1 aphids/plant) and cabbage caterpillar (2.4 larvae/plant). On the other hand,B. carinatawas highly susceptible to the cabbage caterpillar (26.2 larvae/plant) and suffered the maximum yield loss (26.4%).

PERANAN TRICHOKOMPOS DAN PUPUK KCL DALAM MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN BAWANG MERAH DI TANAH BERPASIR (The Role of Trichokompos and KCL Fertilizer to Control Fusarium Will Disease on Onion in Sandy Soil)

AgriPeat ◽  
2019 ◽  
Vol 20 (01) ◽  
pp. 19-26
Author(s):  
Admin Journal
Keyword(s):  
Research Design ◽  
Fusarium Wilt ◽  
Sandy Soil ◽  
Incubation Time ◽  
Block Design ◽  
Wilt Disease ◽  
Single Factor ◽  
Fusarium Wilt Disease ◽  
Randomized Block Design

ABSTRACTThe role of Trichocompost and KCl fertilizer to control Fusarium wilt disease on onion in sandy soil. Fusarium wilt on onion is an interesting disease it is can loss the onion yield. The purpose of research to study trichocompost and KCl fertilizer role to control Fusarium wilt disease on ann onion. The research design used a Factorial Randomized Block Design with 2 factors. The first factor is 4 levels trichocompost, it is: without trichocompost (T0), trichocompost 10 t.ha-1 dosage (T1), trichocompost 20 t.ha-1 dosage (T2), trichocompost 30 t.ha-1 dosage (T3). The second factor is 3 levels KCl fertilizer, it is: without KCl (K0), KCl 100 kg.ha-1 dosage (K1), KCl 200 kg.ha-1 dosage (K2). Result of this research showed the application of trichocompost 10 t.ha-1 dosage and KCl 100 kg.ha-1 dosage can inhibit Fusarium wilt incubation time, can inhibit the patogen development with effective value 89,23%, the single factor it is aplication trichocompost 10 t.ha-1 dosage and trichocompost 30 t.ha-1 dosage not significant to dried onion bulb weight per clump of onion plant.Key words: Trichocompost, KCl fertilizer, Fusarium wilt disease, onion, sandy soil.ABSTRAKPenyakit layu Fusarium merupakan salah satu penyakit penting dapat menurunkan produksi bawang merah hingga 50%. Tujuan penelitian untuk mengetahui peranan trichokompos dan pupuk KCl dalam mengendalikan penyakit layu fusarium pada tanaman bawang merah. Penelitian menggunakan Rancangan Acak Kelompok faktorial dua faktor perlakuan. Faktor pertama 4 taraf dosis trichokompos yaitu: tanpa trichokompos (T0), trichokompos dosis 10 t.ha-1 (T1), trichokompos dosis 20 t.ha-1 (T2), trichokompos dosis 30 t.ha-1 (T3). Faktor kedua 3 taraf dosis pupuk KCl yaitu: tanpa pupuk KCl (K0), pupuk KCl dosis 100 KCl kg.ha-1 (K1), pupuk KCl dosis 200 KCl kg.ha-1 (K2). Hasil penelitian menunjukkan pemberian trichokompos 10 t.ha-1 dan pupuk KCl 100 kg.ha-1 dapat memperpanjang masa inkubasi penyakit, menekan serangan penyakit layu Fusarium dengan nilai efektivitas sangat baik (89,23%), perlakuan tunggal trichokompos dosis 10 t.ha-1 tidak berbeda nyata dengan dosis 30 t.ha-1 terhadap bobot umbi kering per rumpun tanaman bawang merah.Kata kunci: penyakit layu Fusarium, pupuk KCl, tanah berpasir, tanaman bawang merah, trichokompos.

Application Of Vegetable Insecticide With Swamp Plant On Soybeanbork Pest Inland Of Tidal Swamp

2020 ◽  
Vol 9 (2) ◽  
pp. 15-21
Author(s):  
Ni'matuljannah Akhsan
Keyword(s):  
Plant Extract ◽  
Leaf Extract ◽  
Block Design ◽  
Botanical Insecticide ◽  
Insecticide Treatment ◽  
Randomized Block Design ◽  
Tidal Swamp ◽  
Pod Borer ◽  
Tidal Swamps ◽  
The Village

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

Evaluation of biopesticides against gram pod borer Helicoverpa armigera (HUB.) on pigeonpea

2016 ◽  
Author(s):  
Sagar Anand Pandey ◽  
S. B. Das
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Helicoverpa Armigera ◽  
Block Design ◽  
Pigeon Pea ◽  
Larval Population ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Helicoverpa Armígera ◽  
Major Pest

A field experiment on evaluation of biopesticides against gram pod borer (Helicoverpa armigera Hub.) on pigeon pea was carried out during kharif season of 2012-13. The experiment was laid out in randomized block design with three replications. Gram pod borer is a major pest of pigeon pea in India. For the management of this pest seven biopesticides were tested along with control. Among the biopesticides, Beauveria bassiana @ 1 liter / ha (1x1012 spores/ml) was found to be most effective biopesticide as it recorded lowest larval population (6.68 larvae / 5plants). The highest larval population was recorded in control (12.61 larvae /5 plants). The least effective treatment was Paecilomyces fumosoreseus (9.31 larvae /5 plants). Similar trend was observed in the grain yield as 1667.55 kg/ha, 709.41kg/ha and 1025.21kg/ha , respectively.

scholarly journals INTEGRATED BIOLOGICAL TECHNOLOGY TO CONTROL MUNGBEAN PESTS AND DISEASES

2021 ◽  
Vol 22 (1) ◽  
pp. 8
Author(s):  
Marida Santi Yudha Ika Bayu ◽  
Yusmani Prayogo ◽  
Gatut Wahyu Anggoro Susanto
Keyword(s):  
Spodoptera Litura ◽  
Yield Loss ◽  
Block Design ◽  
Field Research ◽  
Biological Agents ◽  
The Other ◽  
Pests And Diseases ◽  
Biological Technology ◽  
Randomized Block Design ◽  
Chemical Pesticides

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.

scholarly journals Pengaruh Pemberian Zat Pengatur Tumbuh Atonik Dan Media Tanam Terhadap Pembibitan Tanaman Aren Genjah (Arenga pinnata, Merr)

2017 ◽  
Vol 6 (1) ◽  
pp. 15
Author(s):  
Yanti Ratna Sari ◽  
Tutik Nugrahini ◽  
Mahdalena Mahdalena
Keyword(s):  
Plant Breeding ◽  
Plant Height ◽  
Research Design ◽  
Growth Regulator ◽  
Block Design ◽  
Growth Substance ◽  
Fingerprint Analysis ◽  
Soil Charcoal ◽  
Randomized Block Design ◽  
Top Soil

The Influence of Atonic Growth Substance and Planting Media Against Aruh Genjah Plant Breeding (Arenga pinnata, Merr). This study aims to determine the effect of proper growth regulator concentration and the best planting medium for the growth of palm seedlings, as well as the effect of interaction between ZPT Atonik and planting media. This research was conducted in Sangatta Lama area of Sangatta Utara Sub-district, East Kutai Regency, with time for 5 (five) months from February to June 2016. The research design used Factorial Randomized Block Design (RAK) 4 x 4 with 3 repetition . The first factor was the administration of Atonic ZPT consisting of 4 levels: z0: without treatment, z1: Atonic ZPT 0.5 ml / 1 liter water, z2: ZPT Atonik 1 ml / 1 liter water, z3: ZPT Atonic 1.5 ml / 1 liter of water. The second factor is the comparison of planting medium consisting of 4 levels: m0: top soil, m1: top soil + sand + manure (1: 1: 1), m2: top soil + husk husk + manure (1: 1: 1 ), m3: top soil + charcoal husk + sand + manure (1: 1: 1: 1). Fingerprint analysis showed that the best effect of ZPT Atonik (Z) on the parameters of plant height was on the first month that is in the treatment of z2 (Atonic ZPT 1 ml / 1 liter water). The best comparison of planting medium (M) to plant height parameters was at month 2 and month 3 was achieved by treatment of m2 (top soil + husk husk + manure = 1: 1: 1) and m3 treatment (Top soil + + Sand + manure = 1: 1: 1: 1). Furthermore, the best treatment of leaflet parameter of month 1 was achieved by treatment of m1 (top soil + sand + manure = 1: 1: 1). The interaction of ZPT Atonik (zxm) comparison and the best planting medium to the leaf number parameter is the 1st month achieved by the z3p1 treatment (Atonic ZPT 1.5 ml / 1 liter water and top soil + sand + manure = 1: 1: 1) . Keywords: Growing Regulators, Planting Media and Aren GenjahThe Influence of Atonic Growth Substance and Planting Media Against Aruh Genjah Plant Breeding (Arenga pinnata, Merr). This study aims to determine the effect of proper growth regulator concentration and the best planting medium for the growth of palm seedlings, as well as the effect of interaction between ZPT Atonik and planting media. This research was conducted in Sangatta Lama area of Sangatta Utara Sub-district, East Kutai Regency, with time for 5 (five) months from February to June 2016. The research design used Factorial Randomized Block Design (RAK) 4 x 4 with 3 repetition . The first factor was the administration of Atonic ZPT consisting of 4 levels: z0: without treatment, z1: Atonic ZPT 0.5 ml / 1 liter water, z2: ZPT Atonik 1 ml / 1 liter water, z3: ZPT Atonic 1.5 ml / 1 liter of water. The second factor is the comparison of planting medium consisting of 4 levels: m0: top soil, m1: top soil + sand + manure (1: 1: 1), m2: top soil + husk husk + manure (1: 1: 1 ), m3: top soil + charcoal husk + sand + manure (1: 1: 1: 1). Fingerprint analysis showed that the best effect of ZPT Atonik (Z) on the parameters of plant height was on the first month that is in the treatment of z2 (Atonic ZPT 1 ml / 1 liter water). The best comparison of planting medium (M) to plant height parameters was at month 2 and month 3 was achieved by treatment of m2 (top soil + husk husk + manure = 1: 1: 1) and m3 treatment (Top soil + + Sand + manure = 1: 1: 1: 1). Furthermore, the best treatment of leaflet parameter of month 1 was achieved by treatment of m1 (top soil + sand + manure = 1: 1: 1). The interaction of ZPT Atonik (zxm) comparison and the best planting medium to the leaf number parameter is the 1st month achieved by the z3p1 treatment (Atonic ZPT 1.5 ml / 1 liter water and top soil + sand + manure = 1: 1: 1) . Keywords: Growing Regulators, Planting Media and Aren Genjah

scholarly journals Evaluation of yield and pest and disease resistance of cocoa clones in Kolaka District, Southeast Sulawesi, Indonesia

2020 ◽  
Vol 21 (12) ◽  
Author(s):  
Rubiyo Rubiyo ◽  
Yovita anggita Dewi ◽  
CHANDRA INDRAWANTO ◽  
IMRAN IMRAN ◽  
AGUS SALIM ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Block Design ◽  
Phytophthora Palmivora ◽  
Average Weight ◽  
Dry Bean ◽  
Pests And Diseases ◽  
Planting Material ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Cocoa Production

Abstract. Rubiyo, Dewi YA, Imran, Salim A, Baharudin, Indrawanto C, Ratule MT. 2020. Evaluation of yield and pest and disease resistance of cocoa clones in Kolaka District, Southeast Sulawesi, Indonesia. Biodiversitas 21: 5698-5607. Cocoa is one of the main plantation commodities in Indonesia. It is an important source of foreign exchange and employment. Currently, Indonesian cocoa production and productivity, including in Southeast Sulawesi, are declining due to pests and diseases. In addition, there is a lack of high-quality and high-yielding clones. This study aimed to evaluate the quality of cocoa clones and resistance to cocoa pod borer (CPB) and cocoa pod rot (CPR) disease caused by the fungus Phytophthora palmivora. The study tested 12 cocoa clones, which included four high-yielding clones. The research location was in Lambandia Subdistrict, Kolaka District, Southeast Sulawesi Province, Indonesia. Clonal planting material was propagated by grafting in 2010. The study used a randomized block design and the treatments consisted of 20 plants of each cocoa clone with three replications. The clones were evaluated from 2018 to 2019. The observed variables included resistance to CPB and CPR. The results of the study based on the quality component showed that the clones MT, M04, and M01 had the highest average weight per one dry bean of 1.55 g, 1.64 g, and 1.24 g, respectively. Beans produced by clones MT, M01, and M04 had an average fat content of 53.36%, 52.72%, and 50.76%, respectively. Observations of the average number of pods with CPR showed that the lowest rate of attack (about 6%) was in BAL 209 and PT. Ladongi clones, with attack intensities of 20% and 18%, respectively; therefore, these clones were classified as resistant to CPR. Evaluation of the level of resistance to attack by CPB pests found two resistant clones, PT. Ladongi and Sulawesi 2, with light levels of attack on beans.

scholarly journals Bioefficacy and Economics of Certain Novel Generation Insecticides against Spotted Pod Borer, Maruca vitrata (Geyer) in Greengram (Vigna radiata L.)

2021 ◽  
Author(s):  
Elluru Sireesha ◽  
Gaje Singh ◽  
Rajendra Singh ◽  
Bhupendra Singh
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Cost Benefit ◽  
Maruca Vitrata ◽  
Emamectin Benzoate ◽  
Randomized Block Design ◽  
Pod Borer ◽  
Cost Benefit Ratio ◽  
And Control ◽  
Crop Research

Background: Spotted pod borer, Maruca vitrata, cause greater damage by attacking flowers, pods in greengram plants. This study investigates the efficacy and economics of certain novel insecticides when sprayed against spotted pod borer in green gram. Methods: The experiment was conducted at Crop Research Center, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut, during kharif 2019 in randomized block design with eight treatments (Emamectin benzoate, Spinosad, Chlorantroniliprole, Indoxacarb, Novaluron, Profenophos, Triazophos and control) and three replications on variety SML668. Observations were taken at three, seven and eleven days after the first and second spray and the data thus recorded were analyzed. Result: The insecticide Chlorantraniliprole 20SC @ 0.025 ml/ lit has shown the highest efficacy with low per cent pod damage (7.33) and maximum grain yield (8.61q/ ha) against M. vitrata from the first day of application followed by Spinosad 45SC @ 0.25 ml/ lit with pod damage of 10.67 per cent and grain yield of 5.08 q/ ha. The highest cost-benefit ratio was obtained in Emamectin benzoate treatment (1:8.54), followed by chlorantraniliprole (1: 6.76).

Bioefficacy of Chlorantraniliprole 18.5 SC Against Pod Borer, Helicoverpa armigera (Hubner) and Pod Fly, Melanagromyza obtusa (Malloch) in Pigeonpea, Cajanus cajan (Linn.) Millsp.

2021 ◽  
Author(s):  
S.K. Khinchi ◽  
K.C. Kumawat
Keyword(s):  
Helicoverpa Armigera ◽  
Cajanus Cajan ◽  
Block Design ◽  
High Toxicity ◽  
Randomized Block Design ◽  
Pod Borer ◽  
The World ◽  
Market Sample ◽  
Helicoverpa Armígera ◽  
Helicoverpa Armigera Hubner

Background: Pod borer, Helicoverpa armigera (Hubner) and pod fly, Melanagromyza obtusa (Malloch) are important pod boring insects infesting the pigeonpea, Cajanus cajan (Linn.) Millsp. throughout the world. A number of synthetic insecticides are known to be effective against these borers but most of them have been phased out as a result of high toxicity to the pollinators and other biotic agencies, therefore, a new molecule, chlorantraniliprole has been tested for bioefficacy against these insect pests.Methods: The experiment was conducted during Kharif, 2017 in a Randomized Block Design (RBD) with 7 treatments and 3 replications. Observations were made to record pod borer, H. armigera and pod fly, M. obtusa maggot present before treatment imposition and 3, 7 and 14 days after each spray from five randomly selected and tagged plants/ plot. From the data recorded per cent reduction in population over control was calculated. The per cent pod damage was calculated by counting damaged pods out of healthy pods. The numbers of coccinellids and spiders were recorded on 5 randomly selected plants before treatment and 7 and 14 days after spray (DAS) in each treatment.Result: The chlorantraniliprole 18.5 SC was found most effective @ 200 ml/ha which was found at par with chlorantraniliprole 18.5 SC @ 150 ml/ha and chlorantraniliprole 18.5 SC (Market sample) @ 150 ml/ha for suppression pod borer, H. armigera and pod fly, M. obtusa. The yield was maximum and at par in the chlorantraniliprole 18.5 SC @ 200 ml/ha (18.25 q ha-1), chlorantraniliprole 18.5 SC @ 150 ml/ha (17.82 q ha-1) and chlorantraniliprole 18.5 SC (Market sample) @ 150 ml/ha (17.42 q ha-1). Predatory population of coccinellids and spiders after imposing the treatments declined to some extent at seven days after treatment, however, increased after 14 days. Based on the results, the use of chlorantraniliprole 18.5 SC @ 150 ml/ha was most effective to control pod borer and pod fly in pigeonpea crop.

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