cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandung,
Jawa barat
INDONESIA
Cropsaver : Journal of Plant Protection
Published by Universitas Padjadjaran
ISSN : -     EISSN : 26215756     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
The objective of the CROPSAVER Journal is to present articles containing interesting and strategic issues. This journal discusses the discussion of articles with discussion rooms in the fields of plant pests and diseases, technology for pest control, taxonomy, insect physiology, biological insects, toxicology of pesticides, settlement pests that help research, research and research.
Arjuna Subject : -
Articles 107 Documents
 5   6   7   8   9 
The effect of Tofu Wastewater on Cabbage Growth and Preference of Plutella xylostella Siska Rasiska; Nasya Nabila; Danar Dono; Toto Sunarto; Ceppy Nasahi
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.36927

Abstract

Tofu wastewater containing a high proportion of organic compound may cause various adverse impacts, such as water pollution which bad smell and degrading the aesthetics of the environment.  The efforts uses of tofu wastewater is a organic liquid fertilizer. The aims of this study was to determine the effect of tofu wastewater on cabbage growth and preference of Plutella xylostella. The experiment was carried out from April to June 2018, at Ciparanje Experimental Field, Faculty of Agriculture, Universitas Padjadjaran. Randomized block design was used with nine treatment concentration of tofu wastewater consist of control 0%, 12.5%, 25%, 37.5%, 50%, 62.5%, 75%, 87.5%, 100%, and three replication. The result showed that tofu wastewater by 100% could increase the growth of cabbage. The highest female P. xylostella preference.
Effectiveness of Neem Seed Extract Formulation (Azadirachta Indica) and Bitung (Barringtonia asiatica) against Mealybug Papaya (Paracoccus marginatus) (Hemiptera: Pseudococcidae) Vinka Salsabilla; Sudarjat Sudarjat; Yani Maharani
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.39803

Abstract

The papaya mealybug (Paracoccus marginatus) Williams & Granara de Wilink (Hemiptera: Pseudococcidae) is a main pest of papaya plants. Attacks by these pests can cause plants failed to produce the fruit and even to death. The usual control technique used by farmers is the use of synthetic pesticides that have a negative impact on human health and the environment. The alternative to control using botanical insecticides is a good solution to control the population of P. marginatus. The purpose of this study is to know the effect of neem seed oil formulation and bitung to know which treatments with concentrations are most effective in reducing the population density of papaya mealybug pests. The experiment took place in Rejasari Village, Langensari Subdistrict, Banjar City, West Java, from March 2021 to July 2021. Experiment using the Randomized Block Design consisted of ten treatments with three replications. The results were obtained that a formulation of bitung 3% could suppress the densities of papaya mealybug ( P. marginatus) populations at 65%. The average weight of the resulting papaya contained a 3% formulation of bitung found at 9.8 kg/tree. botanical pesticides of bitung oil 3% can be used instead of synthetic pesticides to control the population of P.marginatus.
Potency of Yeasts Isolated from Shallot Rhizosphere to Control Basal Rot (Fusarium oxysporum f.sp. cepae) Disease on Shallot Sri Hartati; Risma Yuniah Nur’haqi; Wahyu Daradjat Natawigena; Tarkus Suganda
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.38099

Abstract

One of the major diseases of shallots is basal rot disease caused by Fusarium oxysporum f.sp. cepae (FOC). Biocontrol agents can be used as an environmentally friendly control method. Some yeasts isolated from the rhizosphere may have the potencies to control soilborne plant pathogen such as FOC. This study was objected to obtain yeast isolates from the rhizosphere of shallots that have the potencies to control basal rot. The first step was isolation of yeasts from the rhizosphere of shallots and isolation of FOC. The yeast isolates were then tested for their potencies in suppressing FOC in vitro and decreasing the basal rot disease on the shallot plants. There were ten yeast isolates obtained from the rhizosphere of shallot, in which seven isolates were non pathogenic to shallot plant. These seven isolates were further tested  for their potencies in controlling FOC and basal rot disease. The results showed that those isolates were able to inhibit the colony growth of FOC by 16,11% - 38,33% in the in vitro dual culture test, and 21,11% - 38,89% in the production of volatile compound test. The isolates also suppressed the basal rot disease incidences by 8,30% - 24,98%. Isolates Cm2 and Cm3 caused the highest disease suppression (24,98%).
Identification and Characterization of Soft Rot Bacterial Pathogens on Phalaenopsis Orchid in Bali I Putu Wirya Suputra; Gusti Ngurah Alit Susanta Wirya; Nyoman Bintang Kartika Sari; I Gede Rai Maya Temaja; Ni Luh Putu Citra Innosensia
CROPSAVER Vol 5, No 1 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i1.39284

Abstract

The moth orchid (Phalaenopsis sp.) is one of the most popular orchids due to the various colors with distinctive shapes of the flowers. Soft rot disease caused by Pectobacteriaceae (SRP) family is commonly found infected this plant. The infected orchid showed pale-colored to blackish slimy rot. This research was conducted in three locations namely Denpasar, Badung, and Karangasem, and resulted in 10 candidates for pathogenic bacteria. The pathogenicity test of the pathogen candidates was carried out by injecting bacterial suspension into the orchid leaf tissue with the result of 6 bacterial isolates showing soft rot symptoms. Moreover, two specific primers Dda1F-Dda1R and Pcc3F-Pcc3R for Dickeya spp. and Pectobacterium spp. consecutively were used for the PCR test. The electrophoresis result of the PCR product identified the bacteria isolated from infected plants as Dickeya spp. Dickeya spp. showed white to yellowish-white colony color, with convex and circular colony form on PDA medium.
Inhibition Effects of Culture Filtrates and Volatile Compounds of Antagonistic Microbes Isolated from Vermicompos and Compost Teas on the Growth of Alternaria solani Sor. in Vitro Istifadah, Noor; Septiandini, Adelia; Hartati, Sri; Widiantini, Fitri
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.43278

Abstract

Alternaria solani Sor. is one of destructive pathogens in solanaceous plants including tomato. Bacteria and yeast isolated from water extract of organic matters are potential as biological control agents of plant pathogenic fungi. Mechanisms of antagonism of bacteria and yeast can be through antibiosis. This study was conducted to examine the abilities of culture filtrate and volatile compounds produced by antagonistic bacteria and yeast isolated from compost and vermicompost teas to inhibit the growth of A. solani in vitro. The experiments were arranged in randomized complete design with four replications. The culture filtrate experiment applied well diffusion method, while the volatile compound effect experiment used petri dish sandwich method. The results showed that the culture filtrates of four bacteria and three yeast isolates inhibited the growth of A. solani in vitro by 16.6-87.5%. The highest inhibition level was showed by KSB4 isolate (Bacillus subtilis), a bacterial isolate from cow manure compost tea. In the volatile compound effect experiment, the tested bacteria and yeast isolates inhibited the pathogen growth by 31.3-75.2%, with the highest inhibition was showed by KcB3, a bacterial isolate from vermicompost tea. The isolate that its culture filtrate and volatile compounds both showed high inhibition level (62.7% and 87.5%) on A. solani growth was KSB4 isolate (B. subtilis).
Level Attacks of Slender Rice Bug (Leptocorisa oratorius) in Tanah Miring District, Merauke Regency Papua Sembiring, Jefri; Sarijan, Abdullah; Katmok, Bonefasius; Mendes, Johanna
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.42454

Abstract

The slender rice bug (Leptocorisa oratorius) is an important pest in Merauke Regency because it can cause a decrease in rice production. Rice plants that are attacked by this pest will produce rice with poor quality, because the color becomes black spots and can calcify. This study aims to determine the level of attack and population density of L. oratorius in the Tanah Miring Merauke District, Papua Province. The method used in this research was purposive sampling. Determination of sampling locations by selecting a paddy field with a minimum size of 1250 m2 on one rice field per variety, then determining 9 sampling points. Sampling of the slender rice bug used an insect net with a diameter of 40 cm which was carried out in 1 double swing at each point measuring 1 x 1 m. The results showed that the average intensity of damage caused by stink bugs in Tanah Miring District was 13.78%. The highest average population density was in Waninggap Miraf village with 46.6 individuals, Yasamulya village, Isanombias village with 44.33 individuals, Yabamaru village with 38.66 individuals, Bersehati village with 38.33 and the lowest was Amunkay village with 30 individuals. While the population average in each observation was highest in the second observation or 55 HST of 46.4 individuals followed by the first observation or 45 HST of 37.4 individuals and the last observation or 65 HST of  29.8 individuals. The most preferred type of variety by the stink bug was Impari 32 (19.76%). Monitoring the development of the slender rice bug population is necessary to prevent the possibility of a population explosion so that it can be controlled earlier.
Capability of Three Yeast Species in Suppressing Green Mold (Penicillium digitatum) on Siam Citrus Fruit (Citrus nobilis) Hartati, Sri; Utari, Elinda Dwi; Rasiska, Siska; Istifadah, Noor
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.42173

Abstract

Green mold is one of the main diseases in citrus fruits caused by Penicillium digitatum. One of the managements that can be used to control this disease is by using yeasts as antagonistic agents. The objective of this study was to evaluate the ability of yeast to suppress Green mold caused by P. digitatum in siam citrus (Citrus nobilis Lour.). The study was conducted using a completely randomized design. The treatments were the application of yeast, consisting of Aureobasidium pullulans isolate Dmg 11 DEP, Rhodotorula minuta isolate Dmg 16 BE, Candida tropicalis isolate Lm 13 BE, fungicide benomyl, and control. The results showed that A. pullulans isolate Dmg 11 DEP, C. tropicalis isolate Lm 13 BE, and R. minuta isolate Dmg 16 BE were able to suppress the growth of P. digitatum in vitro on dual culture method, with suppression levels ranged from 14.64%-21.02%. The greatest suppression was caused by R. minuta isolate Dmg 16 BE. The formation of volatile compounds test results were ranged from 14.51%-34%, and the highest suppression was on C. tropicalis isolate Lm 13 BE. Application of the yeasts on siam citrus fruit was able to reduce the pathogen’s growth, and the suppressions were 28.87% to 68.72%. R. minuta isolate Dmg 16 BE caused the highest suppression.
Feed Preference, Adaptation, and Role of The Eurasian Tree Sparrows (Passer montanus L.) in Urban and Rural Environments Pratiwi, Ika; Priyambodo, Swastiko; Hernowo, Jarwadi Budi
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.41425

Abstract

The Eurasian tree sparrow (Passer montanus L.) known as both pest and predators; in the urban area, it is considered a pest because of its droppings, feathers, and nests around the house. Meanwhile, in rural areas, it is considered both pests and predators because their diets are small insects and small grains like a grain in the rice field. This study aimed to determine the daily consumption rate of sparrows on grain; their preferred food; identify the adaptability; and the role of sparrows in urban and rural areas. Feeding ability test using the no-choice baiting method. Food preference test using the choice baiting method. The adaptability and role of sparrow data are obtained through location determination and direct observation in the field. The results show that the consumption rate of individual sparrow is ten percent of body weight. The most preferred food for sparrow is yellow mealworm, followed by millet, cricket, foxtail millet, rice grain, and corn. The Eurasian tree sparrow is not considered a pest on rice fields. The presence of the sparrow in urban areas is less than in rural areas. Both in urban and rural areas, more sparrows were seen or found in the morning than in the afternoon. Sparrows can adapt well in rural and urban areas because the environment provides open area and house building. In urban areas, sparrow is considered urban pests; meanwhile in rural areas they potentially considered a pest on barley and millet, and predators on small insects.
The Effect of Water Extract of Salam Koja Leaf (Murraya koenigii (L.) spreng) Against Root-Knot Nematode (Meloidogyne spp.) in Tomato Plants Sunarto, Toto; Angelia, Brigitta
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.43005

Abstract

Root-knot nematodes (Meloidogyne spp.) is one of the pathogens that attack tomato plants so that it can reduce tomato production. One alternative to control Meloidogyne spp. environmentally friendly is to use botanical nematicides. Salam Koja (Murraya koenigii (L.) Spreng) has potential as a botanical nematicide because its leaves contain secondary metabolites which are antihelmintic. The purpose of this study was to determine the effect of water extract of M. koenigii leaves and to obtain the best concentration in suppressing the attack of Meloidogyne spp. on tomato plants. This research was conducted at the Greenhouse, Department of Plant Pests and Diseases, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor. The study used an experimental method with a randomized block design consisting of 6 treatments and 4 replications. The treatments included control (without water extract of M. koenigii leaves), concentrations of water extract of M. koenigii leaves 6%, 9%, 12%, 15%, and carbofuran 2 g/plant. The results showed that the water extract of M. koenigii leaves had an effect on suppressing root-knot nematodes (Meloidogyne spp.) on tomato plants. The water extract of M. koenigii leaves at the highest concentration of 15% is effective in suppression of the number of galls in the roots (38.57%) and suppression of the number of juvenile 2 (J2) Meloidogyne spp. in 100 ml of soil (81.03%). Murraya koenogii leaf water extract can be used to control Meloidogyne spp. in tomato plants.
Pathogenicity of Entomopathogenic Fungus Beauveria bassiana Against Leptocorisa acuta Sari, Dian Ekawati; Kumalasari, Ade Sugiarti
CROPSAVER Vol 5, No 2 (2022)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v5i2.39391

Abstract

One of the main pests on rice plants difficult to control is Leptocorisa acuta. This pests has a distinctive odor and attacks rice plants in the generative phase. L. acuta attacks by sucking the rice grains at the milk stage so that the rice grains become empty and the quality reduced. High attack intensity will cause a decrease in rice production. The most widely used method in controlling these pests is the use of synthetic insecticides. The use of synthetic insecticides among farmers tends to be excessive so that cause damage the environment and other organisms. One of the controls that can replace synthetic insecticide and is environmentally friendly is the use of the entomopathogenic fungus Beauveria bassiana. The purpose of this study was to determine the pathogenicity of the fungus B. bassiana against L. acuta. The results showed that B. bassiana was able to cause mortality on L. acuta and its eggs ovicidal effects. Treatment of B. bassiana 60 g/L was able to cause mortality of L. acuta by 62.5% and unhatched eggs by 83.75 %.

Page 7 of 11 | Total Record : 107

 5   6   7   8   9 

Filter by Year

2018 2025


Reset
Filter By Issues
All Issue Vol 8, No 1 (2025) Vol 7, No 2 (2024) Vol 7, No 1 (2024) Vol 6, No 2 (2023) Vol 6, No 1 (2023) Vol 5, No 2 (2022) Vol 5, No 1 (2022) Vol 4, No 2 (2021) Vol 4, No 1 (2021) Vol 3, No 2 (2020) Vol 3, No 1 (2020) Vol 2, No 2 (2019) Vol 2, No 1 (2019) Vol 1, No 2 (2018) Vol 1, No 1 (2018) Vol 1, No 1 (2018) Demo More Issue