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 8 Documents
 1 
Search results for , issue "Vol 5, No 2 (2022)" : 8 Documents clear
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 %.
Testing of Superiority and Resistance of Cayenne Pepper of Blaze 12 Variety to Pepper Yellow Leaf Curl Disease Kustanto, Heri
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.v5i2.42554

Abstract

Cayenne pepper is one of the important vegetables and has high economic value. This plant can be cultivated in various types of soil in the lowlands to the highlands. Chilies are very much liked by Indonesian people because of it is spicy and contains various nutrients and vitamins. The purpose of this study was to study and determine the productivity and resistance to yellow curly leaf disease of Blaze 12 varieties compared to comparison varieties. The demand for chili continues to increase from year to year but chili production is not optimal. Efforts to increase crop production have several obstacles related to seed quality, crop cultivation technique, pest and disease attacks. Pepper yellow leaf curl virus (PYLCV) is a disease that can reduce production and cause crop failure. One of the ways to improve seed quality is through a breeding process to support chili productivity and improve other characters such as resistance to disease.Testing of variety is a final stage in plant breeding before varieties are released and commercialized. The purpose of this study was to study and determine the productivity and resistance to yellow curly leaf disease of Blaze 12 varieties compared to comparison varieties. The results of the analysis variance showed a significant effect on the characters: leaf length, leaf width, fruit length, fruit diameter, skin thickness, weight per fruit, number of fruit per plant and yield per hectare. Resistance to yellow curl leaf disease of the Blaze 12 variety was as same as VP-3 and better than VP-1 and VP-2, which showed resistance with mild symptoms. The character of cayenne pepper yellow curl disease is closely related to leaf area.
The Effectiveness of Azadirachta indica A. Juss. and Barringtonia Asiatica L. Kurz. Seed Extract to Controlling Macrosiphoniella sanborni (Hemiptera : aphididae) on Chrysanthemum Morifolium Var. Jayanti Masturina, Safirah Amalia; Sudarjat, Sudarjat; Nasahi, Ceppy
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.v5i2.39751

Abstract

Macrosiphoniella sanborni is a main concern in the production of ornamental chrysanthemum plants. Farmers commonly use chemical treatment to control aphids, but this can harmful the environment and humans. Therefore, alternative environmentally control is needed, one of which is by using botanical pesticides such as Azadirachta indica and Barringtonia asiatica. This research aimed to test the effectiveness of the neem and bitung seed extract against M. sanborni pests on chrysanthemum plants. This research was conducted at the Chrysanthemum cultivation Mr. Syarif’s screen house in Karyawangi village, Parongpong district, West Java, which began in January 2021 to May 2021. This research used an experimental method using a Randomized Complete Block Design (RCBD) which each experiment consisted of 10 treatments and each treatment was repeated 3 times. The tested treatments are neem and bitung seed extract in different concentration, and controls. The results of this study revealed that the effective treatment of M. sanborni on chrysanthemum is the extract of bitung seed at the concentration of 2%. Bitung seed extract pesticides can be used as an alternative synthetic pesticide to control population of M. sanborni.

Page 1 of 1 | Total Record : 8

 1 

Filter by Year

2022 2022


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