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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
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The Effect of Lined Circular Planting Methods of Sweet Corn (Zea mays Saccharata) on Diversity and Density of Weed Species Lutfy Ditya Cahyanti; Use Etica
CROPSAVER Vol 3, No 1 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (209.675 KB) | DOI: 10.24198/cropsaver.v3i1.24879

Abstract

The objective of the research to determine the effect of row circle method on population and diversity of weed in sweet corn. This research was conducted in the Sub District of Siman, District of Siman, Ponorogo The research used a randomized block design (CBD) with 4 kinds of planting spaces included J1 = 8 plant/(60x80) cm2, J2 = 16 plant/(60x80) cm2, J3 = 12 plant/(60x80) cm2, J4 = 1 plant/(60x 80) cm2, J5 = 1 plant/ (60x80) cm2 with mowing. Each experimental unit was repeated 5 times so that there were 25 units. The observation was done on the Summed Dominance Ratio (SDR) of weeds on 21,28, 35 and 42 DAP (day after planting).  Largest SDR was found in Cynodon dactylon (54,23%) followed by broadleaf grass group (Phyllanthus nirurii, 40,5%), and Sphenoclea zeylanica (34,2%). Various planting system influenced weed species diversity. The number of weed species in 1 plant/(60x80) cm2 treatment was six species and higher than 8 plant/(60x80) cm2, 16 plant/(60x80) cm2,  12 plant/(60x80) cm2 and 1 plant/(60x80) cm2 with mowing treatment which has three species.
The Effect of Chitosan in Suppressing the Development of the Sheath Blight Disease (Rhizoctonia solani Khun) on Rice (Oryza sativa L.) Okke Rosmala Dewi; Muhamad Tandi M; Umi kulsum
CROPSAVER Vol 3, No 1 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.538 KB) | DOI: 10.24198/cropsaver.v3i1.25535

Abstract

Rhizoctonia solani is a fungal disease in rice plants that can cause damage to rice plants and reduce yield by 50% -80%. This disease is difficult to control because it can survive in the soil for 2 years and spread easily. Efforts to control R. solani by using synthetic pesticides can couse negative impacts such as resistance, resurgence in plant pests. Therefore, alternative controls that are environmentally friendly and effective on target are needed. One of them is controling by using chitosan (extrct of shrimp shell waste) as a producer of antibiotics and amine (-NH2) functional groups. The purpose of this study is to obtain an effective concentration that can control and inhibit the development of Rhizoctonia solani both in vitro and in the field. The study was conducted in July 2018 - March 2019 at the Central Plant Pest Organisms Jatisari. The experiment used was a Randomized Block Design method with 8 treatments of chitosan concentration and 3 replications with a total of 24 plots. The results showed that powder of chitosan was able to supprese the growth of R solani colony and reduce diseases intensity of R. solani. The best in vitro treatment to suprpress growth of R. solani that was the concentration of 1.5%. This treatment inhibit mycelium growth by 77.37 % and sclerotia by 81.13 % while in the field experiment, it can inhibit the intensity of R. solani attacks by 9.67%.
Pathogenicity of Beauveria bassiana Vuill in compost media for Oryctes rhinoceros L. oil palm pest control Rina Novianti; Hafiz Fauzana; Rusli Rustam
CROPSAVER Vol 4, No 1 (2021)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v4i1.31039

Abstract

The Oryctes rhinoceros pest is an important pest of palm oil plant.  Pest problems occur because  Oil Palm Empty Fruit Bunches (OPEFB) is added for soil fertility to create a breeding site for larvae O. rhinoceros. Generally, OPEFB will receive the plants more quickly when composted, and pest control is carried out in the compost. Biological control is more recommended because it is environmentally friendly, Therefore compost is added with biological control agent O. rhinoceros namely B. bassiana. This study is aimed to obtain the best conidia density of Beauveria bassiana in compost in controlling larvae O. rhinoceros. The research was carried out at the Plant Pest Laboratory and Experimental Garden, Faculty of Agriculture, Riau of University. The study was carried out from February to November 2020. The experiment on the conidia density of B. bassiana fungi in compost media against larvae O. rhinoceros, using a Completely Randomized Design (CRD), with 6 treatments 4 replications obtained 24 experimental units, while the treatments were 0 g.l-1, 15 g.l-1, 30 g.l-1, 45 g.l-1, 60 g.l-1 and 75 g.l-1. The results of the research revealed that  OPEFB compost + sawdust containing the fungus B. bassiana 75 g.l-1 (83,2 x108 kon/ml) had the best ability to control larvae O. rhinoceros with a total larvae mortality of 87% which caused early death of 54 hours after application, LT50 of 213 hours after application, and LC50 of 3,3% or the equivalent of 33 g.l-1 at 14 days after application.
Effect of Anredera cordifolia (Ten) Steenis Leaves Ethanol Extract in suppressing Brown PlantHopper (Nilaparvata lugens Stal.) Populations on Rice Plant Martua Suhunan Sianipar; Tarkus Suganda; Azhhar Hadyarrahman
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.29448

Abstract

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.
The Effect of Color Type and Light Intensity of Light Emitting Diode (LED) Light Traps on the Types and Number of Pest Insect Catches in Rice Plantations Iqbal Erdiansyah; Moch. Syarief; Moch. Irfan Kusairi
CROPSAVER Vol 4, No 1 (2021)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v4i1.28555

Abstract

The purpose of this study was to examine the effect of the type of color and light intensity of the light emitting diode (LED) Light traps on the type and number of insect pests in rice plantations. The research was conducted from November 2017 to March 2018, in Kencong Village, Jember Regency. The data collection method used Scan sampling, for 11 weeks, one week interval, starting at 07.00 p.m. to 04.00.a.m. The number of plots was 4 pieces, each 100 m2. The distance between the plots is 100 meters. Light traps in each plot, red, yellow, blue and white. Each color consists of 4 light intensities, namely 3 watts, 5 watts, 7 watts and 9 watts. Observation parameters: types and number of insect pests catches. The different types and numbers of insect pests caught were using the Kruskal-Wallis test. The normality of the data used the Shapiro-Wilt test. Statistical significance p < 0.05. Correlation between lamp color and light intensity, using the Spearman correlation test. Data were analyzed using SPSS version 23.0. The conclusions of the study were: The types of insect pests at various colors and intensity of LED light traps showed similarities, consisting of 5 orders, 6 families and 6 species. The red LED trap light indicates the highest number of pest catches. The number of insect pest catches of red LED was 475 individuals. A light intensity of 9 Watts indicates the highest number of insect pest catcheswere 568 individuals. The spearman correlation coefficient between the type of LED color and the light intensity (r) = - 0.415.
The Effect of Neem Seed Oil (Azadirachta indica) and Clove Leaf Oil (Syzygium aromaticum) Mixture on Cabbage Head Caterpillars (Crocidolomia pavonana) Utami Dwi Ginasti; Danar Dono; Toto Sunarto
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.29855

Abstract

Crocidolomia pavonana is one of the important pest in Brassicaceae family. The used of botanical pesticides such as neem and clove can be used as alternative control for C. pavonana. This study aimed to examine the effect of neem oil, clove oil, and its mixture to C. pavonana. This experiment was conducted from November 2019 to May 2020 at the Laboratory Pesticides and Environmental Toxicology of the Department of Plant Pests and Diseases of the Faculty of Agriculture, Universitas Padjadjaran. The experimental method used in this research was Randomized Block Design with 21 treatments, i.e control, neem oil, clove oil, and its mixture at concentrations of 0,1%, 0,25%, 0,5%, and 1%, each treatments was replicated 3 times. The result of this experiment showed that single or mixed treatments (Neem : Clove) at consentration of 1% caused 100% larvae mortality. Mixed treatment at ratio 1:1 could inhibits the formation of pupa and imago, and could prolong the development time of larvae in instar II-III and instar II-IV. In addition, mixed treatment at ratio 2:1 was also prolong the development time of larvae in instar II-pupa, reduce food consumption, inhibit the formation of imago, and reduce the number of eggs C. pavonana.
The Effects of Various Doses of Azadirachta indica A. Juss. Seed Cake against Aphis gossypii (Glover) and Growth Characters of Red Chili Plants (Capsicum annuum L.) Ardi Zulfikar Muchlis
CROPSAVER Vol 4, No 1 (2021)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v4i1.33780

Abstract

Neem plant is used as plant-based insecticide because all parts of the plant have insecticides activities. The utilization of neem plants as plant-based insecticides is generally only in the seed parts, but the extraction of neem seed extract has not been used because it is considered as waste. The utilization of neem seed cake as a natural insectiside is one way to recycle neem seed cake which is known to contain active ingredients of neem seed oil. Apart from its use as an insecticide, neem seed cake can also be used as an organic fertilizer. This study aimed to determine the effect of application of various doses of neem seed cake to A. gossypii on chili plants. The experiment used a randomized block design with 7 treatments and 4 replications. The treatments included control, neem seed cake doses of 25 gr, 50 gr, 75 gr, 100 gr, 125 gr, and a comparative treatment of carbofuran active ingredients. A. gossypii imago were introduced in 20 red chili plants per plant. The results showed the application of a dose of 50 gr of neem seed cake per polybag effectively suppressed A. gossypii populations and gave the best effect on some chili plant growth characters such as leaf chlorophyll content, plant height, leaf hardness of chili plant and levels of N element absorbed.
Insect parasitoid and ant of associated on aphids (Aphididae) colonies on plants in West Java Yani Maharani; Nina Maryana; Aunu Rauf; Purnama Hidayat
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.30645

Abstract

Aphid is a sucking insect as a pest and vector of virus diseases plants. The aphids presence on plants are often accompanied by ants that symbiotic on aphid’s colony. Mutualism symbiosis between ants and aphids can hinder natural enemies especially parasitoids to parasitizing aphids. This study aims to explore parasitoid and ant species associated with aphids and determine the level of parasitoid parasitization. The survey was conducted on agricultural crops and weeds in West Java area. Samples were taken by purposive sampling looking at the aphid presence, ant, and mummified colonies. Aphid’s identification was carried out at Insect Biosystematics Laboratory, Department of Plant Protection IPB, whileparasitoid and ant identification was carried out at Entomology Laboratory of Zoology LIPI. The identification results obtained four species of Hymenoptera parasitoid, i.e Adialythus ambiguus, Aphidius matricariae, Praon absinthi (Braconidae) and Psyllaephagus pilossus (Encyrtidae) and eight species of ants of Formicidae family, i.e Dolichoderus sp, Dolichoderus thoracicus, Monomorium destructor, Monomorium floricola, Myrmicaria brunnea, Pheidole javana, Polyrhachis dives, and Technomyrmex albipes. The dominant parasitoid species found was A. matricariae, but the highest level of parasitization was P. pilossus (78%), parasites Rhopalosiphum padi in rice plants. Basic information on the types of ants and parasitoid insects associated with aphids can be used in the development of aphids integrated pest management strategies.
Role of Cocoa Clones and Endophyte Fungi in controlling VSD Disease in the Field Muhammad Taufik; Asniah Asniah; Muhammad Botek; Rahayu M; Arifin Tasrif
CROPSAVER Vol 4, No 1 (2021)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v4i1.33087

Abstract

The fungus Ceratobasidium theobromae is the cause of vascular streak dieback (VSD) in cocoa. VSD disease can cause death in susceptible clones by more than 59%. The use of resistant cocoa clones and endophytic fungi can be an alternative for VSD disease control. The research objective was to evaluate cocoa clones and endophytic fungi to control VSD in the field. The experimental design used was a randomized block design with a factorial pattern. The first factor was cocoa clones, which consisted of clones 45 (K1) and 25 (K2), and the second factor was several types of endophytic fungi. The results showed an interaction between cacao clones and endophytic fungi isolates on the height and number of cocoa leaves. The two cacao clones tested could be naturally infected by C. theobromae without endophytic fungi, with disease incidence of VSD 5, 21% in K1, and 5.75% in K2. The two cocoa clones treated with endophytic fungi, i.e., Paecilomyces sp. EP1, Paecilomyces sp. EP2 and Paecilomyces sp. EP1 + Trichoderma sp.)  did not show symptoms of VSD until 20 weeks after planting.
Insecticidal activity of the extracts of Piper retrofractum fruit and Tephrosia vogelii leaf and their mixtures against Crocidolomia pavonana Djoko Prijono; R. Dewi Ratna Wulan; Ferdi Ferdi; Nur Alfi Saryanah
CROPSAVER Vol 3, No 2 (2020)
Publisher : Departemen Hama dan Penyakit Tumbuhan Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cropsaver.v3i2.31305

Abstract

This laboratory work was carried out to evaluate the insecticidal activity of the extracts of Piper retrofractum (Piperaceae) fruit and Tephrosia vogelii (Fabaceae) leaf and their mixtures against the cabbage head caterpillar, Crocidolomia pavonana. Ground plant materials of the two plant species were extracted separately with n-hexane and methanol. The results of leaf-residue feeding bioassays showed that P. retrofractum (Pr) and T. vogelii (Tv) hexane extracts had strong insecticidal activity against C. pavonana larvae (LC95 < 0.5%) and were more active than their respective methanol extracts. Pr and Tv hexane extract had a moderate and a rather weak contact effect on C. pavonana larvae, respectively. In feeding tests, Pr + Tv (1:1) hexane and methanol extract mixtures indicated synergistic joint effect both at LC50 and LC95 level, whereas in the contact test, the mixture of Pr + Tv (1:1) hexane extract was synergistic at the LC50 level but antagonistic at the LC95 level. In choice tests, antifeedant effects of Pr and Tv hexane extracts at LC25 to LC70 levels on C. pavonana larvae followed a concentration-dependent fashion. Thus, separate or mixed P. retrofractum and T. vogelii extracts are potential alternatives for the control of C. pavonana.

Page 5 of 11 | Total Record : 107

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