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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 5 Documents
 1 
Search results for , issue "Vol 4, No 1 (2021)" : 5 Documents clear
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.
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 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.
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.
Effect of Betel Leaf (Piper sp.) Water Extracts to Control Penicillium digitatum Causes of Green Mold in Dekopon Citrus (Citrus reticulata) Ceppy Nasahi; Ria Aghaselly Clonelin
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.v4i1.33913

Abstract

Green mold disease (Penicillium digitatum Sacc.) is one of the main problems in citrus fruits. Some studies had made use of biopesticides in treating postharvest diseases. Some studies reported that plant extracts can suppress various pathogens caused to have antifungal characteristics. One of the plants that are widely used as an extract is green betel leaf (Piper betle) and red betel (Piper ornatum).. This study aims to determine the effect of water extracts from green betel leaf  and red betel leaf in suppressing P. digitatum in dekopon citrus (Citrus reticulata Shiranui). The experiment used the experimental method of Completely Randomized Design with 7 treatments and 3 replications. The results showed that the water extracts of green betel leaf and red betel can inhibit the pathogen P. digitatum both in vitro and in vivo. The red betel leaf water extract at concentration of 10% was able to inhibit the colony diameter of P. digitatum in vitro at 43.61% and green betel lef extract at concentration of 10%  was 39.34%. The best inhibition of green water extract and red betel the diameter of green mold disease on dekopon fruit was 15.95% and 39.74%, respectively. The water extracts of green betel leaf and the red betel leaf were able to inhibit green mold disease in vivo successively was 0.52-19.62% and 17.64-52.67%. The treatment of 10% green betel water extract was able to suppress the growth of green mold disease in dekopon fruit was 19.62% and 10% red betel water extract inhibition was 19.62%.

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