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JPT : JURNAL PROTEKSI TANAMAN (JOURNAL OF PLANT PROTECTION)
Published by Universitas Andalas
ISSN : 25800604     EISSN : 26213141     DOI : -
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol. 4 No. 2 (2020): December 2020" : 6 Documents clear
Bahasa Indonesia: english Wisuda, Nova Laili; Wongloom, Prisana
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.64-72.2020

Abstract

The Good Agriculture Practices (GAP) has been practiced in many countries, including Thailand. This study aimed to examine the GAP system's effect on pest arthropods' diversity and their natural enemies in the early generative period of rice cultivation in Phattalung Province, Thailand. The research was conducted in the rice fields of Pradoo Reang Village, Phattalung Province, Southern Thailand. Sampling was carried out using the selected method with a diagonal separation direction and repeated three times. Diversity, evenness, and dominance of pests and natural enemies were determined using the Shannon Wiener index, Evenness index, and Simpson index. The results showed that the pest population found in lowland rice fields planted with the GAP cultivation system was lower than conventional, but with a higher natural enemy population. Pest arthropods in the GAP cultivation system had a higher diversity index compared to conventional, with moderate pest evenness and similarity indexes. Arthropods that act as natural enemies in the GAP cultivation system had a moderate diversity index, with a higher evenness index than conventional, and a moderate similarity index. The two highest of herbivores were Nephotettix virescens and Leptocorisa oratorius, and the two highest of natural enemies were Verania discolor and Agriocnemis sp.Keywords: Agroecosystem, Arthropods, organic, sustainable agriculture
Bahasa Indonesia: english Hanafi, Naufal; Rustam, Rusli
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.99-107.2020

Abstract

Cabbage crop caterpillar (Crocidolomia pavonana Fabricius) is the primary pest on cabbage. This study aimed to know the toxicity of noni seed extract (Morinda citrifolia Linnaeus) against C. pavonana. This study used a completely randomized design (CRD) with five treatments and four replications. The treatments given were the application of noni seed extract in different concentrations; 0, 25 g.l-1, 50 g.l-1, 75 g.l-1and 100 g.l-1. The parameters observed were initial death time, total mortality, daily mortality, lethal time 50, and lethal concentration. The results showed that noni seed extract was able to kill C. pavonana larvae. The higher the extract concentration, the more insects died, and the faster the time of death occurred. The concentration of LC50 was 6.7%, while LC95 was 23.5%. Keywords: Crocidolomia pavonana, noni crop, botanical insecticide
Bahasa Indonesia: english Putri, Wahyuni Eka; Winarto, Winarto; Rahma, Haliatur
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.52-63.2020

Abstract

Anthracnose or leaf fall disease caused by Gloeosporium gloeosporioides is a pathogen that attacks cocoa plants during the nursery phase and production. This study aimed to obtain the best rhizobacteria, which can induce cocoa seeds resistance to anthracnose and increase seedling growth. The study was conducted in a greenhouse, Faculty of Agriculture, Universitas Andalas, in 2019, using a randomized block design with 32 treatments and three replications. The treatments were the different isolates, sourced from Guguak (GK1, GK2, GK3), Akabiluru (AK1, AK2), Lubuk Minturun (LM1, LM2), Tanjung Alai (TA1, TA2, Ta3, TA4, TA5, TA6, TA7, TA8 , TA9, TA10, TA11, TA12, TA13, TA14, TA15, TA16, TA17, TA18), Singkarak (SK1, SK2, SK3, SK4, SK6), and two controls. The results showed that AK2 isolates from Akabiluru could suppress the development of anthracnose and support the growth of cocoa seedlings. The application of AK2 isolates was able to extend the incubation period of G. gloeosporioides, reduce the incidence of disease and the rate of disease infection, and help increase the number of areas and leaf numbers.Keywords: Anthracnose, cocoa seedling, Gloeosporium gloeosporioides, plant induction, Rhizobacteria
Bahasa Indonesia: english Prada, Diego Meihestu; Martinius, Martinius
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.73-81.2020

Abstract

Brown planthopper or BPH (Nilaparvata lugens Stal 1854, Hemiptera: Delphacidae) is one of the main pests in rice plant that destructive by sucking on saps. Difference in rice varieties is predicted to affect the biology and demographic statistics of BPH. The study aimed to determine the biology and demographic statistics of BPH on Cisokan and Kahayan varieties. BPH biology was observed from 10 pairs of BPH per each variety, while demographic statistic was observed from cohort of egg produced by 10 pairs of BPH. The parameters were number of individuals per stadia, life time and life span. Data were processed to obtain biology, survival curve and demographic statistic. The results showed that differences in varieties affected the life time and the number of individuals produced by BPH. The life time of the eggs, 1st – 4th instar of nymphs on Cisokan were shorter than Kahayan, but the 5th instar of nymphs and adult on Cisokan were longer than Kahayan. The number of eggs, nymphs and adults on Cisokan were higher than Kahayan. Both the survival curves on Cisokan and Kahayan were included as type 1. Keywords: Biology, brown planthopper, Cisokan variety, Kahayan variety
Bahasa Indonesia: english Syahdia, Elfitri; Syahrawati, My
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.82-90.2020

Abstract

Misuse and overuse of insecticides by farmers in controlling the brown planthopper or BPH (Nilaparvata lugens), such as over-spraying, over-doses, and mixing more than two insecticides in one application, caused many environmental problems, including resistance. This study aimed to measure the resistance rate of BPH from Payakumbuh Sub-district, West Sumatera Province against BPMC (buthylphenylmethyl carbamate) insecticide. This study used a complete randomized design that consisted of 5 treatments and 5 replications. The treatment was carried out at different concentrations: 0.5 recommended concentration (0.5 ml/l), 1 recommended concentration (1 ml/l), 1.5 recommended concentration (1.5 ml/l), 2 recommended concentration (2 ml/l) and control (without insecticide). The results showed that the higher dose of insecticide, the higher mortality of BPH nymphs. The number of nymphs that succeed to becoming adult decreased when the dosage of insecticide used was increasing. Based on the resistance ratio, the BPH from Payakumbuh is still susceptible to BPMC insecticide. The LC 50 and LC 95 were 0.97 and 2.09 ml on the first day after the application. Keywords: Brown planthopper, resistance, BPMC, mortality, lethal concentration
Bahasa Indonesia: english Ricar, Wahyu; Yunisman, Yunisman; Darnetty, Darnetty
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 4 No. 2 (2020): December 2020
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.4.2.91-98.2020

Abstract

Controlling Crocidolomia pavonana using an insecticide derived from dishwashing detergents is economical and environmentally friendly. This research was conducted at the Laboratory of Insect Bioecology, Faculty of Agriculture, Andalas University, from November 2019 to March 2020. This study aimed to determine the effect of dishwashing detergent on C. pavonana crop caterpillars. The design used was a completely randomized design (CRD) consisting of 6 treatments and four replications. The treatment given was the application of dishwashing detergent with different concentrations, namely: 0, 0.25%, 0.5%, 1%, 2%, and 4%. The results showed that dishwashing detergent could be used as an alternative insecticide in controlling C. pavonana larvae because it can cause death and give antifeedant effect, but it did not reach the stage of inhibiting larval development. The difference in concentration did not affect the difference in larval mortality. Dishwashing detergent provided a relatively weak antifeedant effect. The higher the concentration, the higher the antifeedant effect. The inhibition of larval development occurred fluctuatively without any particular tendency. Keywords: Crop caterpillar, detergent, soap insecticide, sustainable

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