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INDONESIA
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. 3 No. 1 (2019): June 2019" : 6 Documents clear
Aktivitas Insektisida Ekstrak Air Campuran Buah Piper aduncum dan Daun Tephrosia vogelii terhadap Crocidolomia pavonana Fabricius (Lepidoptera: Crambidae): english Afriyanita, Afriyanita; Lina, Eka Candra; Darnetty, Darnetty
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.34-46.2019

Abstract

The botanical insecticide is alternative pest control that is feasible to be developed. The inflorescences extract of Piper aduncum and leaf extract of Tephrosia vogelii are known to have insecticidal activity. The study aimed to determine the effect of a mixture of water extract of P. aduncum inflorescences and T. vogelii leaves on C. pavonana. This test used a completely randomized design (CRD) consisting of 6 treatments (0.0, 2.5, 3.0, 3.5, 4.0 and 5.0%) and 5 replications. Observation parameters were larval mortality, antifeedant effect, larval development time, pupal development time, normal and abnormal pupae, and sex ratio. The mixture of water extract of P. aduncum inflorescences and T. vogelii leaves (2:1) at LC50 (3.19%) was antagonistic and at LC95 (6.07%) was additive. The mixture influenced larval mortality (81.0%), had antifeedant effect (84.5%) and prolonged larval development time 1.71 days on 2nd-3rd instars and 2.4 days on 2nd-4th instars compared to control, but there were no effect on pupal development time, number of abnormal pupae and sex ratio.
Respon Kutu Putih Pepaya dan Tanaman Pepaya terhadap Aplikasi Asam Salisilat: english octriana, Liza; Putra, Nugroho Susetya; Suputa, Suputa
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.10-17.2019

Abstract

Salicylic acid is one of the elicitor substances that can be used to reduce the level of damage of plants, both by pathogen and herbivore. The application of salicylic acid also affects plant growth and productivity. The impact of the salicylic acid application on a plant varies, such as depending on concentration, mode of application, and plant species. This research aimed to know the effect of different salicylic acid concentrations on mealybug development and papaya growth. The results showed that salicylic acid at concentrations of 100 mg/l slowed mealybug development and suppressed the amount of fecundity. Still, it caused a plant to grow smaller relatively. The application of salicylic acid at a concentration of 50 mg/l was the best treatment because it provided the best growth of papaya plants and suppressed the fecundity of mealybug.
Pengaruh Aplikasi Beberapa Jenis Bahan Aktif Insektisida Sintetis terhadap Predator Eocanthecona furcellata (Wolff) di Laboratorium: english Rustam, Rusli; Fauzana, Hafiz; Salbiah, Desita; Pamungkas, Nailul Hakim
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.18-25.2019

Abstract

Application of various synthetic insecticides to control fire caterpillar (Setora nitens) on palm oil plantation has negative impact on predator Eocanthecona furcellata, the natural enemy of fire caterpillar. Profenofos, deltamethrin and cypermethrin insecticides have negative effect because they can reduce population of E. furcellata. The research was conducted using contact method with concentration of 2 ml.l-1 and water as a control with 7 days in observation time. Generallly, the result of the research showed that synthetic insecticides have toxicity on E. furcellata. The profenofos had an effect on the total mortality of E. furcellata up to 63.33%, cypermethrin up to 59.99% and deltamethrin up to 53.33%. The female significantly was more tolerant than male. It is necessary to choose suitable insecticide that are not only effective in controlling S. nitens but also safe for natural enemies.
Pengaruh Auksin terhadap Ulat Grayak (Spodoptera litura Fabricius) serta Pertumbuhan dan Hasil Kentang Kultivar Granola: english Hakim, Arief Lukmanul; Mutakin, Jenal; Fajarfika, Resti
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.26-33.2019

Abstract

This research was purposed to determine the best auxin concentration against cluster caterpillar attack (Spodoptera litura Fabricius.), growth, and yield of potato (Solanum tuberosum Linnaeus). The research was conducted in Cikeris Cikandang, Cikajang, Garut, with altitude 1.298 meters above sea level in January until April 2018. The method used in this research was experimental method, Randomized Block Design (RBD) with 5 treatments of auxin (A = 0 ml/l, B = 1 ml/l, C = 2 ml/l, D = 3 ml/l and E = 4 ml/l) and 5 replications. The results of this research showed that the application of auxin did not affect the existence and attack of cluster caterpillar, but it affected the growth and yield of potato. The auxin concentration of 2 ml/l became the best concentration to plant height, tuber number, and tuber weight.
Efektivitas Ekstrak Beberapa Tumbuhan untuk Pengendalian Keong Mas (Pomacea canaliculata Lamarck) pada Tanaman Padi Sawah: english Rusli, Rusdi; Martinius, Martinius; Marzuki, Dedi
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.1-9.2019

Abstract

Golden snail is an important pest on rice plants in Indonesia. The study purposed to obtain the most effective plant extracts to suppress the golden snail population. The study was conducted at the greenhouse of Faculty of Agriculture, Universitas Andalas, Padang from November to December 2018, using a Completely Randomized Design (CRD) with six treatments and four replications. The treatment was leaf extracts from several plants with a concentration of 10 g/l, that were god’s crown or mahkota dewa (Phaleria macrocarpa), noni or mengkudu (Morinda citrifolia), breadfruit or sukun (Artocarpus altilis), ti plant or andong (Cordyline fruticosa), mangkokan (Nothopanax scutellarium), and control. The parameters observed were mortality of golden snails, percentage of clumps attacked, and intensity of golden snail attacks. The results showed that there were three leaf extracts could suppress golden snail population significantly, ie. Mangkokan, andong and mahkota dewa. The mangkokan leaf extracts was most effective in controlling golden snails which caused mortality of golden snails to reach 100% within 24 hours of exposure so that they did not attack the clumps as a whole.
Aktivitas Air Rebusan Daun dari Beberapa Tumbuhan dalam Menekan Pertumbuhan Sclerotium rolfsii Sacc. Penyebab Busuk Batang pada Tanaman Kacang Tanah secara In Vitro: english Martinius, Martinius; Gani, Suardi; Ningsih, Juita Wilna
Jurnal Proteksi Tanaman (Journal of Plant Protection) Vol. 3 No. 1 (2019): June 2019
Publisher : Plant Protection Department, Faculty of Agriculture, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.3.1.47-55.2019

Abstract

The leaves of some plants have been proved to suppress the development of plant diseases caused by pathogens. The study aimed to determine the water decoction of leaves to suppress the growth of S. rolfsii caused stem rot on peanuts in vitro. The study was conducted in the Laboratory of Phytopathology Departement of Plant Pest and Disease Faculty of Agriculture, Andalas University, from May-July 2015. The experimental design was a Randomized Complete Design (RCD) with seven treatments and six replications. The treatments were control, water decoction of Annona squamosa, Impatiens balsamina, Eclipta alba, Cymbopogon citratus and Tithonia diversifolia with concentration of 0,5% and fungicide with tebukonazol active ingredient at a concentration of 0,1%. Variables observed were macroscopic fungal culture, colony area, wet and dry weight of colonies. Data were analyzed by using ANOVA and DNMRT at a 5% of significance level.. The results showed that all water decoctions of plant leaves were able to suppress the growth of S. rolfsii. The most active of the water decoction was from T. diversifolia with suppression to colony area reached 77,32%, and wet and dry weight were 77,24% and 84,66%, respectively.

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