scholarly journals TINGKAT SERANGAN HAMA PENGGEREK POLONG, Maruca testulalis Geyer (Lepidoptera: Pyralidae)) PADA DELAPAN VARIETAS KACANG HIJAU (Vigna radiata L.) DAN PENGARUHNYA TERHADAP HASIL

2019 ◽  
Vol 21 (1) ◽  
pp. 55-61
Author(s):  
Minal Faizin ◽  
Nadrawati Nadrawati ◽  
Edhi Turmudi

[THE INCIDENCE OF POD-BORER, Maruca testulalis Geyer (Lepidoptera: Pyralidae) IN EIGHT MUNG BEAN VARIETIES (Vigna radiata L.) AND ITS EFFECT ON YIELD]. Mung beans are an essential food crop in Indonesia, whose production is still increasing to meet domestic needs. However, the high attack of plant pests Maruca testulalis Geyer (Lepidoptera: Pyralidae) is one of the leading causes of the low production of green beans. The use of superior varieties is one solution to controlling these pests. This study was conducted to test seven superior varieties of green beans, namely Vima 1, Vima 2, Vima 3, Murai, Kenari, Kutilang and Seriti and one local variety against M. testulalis. The study used a completely randomized block design and was repeated three times. The results showed that the mungbean varieties Vima 1, Vima 2, and Vima 3 had M. testulalis attack with the lowest level of seed damage in sequence, namely 5.84%, 7.94%, and 6.39%. Even though the percentage of pod borers attack did not significantly affect the growth of all Balitkabi superior varieties and one local variety of mungbean planted, the Kutilang variety was the highest yield with seed yield rates that were as low as other low-attack varieties.

Author(s):  
V.P. Meena ◽  
S.K. Khinchi ◽  
D.K. Bairwa ◽  
Akhter Hussain ◽  
K.C. Kumawat ◽  
...  

Background: Gram pod borer, Helicoverpa armigera (Hubner) and spotted pod borer, Maruca testulalis (Geyer) are important pod boring insects infesting the greengram, [Vigna radiata (L.) Wilczek] throughout the India. A number of synthetic insecticides are known to be effective against these borers but most of them have been phased out as a result of high toxicity to the pollinators and other biotic fauna, therefore, a group of new chemical insecticides with biopesticides have been tested for bioefficacy against these insect pests. Method: A field experiment was conducted at S.K.N. College of Agriculture, Jobner, Rajasthan during kharif, 2018 in randomized block design (RBD) with 9 treatments and 3 replications. The observations were recorded of Helicoverpa armigera (Hubner) and spotted pod borer, Maruca testulalis (Geyer) borers one day before and 1, 3, 7 and 15 days after application of insecticides and biopesticides in each the spray from ten randomly selected and tagged plants/ plot. From the data recorded per cent reduction in population over control was calculated. The per cent pod damage was calculated by counting damaged pods out of healthy pods of greengram. Result: The spinosad 45 SC (0.01%) proved to be most effective, indoxacarb 14.5 SC (0.01%) followed by fipronil 5 SC (0.01%), whereas, treatments of neem leaf extract (10.00%), Beauveria bassiana 1.15 WP 1X108 spore/ l proved to be least effective. The maximum seed yield of 9.13 q ha–1 was obtained in the plots treated with spinosad 45 SC (0.01%) followed by indoxacarb 14.5 SC (0.01%) (8.89 q ha-1), fipronil 5 SC (0.01%) (8.60 q ha-1).


Agrologia ◽  
2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Febby Polnaya ◽  
J.E Patty

The objective of  this research was to determine appropriate variety combinations maize and mungbeans in multiple cropping system and the effect on yield, and also to determine Land Equivalency Ratio in the multiple cropping system. The experiment was conducted in Paso Village, Ambon City. A Randomized Block Design was used with two factors The first factor was maize variety consisting of 3 varieties: BISI-2 hybrid (J1), local variety with purple seeds (J2) and local variety with white seeds (J3). The second factor was mungbean variety, consisting of 3 varieties:  Murai variety (K1), local variety with red seeds (J2) and local variety with matt seeds (J3). Each treatment had three replicates and 6 monocultures were added as control.  Results of the experiment showed that maize variety and mungbeans variety affected significantly on growth and crop yield.  BISI-2 maize produced  highest seed number per row, 100 seed weight and seed weight per plot, and pod number per plant.  J1K1 treatment combination gave highest seed weight per hectare, i.e. 7,63 ton of maize and  0.73 ton/ha of mungbean seeds.  There was a significant effect of the interaction on Land Equivalency Ratio, and the highest value (4.07) was found in the treatment combination of J1K1


Author(s):  
Sri W. Indiati ◽  
Ratri T. Hapsari ◽  
Yusmani Prayogo ◽  
Sholihin . ◽  
Titik Sundari ◽  
...  

Background: Pod borer, Maruca testulalis is one of the harmful mung bean pests and cause substantial damage to the crop or failure to harvest. This study was carried out to identify the level of resistance to pod borer of mungbean accessions. Methods: Field research was conducted at Muneng Experimental Farm, Probolinggo, East Java, Indonesia in the 2018 dry season using the randomized block design and repeated two times. A total of 50 accessions of mungbeans were planted in two growing environments, namely: L1 = controlled environment (Maruca pest was controlled with NPV biopesticide 2 g/liter of water) and L2 = uncontrolled environment (Maruca pest was not controlled with any kind of pesticide). Observations were made on the intensity of borer attack and dry seed weight. Result: Eleven accessions gave a low resistant (LR) to moderately resistant (MR) categories responses against M. testulalis attacks. The pod damage from the eleven selected accessions was less than 15% under environmental conditions without control (L2). Control application (L1) reduced pod damage by 48.5% and increased mung bean seed yield by 25%, compared to without control (L2). The eleven accessions that were consistent or stable with low attack intensity under conditions with and without control gave dry seed weights above average, except for accessions (MLGV 0054, MLGV 0115 and MLGV 0320) which had dry seed weights lower than the average both in the growing environment with control (L1) or without control (L2).


2021 ◽  
Vol 9 (2) ◽  
pp. 186
Author(s):  
Dimas Anggi Ananta ◽  
G.P. Ganda Putra ◽  
I Wayan Arnata

Cocoa pod husk is a by-product of cocoa processing which is quite abundant and has not been used optimally. Cacao pod husk can be used more optimally by extracting, its content of polyphenol compounds which can be used as natural antioxidants. The aim of this study were to determine the effect of temperature and maceration time of cocoa pod husk extract as a source of antioxidants and to determine the best type of temperature and maceration time to produce cocoa pod husk extract as a source of antioxidants. This experiment was designed by using factorial randomized block design. The first factor was type of maceration temperature consisting of 30±2°C, 45±2°C and 60±2°C. The second factor was maceration time, which were done for 24, 36 and 48 h. The data were analyzed with analysis of variance and continued with the Tukey test. The results showed that the temperature and time of maceration had a very significant effect on yield, total phenolic and antioxidant capacity of cocoa pod husk extract. Interactions between treatments had a very significant effect on total phenolic and antioxidant capacity but did not significantly affect the yield of cocoa pod husk extract. The best treatment for producing cocoa pod husk extract as a source of antioxidants was using maceration temperature 60±2°C and maceration time for 36 h with yield characteristics 5,28±0,15%, total phenolic at 168.16±0,06 mg GAE/g and capacity antioxidant 130.94±0.84 mg GAEAC/g. Keywords: Cocoa pod husk, extraction, temperature, time, antioxidants.


Author(s):  
Susilawati Astrodjojo ◽  
Suratman Sudjud ◽  
Sri Soenarsih DAS

Rice is an essential food crop besides corn and soybeans. The need for rice each year increases along with population growth. One of the pests affecting rice is the white rice stem borer. The present research aimed to test the effectiveness and to examine the interaction between plant age and the number of Tricogramma japonicum parasitoid. The research was carried out at the Agrotechnology Laboratory of the Faculty of Agriculture, Khairun University, Ternate, and the rice fields of Bumi Restu village SP I, East Wasile district. The research design operative was a randomized block design where factor A (A1 = 21 DAS, A2 = 42 DAS, A3 = 56 DAS) was the age of the plant, and factor B (B0 = 0, B1 = 50, B2 = 100, B3 = 150) was the number of eggs of Corcyra cephalonica. Biological control using different amounts of Trichogramma japonicum parasitoid led to different interactions and results for each tested parameter. For the number of egg groups, there was no interaction with plant age, but the treatments which were found effective in suppressing stem borer populations were B2 and B3 (100 and 150). The most effective pias as indicated by damage intensity parameter was B3 (150), which was applied to plants aged 21 DAP. Furthermore, for plant height, different number of parasitoids poses significantly effective results. Percentage unhulled grain of pias B3 (150) causes insignificant damage. For production there is no interaction with plant age, but pias B2 (100) shows high yield. The conclusion is that pias B3 (150) applied to 21 days of plants is very effective in controlling white rice stem borer.


2020 ◽  
Vol 9 (2) ◽  
pp. 15-21
Author(s):  
Ni'matuljannah Akhsan

ABSTRACT The aim of this research is to control environmentally friendly soybean pod borer by utilizing plants in swamps as a vegetable insecticide, namely Kepayang (Pangiumedule). The study was conducted on tidal land in the Village of Kiri Dalam, Barambai District, Barito Kuala Regency, South Kalimantan Province. The study was designed in a randomized block design with 5 replications. The treatment is; 1. Kepayang leaf extract, 2. Without control, 3.Neem plant extract, 4. Chloriliprol insecticide. The results showed that the Kepayang leaf extract can be used as a botanical insecticide controlling soybean pod borer because it can suppress soybean pod attack by up to 62% and is no different from the Chloriliprol insecticide treatment by 64%. Keywords: Applications, Swamp Plants, Boring Pods Borers, Tidal Swamps


2020 ◽  
Vol 8 (1) ◽  
pp. 150
Author(s):  
I Wayan Gde Angga Prasetya ◽  
G.P. Ganda Putra ◽  
Luh Putu Wrasiati

Cocoa bean husk is a waste of cocoa processing that is large enough and has not been used optimally. Cocoa bean husk waste can be used more optimally by extracting polyphenol compound and used as natural antioxidant. This research aims to determine the effect of the type of solvent and maceration time of cocoa bean husk extract as a source of antioxidants and to determine the best type of solvent and maceration time to produce cocoa bean husk extract as a source of antioxidants. This experiment uses a randomized block design with two factors. The first factor is the type of solvent consisting of methanol 95 percent, ethanol 96 percent and acetone 90 percent. The second factor is the maceration time consisting of 24, 36 and 48 hours. The data is analyzed by variant analysis and continued with the Tukey test. The results showed that the type of solvent and maceration time is a very significant effect on yield, total phenolic and antioxidant capacity. The interaction between treatment is a very significant effect on total phenolic and antioxidant capacity but did not significantly affect the yield of cocoa bean husk extract. The best treatment to produce cocoa bean husk extract as a source of antioxidants is using ethanol solvent and maceration time for 48 hours with a yield characteristic 11.72±0.45 percent, a total phenolic at 80.76±1.12 mg of GAE/g and Antioxidant capacity 49.55±1.13 mg GAEAC/g. Keywords : cocoa bean husk, extraction, solvent, antioxidants.


Author(s):  
Sagar Anand Pandey ◽  
S. B. Das

A field experiment on evaluation of biopesticides against gram pod borer (Helicoverpa armigera Hub.) on pigeon pea was carried out during kharif season of 2012-13. The experiment was laid out in randomized block design with three replications. Gram pod borer is a major pest of pigeon pea in India. For the management of this pest seven biopesticides were tested along with control. Among the biopesticides, Beauveria bassiana @ 1 liter / ha (1x1012 spores/ml) was found to be most effective biopesticide as it recorded lowest larval population (6.68 larvae / 5plants). The highest larval population was recorded in control (12.61 larvae /5 plants). The least effective treatment was Paecilomyces fumosoreseus (9.31 larvae /5 plants). Similar trend was observed in the grain yield as 1667.55 kg/ha, 709.41kg/ha and 1025.21kg/ha , respectively.


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