scholarly journals PENGARUH EKSTRAK BIJI BENGKUANG TERHADAP WALANG SANGIT (Leptocorisa acuta Thunb.) PADA TANAMAN PADI

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Evrialiani Rosba ◽  
Moralita Catri
Keyword(s):  
Seed Extract ◽  
Time Of Death ◽  
Severe Attack ◽  
Botanical Pesticides ◽  
Rice Plants ◽  
Randomized Design ◽  
Rice Yields ◽  
Synthetic Pesticides ◽  
Completely Randomized Design ◽  
D 20

One of the biggest pests in rice plants were walang sangit (Leptocorisa acuta Thunb.) Where an attack by sucking plant fluids resulting grain hollow and fragile in the mill. In case of severe attack can reduce rice yields reached 100%. Attempts to control this pest is mostly done with synthetic pesticides. The use of synthetic pesticides can result in damage to the environment. To overcome such effects it is necessary to control that do not pollute the environment. One way to use botanical pesticides, namely yam seed extract. The purpose of this study was to determine the effect on the control of yam seed extract walang sangit (Leptocorisa acuta Thunb.) In rice plants. This study uses a completely randomized design (CRD) with 6 treatments and 3 replications. The treatments were A (0 g / L, B (10 g / L), C (15 g / L), D (20 g / L), E (25 g / L), F (30 g / L). Data mortality observations were analyzed by analysis of variance and continued with DNMRT test. Data were collected for the time of death walang sangit (L.acuta Thunb.) and mortality walang sangit (L.acuta Thunb). The results showed that the death walang sangit (L. acuta Thunb) The fastest is at a concentration of 30 g / L is 4.7 days and the slowest was 12.67 days, whereas the mortality walang sangit (L.acuta Thunb.) is the highest is at a concentration of 30 g / L is 63.3% and the lowest concentration of 0 g / L of 5%

scholarly journals Growth Giant Prawns (Macrobracium Rosenbergii) With Different Stock Densities On The Minapadi System

2021 ◽  
Vol 2 (5) ◽  
pp. 1560-1565
Author(s):  
Mahendra Mahendra ◽  
Farah Diana ◽  
Dini Islama ◽  
Citra Dina Febrina
Keyword(s):  
Stocking Density ◽  
Rice Fields ◽  
High Productivity ◽  
Rice Productivity ◽  
Rice Plants ◽  
Average Value ◽  
Randomized Design ◽  
Rice Yields ◽  
Completely Randomized Design

Minapadi is a fish rearing system in rice fields that is carried out with rice plants. This study aims to increase the income of farmers with high productivity of rice yields and increase the production of giant prawns. The method used is a Completely Randomized Design (CRD) experiment with 3 treatments and 3 replications. The treatments were: P1 = stocking density of 100 birds/plot, P2 = stocking density of 200 birds/plot, P3 = stocking density of 300 birds/plot. This research was conducted for 90 days. Parameters observed were rice productivity and growth. The results showed that the best treatment was P2 = stocking density of 200 birds/plot. by producing an average value of rice productivity of 5 kg/50 m2 and an average value of growth of giant prawns of 4.72%.    

scholarly journals Effect of aqueous neem seed extract via irrigation on larvae of Liriomyza sativae in melon crop

2018 ◽  
Vol 36 (3) ◽  
pp. 353-356 ◽  
Author(s):  
Ewerton M Costa ◽  
Francisco EL Silva ◽  
Elton L Araujo
Keyword(s):  
Larval Mortality ◽  
Total Mortality ◽  
Seed Extract ◽  
Neem Seed ◽  
Liriomyza Sativae ◽  
Randomized Design ◽  
Soil Irrigation ◽  
Completely Randomized Design ◽  
Pupal Mortality ◽  
Neem Seed Extract

ABSTRACT The leafminer [Liriomyza sativae (Diptera: Agromyzidae)] is one of the main pests of melon crop (Cucumis melo) in the states of Rio Grande do Norte and Ceará. Thus, adopting strategies to control this destructive insect is essential. The aim of this study was to evaluate the effect of aqueous neem seed extract, applied to soil via irrigation, on leafminer larvae, in the melon crop. An experiment was conducted in greenhouse, in completely randomized design, consisting of five treatments (four doses of aqueous neem seed extract: 1; 3; 5 and 10 g/100 mL) and the control consisting only of distilled water and 10 replicates (melon plants). The treatments were applied in a single dose, via soil irrigation. In the first stage of the evaluation, 24 hours after application, the number of dead larvae per plant was counted. In the second step, pupal mortality was recorded. The total mortality was also calculated considering the number of larvae and the number of emerged adults. We verified that, increasing the concentration of aqueous neem seed extract, an increase in the larval and pupal mortality of the leafminer in melon crop was noticed. The concentration 10 g/100 mL presented the best results, resulting in 36.4% of larval mortality, 96.5% of pupal mortality and 96.8% of total mortality.

scholarly journals UJI KONSENTRASI CENDAWAN Beauveria bassiana (Bals.) Vuill TERHADAP MORTALITAS KEPIK POLONG (Riptortus linearis) F. PADA TANAMAN KEDELAI

2020 ◽  
Vol 22 (1) ◽  
pp. 9-15
Author(s):  
Rika Aprilia Fajar Riningrum ◽  
Nadrawati Nadrawati ◽  
Edhie Turmudi
Keyword(s):  
Beauveria Bassiana ◽  
Entomopathogenic Fungus ◽  
Environmentally Friendly ◽  
Effective Concentration ◽  
Experimental Unit ◽  
Time Of Death ◽  
Treatment Unit ◽  
Randomized Design ◽  
Pod Borer ◽  
Completely Randomized Design

[TESTING THE CONCENTRATION OF FUNGI Beauveria bassiana (Bals.) ON MORTALITY OF POD BORER (Riptortus linearis F.) ON SOYBEAN]. To control pod borer (Riptortus linearis F). on soybean using chemical insecticides can cause pollution to the environment, kill non-targeted insects and evolve pest resistance. The use of entomopathogenic fungus is an environmentally friendly alternative, one of which is Beauveria bassiana. (Bals.). The purpose of this study was to obtain an effective concentration of Beauveria bassiana fungi that can kill the pod borer at the 50% level.  The study was arranged in a Completely Randomized Design (CRD) consisting of 6 levels of fungi and 3 replications, where each experimental unit used 2 polybags.  Each treatment unit used 10 pod borers. The concentration of B. bassiana consisted of 105, 106, 107, 108 and 109 conidia / mL, and without fungi application as a control. The results indicated that the treatment of B. bassiana concentration on R. linearis significantly affected the percentage of mortality and the number of infected R. linearis, but no significant effect on the time of death, number of pods/plants and percentage of the number of damaged soybean pods. The mortality of R. linearis is classified as low, that is, less than 50%.

scholarly journals Uji Beberapa Dosis Tepung Daun Gamal (Gliricididia sepium Jacq.) Terhadap Sitophilus oryzae L. Pada Beras Di Penyimpanan

2018 ◽  
Vol 1 (1) ◽  
pp. 24
Author(s):  
Rusli Rustam ◽  
Agus Sutikno ◽  
Jamiatul Laila
Keyword(s):  
Sitophilus Oryzae ◽  
Total Mortality ◽  
Gliricidia Sepium ◽  
Time Of Death ◽  
Randomized Design ◽  
Plant Pest ◽  
Leaf Powder ◽  
Lethal Time ◽  
Completely Randomized Design ◽  
Dose Levels

Rice is one of serealea comodity that susceptible with pest storage. One of the pest that often attack the rice in storage is Sitophilus oryzae L. The alternative for control S. oryzae L. as fumigant which enviromentally sound is Gliricidia sepium Jacq. as organic insecticide. This research aims to get the best dose G. sepium Jacq. leaf powder to control S. oryzae L. pest in rice storage. This research conducted at Laboratory of Plant Pest, Faculty of Agriculture, University of Riau, Pekan baru from Mei until Juni 2016. This research arranged experimentally by using Completely Randomized Design consisting of 5 treatments and 4 replications. The treatment consist of 5 dose levels were 0 g/100 g rice, 2 g/100 g rice, 4 g/100 g rice, 6 g/100 g rice and 8 g/100 g rice. The result showed that giving of G. sepium Jacq. leaf powder with dose 8 g/100 g rice causes time of death beginningS. oryzae L. during 31.50 hours after application, lethal time 50 during 282.8 hours after application, total mortality was 70%, amount of generation was 9,75 beetles and  decrease of seed weight’s rice was 1.08%.

scholarly journals EFIKASI EKSTRAK BIJI JARAK PAGAR MORTALITAS LARVA PENGGULUNG DAUN (Lamposema indicate) PADA TANAMAN KEDELAI (Glycine max)

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Chairudin Chairudin ◽  
Sumeinika Fitria Lizmah ◽  
Rol Mahdi
Keyword(s):  
Glycine Max ◽  
Seed Extract ◽  
High Concentration ◽  
Leaf Roller ◽  
Randomized Design ◽  
Soybean Leaf ◽  
Completely Randomized Design ◽  
Soybean Plants ◽  
Soybean Leaves ◽  
Experimental Garden

Soybean leaf roller known as Lamposema indicata. These insects attack the leaves of soybean plants by rolling up soybean leaves, that are launched 3-4 weeks after planting. The research aims to find out application of Jathropha curcas extract againts the mortality of soybean leaf roller pest (Lamposema indicata) and reduce damage to soybean plants. This research was conducted in the experimental garden, Faculty of Agriculture, Teuku Umar University in October to November 2019. The research was arranged in a non factorial Completely Randomized Design consisting of 4 levels with 5 replications. The factors experience is Jathropha curcas seed extract concentrate are E1 (control), E1 (20%, E2 (13.3% and E3 (10%). The results shows Lamprosema mortality shows the highest found in the E3 regulation, this is because in the E3 setting it has a high concentration so that the composition of the poisons contained is also high. Castor seed extract (Jatropha curcas) contains the composition of phorbol ester and cursin. Based on the observations displayed during the observation, namely changes in behavior, slowing movement of larvae, discoloration from clear green to pale yellow and compacting of the larva's body cavity.Keywords: Effectiveness of concentration, mortality, leafworm caterpillars

scholarly journals Application of Riau local entomophatogenic fungi Beauveria bassiana toward brown planthopper pest and production of rice

2021 ◽  
Vol 3 (1) ◽  
pp. 124-129
Author(s):  
Hapsoh ◽  
Desita Salbiah ◽  
Isna Rahma Dini ◽  
Widia Sari
Keyword(s):  
Entomopathogenic Fungi ◽  
Brown Planthopper ◽  
Rice Production ◽  
Crop Failure ◽  
Plant Pests ◽  
Randomized Design ◽  
Synthetic Pesticides ◽  
Completely Randomized Design ◽  
Attack Intensity

The decrease in rice production can be caused by pests that can damage the quality and quantity. Pests that always attack rice plants are Brown planthopper. The BPH causes several effects, namely hopperburn, as a virus vector and can cause crop failure. The control of BPHs by farmers to date is by using synthetic pesticides. The use of synthetic pesticides can cause residues, resistance, resurgence, and the destruction of natural enemies. The use of synthetic insecticides can be minimized by using environmentally friendly and sustainable control alternatives, namely by using the local entomopathogenic fungi B. bassiana. This study aims to determine the effect of the application of local Riau B. bassiana on BPH and rice production.The research was conducted at the Laboratory of Plant Pests and Experimental Gardens, Faculty of Agriculture, Riau University from April to July 2020. The research was designed a completely randomized design with five treatments local entomopathogenic fungi concentrations B. bassiana 0 g.l-1 water, 10 g.l-1 water, 20 g.l-1 water, 30 g.l-1 water, 40 g.l-1 water and four replications, in order to obtain 20 experimental units. The results showed that application of Riau local B. bassiana with a concentration of 40 g.l-1 for six days was able to cause the highest mortality of 92.5%. The higher the concentration of Riau local B. bassiana, the lower the attack intensity. The attack of brown planthopper nymphs affects the quality of rice production, but did not affect the quantity of rice production.

scholarly journals DETECTION AND TRANSMISSION OF RICE STUNT VIRUS ON CIHERANG AND SITU BAGENDIT VARIETIES

2019 ◽  
Vol 18 (2) ◽  
pp. 169
Author(s):  
Selvi Helina ◽  
Sri Sulandari ◽  
Sedyo Hartono ◽  
Andi Trisyono
Keyword(s):  
Plant Height ◽  
Incubation Period ◽  
Rice Production ◽  
Rice Plants ◽  
Inhibition Of Growth ◽  
Randomized Design ◽  
Significant Difference ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Rice Ragged Stunt Virus

Detection and Transmission of  rice stunt virus on Ciherang and Situ Bagendit Varieties. The explosion of brown planthoppers recently has caused reduction of rice production in Indonesia. Brown planthoppers do not only act as pest, but also transmit Rice grassy stunt virus (RGSV) and Rice ragged stunt virus (RRSV). Detection of the existence of the two viruses in rice plants and vector insects is important to be done to ensure that the virus is infected with the vector. The aim of this research is to detect the existence of virus in varieties of Ciherang and Situ Bagendit as a result of transmission in the laboratory and to find out the ability of brown planthoppers to transmit stunt virus to both of the varieties. This research was compiled using Completely Randomized Design (CRD) with 4 treatments, namely healthy rice plants of Ciherang and Situ Bagendit varieties, Ciherang and Situ Bagendit varieties which were infested by brown planthoppers each with 5 repetitions. The parameters observed were incubation period, symptoms, plant height, number of leaves and incidence of disease. The data on plant height, number of leaves and incidence of disease were analyzed using ANOVA and continued with the Least Significant Difference (LSD) test at the level of 5%. The results showed that Ciherang and Situ Bagendit varieties were only positively infected by Rice ragged stunt virus. The results of the rice transmission showed that Ciherang variety had a faster incubation period of 10 DAI while Situ Bagendit was 14 DAI, but the two varieties showed an inhibition of growth in plant height and number of leaves compared to healthy plants with each incidence of 51.3% and 46.3%.

scholarly journals Effectiveness of Strychnos ligustrina Bl. Extract as Feed Supplementation to Increase Immune System of Nile Tilapia (Oreochromis niloticus) wich againts Streptococcus agalactiae

2018 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Anis Zubaidah ◽  
Kuny Riski Faidah ◽  
Sri Samsundari
Keyword(s):  
Streptococcus Agalactiae ◽  
Leukocyte Count ◽  
Hematocrit Level ◽  
Feed Supplementation ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Concentration Test ◽  
Completely Randomized Design ◽  
D 20 ◽  
Phagocytosis Activity

One of the problems of intensive cultivation of tilapia is the attack of Streptococcosis disease caused by Streptococcus agalactiae bacteria. To prevent it is necessary to prevent the use of natural antibiotics that is Strychnine bush extract. The method used in this research is the experimental method using Completely Randomized Design (RAL), then the data is analyzed by using ANAVA. In this research, there were five treatments with various dosages, namely treatment (K: 0%), (A: 5%), (B: 10%), (C: 15%) and (D: 20%), each treatment was repeated four times. The main parameters used are hematocrit level, leukocrit level, leukocyte count and phagocytosis activity. As a supporting parameter is water quality and MIC (Minimum Inhibitation Concentration) test. The results showed that dosage of Strychnine bush extract did not affect the level of hematocrit and leukocrit level, but significant effect on leukocyte count with the highest value at treatment B with 10% dose is 11,9 × 105 cell / mm3. Giving extract also significant effect on phagocytosis activity with the highest phagocytosis value at treatment B with dose of 10% that is 32%.Keywords: Imune system, Streptococcosis, antibiotics, Minimum Inhibitation Concentration

POTENSI BIJI JARAK PAGAR SEBAGAI RODENTISIDA ALAMI

2021 ◽  
Vol 23 (2) ◽  
pp. 98-105
Author(s):  
Edo Legianto Pratama ◽  
Tuti Heiriyani ◽  
Riza Adrianoor Saputra
Keyword(s):  
Mus Musculus ◽  
Fish Meal ◽  
Rice Flour ◽  
Time Of Death ◽  
Average Decrease ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Jatropha Seeds ◽  
Jatropha Seed

[JATROPHA SEED POTENTIAL AS A NATURAL RODENTICIDE]. The controlling of rat's pest attacks often use chemical control that adversely affects non-target animals and leaves a residue for the environment. One of the recommended controls is to use natural rodenticides derived from jatropha seeds and do not harm non-target animals that are environmentally friendly. This research aims to determine the interaction and the best combination of bait mixed with jatropha seeds on the death of Mus musculus, as well as the type of bait and the best dose of jatropha seeds on the death of Mus musculus. The design in this study used a completely randomized design consisting of two factors, the first factor was the bait and the second factor was the dose of jatropha seeds. The results showed that there was an interaction between the type of bait and the dose of jatropha seeds on the amount of feed consumed by Mus musculus. The combination of bait type and dose of jatropha seeds that was best for the mortality of Mus musculus was found in the treatment of rice flour with 3.0 g of jatropha seeds, cornflour with 3.0 g of jatropha seeds, and fish meal with 3.0 g of jatropha seeds. The best dose of jatropha seeds in reducing the bodyweight of Mus musculus, accelerating the time of death, and increasing the percentage of death was 3.0 g of jatropha seeds with an average decrease in body weight of Mus musculus reaching 75%, and the fastest death for five days, and able to kill 100% of Mus musculus.

scholarly journals Application of Several Types of Rhizome Powder in Controlling Sitophilus Oryzae L. Pests in Local Siam Mutiara Rice

2020 ◽  
Vol 6 (2) ◽  
pp. 38-43
Author(s):  
Riza Adrianoor Saputra ◽  
Noor Khamidah
Keyword(s):  
Design Method ◽  
Sitophilus Oryzae ◽  
Population Development ◽  
Botanical Pesticides ◽  
Randomized Design ◽  
Ginger Rhizome ◽  
Completely Randomized Design ◽  
The One ◽  
Red Ginger ◽  
Mortality Percentage

Rice is the staple food of the Indonesian population. Siam Mutiara is the preferred local variety of rice in South Kalimantan. Sufficient rice availability must be supported by a rice surplus as food reserves.The main problem with rice storage is the emergence of Sitophilus oryzae L. Therefore it is necessary to control the pest. Non-toxic botanical pesticides can be applied to control S. oryzae. This study aimed to determine the effect of the application of several types of rhizome flour on the mortality rate of S. oryzae, population development of S. oryzae, and weight of Siam Mutiara rice to obtain the most effective rhizome flour. The research was conducted in March 2020 - August 2020 at the Agroecotechnology Production Laboratory, Faculty of Agriculture, Lambung Mangkurat University. The one-factor Completely Randomized Design method (CRD) was used by treating z0 (control/without rhizome powder), z1 (red galangal rhizome powder), z2 (kencur rhizome powder), z3 (red ginger rhizome powder), and z4 (rhizome powder combination). The treatment was repeated 4 times so that there were 20 experimental units. The results showed that the application of red galanus rhizome powder, sling rhizome powder, red ginger rhizome powder, and rhizome powder combination was able to control the population development of S. oryzae and weight damage of Siam Mutiara rice due to S. oryzae pests. The rhizome powder that was most effective in controlling S. oryzae was z1 (red galangal rhizome powder) with a mortality percentage of 32.50%, population of 7 individuals, and rice weight of 99.96%; z2 (kencur rhizome powder) with a mortality percentage of 65%, population of 3 individuals, and rice weight of 99.97%; z3 (red ginger rhizome powder) with a mortality percentage of 62.50, population of 4 individuals, and rice weight of 99.96%; and z4 (rhizome powder combination) with a mortality percentage of 47.50%, population of 5 individuals, and rice weight of 99.95%.

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