scholarly journals Effect of soil class and moisture on the depth of pupation and pupal viability of Bactrocera carambolae Drew & Hancock (1994)

2021 ◽  
Vol 65 (1) ◽  
Author(s):  
Eric Joel Ferreira do Amaral ◽  
Maria do Socorro Miranda de Sousa ◽  
Jhulie Emille Veloso dos Santos ◽  
Lauane Monteiro Costa ◽  
Nagib Jorge Melém Júnior ◽  
...  
Keyword(s):  
Soil Class ◽  
Bactrocera Carambolae

scholarly journals Artificial neural networks applied for soil class prediction in mountainous landscape of the Serra do Mar¹

2014 ◽  
Vol 38 (6) ◽  
pp. 1681-1693 ◽  
Author(s):  
Braz Calderano Filho ◽  
Helena Polivanov ◽  
César da Silva Chagas ◽  
Waldir de Carvalho Júnior ◽  
Emílio Velloso Barroso ◽  
...  
Keyword(s):  
Neural Network ◽  
Neural Networks ◽  
Artificial Neural Networks ◽  
Kappa Index ◽  
Class Prediction ◽  
Soil Class ◽  
Serra Do Mar ◽  
The Neural Network ◽  
Artificial Neural ◽  
Local Geology

Soil information is needed for managing the agricultural environment. The aim of this study was to apply artificial neural networks (ANNs) for the prediction of soil classes using orbital remote sensing products, terrain attributes derived from a digital elevation model and local geology information as data sources. This approach to digital soil mapping was evaluated in an area with a high degree of lithologic diversity in the Serra do Mar. The neural network simulator used in this study was JavaNNS and the backpropagation learning algorithm. For soil class prediction, different combinations of the selected discriminant variables were tested: elevation, declivity, aspect, curvature, curvature plan, curvature profile, topographic index, solar radiation, LS topographic factor, local geology information, and clay mineral indices, iron oxides and the normalized difference vegetation index (NDVI) derived from an image of a Landsat-7 Enhanced Thematic Mapper Plus (ETM+) sensor. With the tested sets, best results were obtained when all discriminant variables were associated with geological information (overall accuracy 93.2 - 95.6 %, Kappa index 0.924 - 0.951, for set 13). Excluding the variable profile curvature (set 12), overall accuracy ranged from 93.9 to 95.4 % and the Kappa index from 0.932 to 0.948. The maps based on the neural network classifier were consistent and similar to conventional soil maps drawn for the study area, although with more spatial details. The results show the potential of ANNs for soil class prediction in mountainous areas with lithological diversity.

scholarly journals Biology of Bactrocera carambolae (Diptera: Tephritidae) on four hosts

2019 ◽  
Vol 63 (4) ◽  
pp. 302-307
Author(s):  
Alison Pureza Castilho ◽  
Joel Pasinato ◽  
Jhulie Emille Veloso dos Santos ◽  
Analia e Silva da Costa ◽  
Dori Edson Nava ◽  
...  
Keyword(s):  
Bactrocera Carambolae

scholarly journals ANALISIS TINGKAT RESIKO DAMPAK GEMPABUMI DI KABUPATEN CILACAP MENGGUNAKAN METODE DSHA DAN DATA MIKROTREMOR

2020 ◽  
Vol 4 (3) ◽  
pp. 73-89
Author(s):  
Kukuh Dialosa ◽  
Rustadi Rustadi ◽  
Bagus Sapto Mulyatno ◽  
Cecep Sulaeman
Keyword(s):  
Hazard Analysis ◽  
Soil Layer ◽  
Spectral Ratio ◽  
Dominant Frequency ◽  
Soil Class ◽  
Land Type ◽  
Short Period ◽  
Hvsr Method ◽  
Ability Factor ◽  
Microtremor Measurement

Soil mechanical research has been done in Cilacap Regency using DSHA method and microtremor data. This study aims to analyze the local land response to earthquakes based on the dominant frequency parameters (f0), amplification factor (A0), wave velocity VS30 and seismic hazard analysis through deterministic approach. This research uses 193 microtremor measurement points using a short period TDS-303 type (3 component) seismometer. Microtremor data were analyzed using the Horizontal to Vertical Spectral Ratio (HVSR) method in geopsy software. DSHA analysis refers to the source of the Lembang Fault earthquake and Java Subduction zone for deterministic calculations. Based on the analysis of HVSR method, Cilacap Regency is located on land type 1 (frequency 0-1.33 Hz) and soil type 2 (frequency 1,33-5 Hz) according to Kanai Classification (1983), dominated amplification value 1,104 to 8,171 times, then Dominated by soil class E (VS30 value 183 m / s) and soil class D (183 m / s VS30 366 m / s) according to NEHRP Classification (2000). This indicates that Cilacap Regency has high vulnerability to earthquake disaster. Based on the estimated value of PGA calculation method of DSHA, from the calculation of earthquake source Subduction obtained Java PGA bedrock 0,045 g - 0,0671 g and PGA surface rock 0,1926 g - 0,4855 g and calculation of Lembang Fault obtained PGA bedrock 0, 09 g - 0.025 g and PGA surface rocks 0.017 g - 0.089 g. Based on risk map analysis (combination of dominant frequency analysis, amplification, susceptibility factor and ability factor), the highest risk areas are Kec. Adipala, Kasugihan, Binangun, Nusawungun, Cil. Middle, Cil. South, Cil. North, allegedly the soil layer constituent area is a layer of thick and soft sediments. While the low risk of Kec. Majenang and Dayeuh Luhur.

scholarly journals PENGARUH IRADIASI SINAR GAMMA [60Co] TERHADAP BACTROCERA CARAMBOLAE DREW & HANCOCK IN VITRO DAN IN VIVO

2015 ◽  
Vol 15 (1) ◽  
pp. 17
Author(s):  
Endang Sri Ratna ◽  
Kemas Usman ◽  
Indah Arastuti ◽  
Dadan Hindayana
Keyword(s):  
Gamma Ray ◽  
Lethal Dose ◽  
Fruit Fly ◽  
Probit Analysis ◽  
Adult Survival ◽  
Significance Level ◽  
Bactrocera Carambolae ◽  
Gamma Ray Irradiation

Effect of gamma irradiation [60Co] against Bactrocera carambolae Drew & Hancock in vitro and in vivo. Bactrocera carambolae Drew & Hancock is one of the most important pests on guava fruit. According to a quarantine regulation in export-import commodities, irradiation treatment is a suitable methods for eradicating infested organism, which is relatively safe for the environment. The aim of this research was to determine mortality doses and an effective dose of [60Co] gamma ray irradiation for the eradication purpose, and its implication on the survival of fruit fly B. carambolae. Two irradiation methods of in vitro dan in vivo were carried out, by exposing egg and 3rd instar larvae of B. carambolae obtained from the laboratory reared insect. Eleven doses of gamma ray irradiation of 0, 30, 50, 75, 100, 125, 150, 175, 200, 300, 450, and 600 Gy were applied, respectively. The level of 99% fruit fly mortality was estimated by the value of LD99 using probit analysis and the number of larvae, pupae and adult survival were evaluated by analysis of variance (ANOVA), and the means compared by Tukey’s test, at 5% of significance level. These result showed that the effective lethal dose (LD99) of irradiation that could be successful to eradicate eggs and 3rd instar larvae in vitro were 2225 and 2343 Gy and in vivo were 3165 dan 3177 Gy, respectively. Almost all of the treated larvae survived and developed to pupae, therefore only the minimum irradiation dose of 30 Gy allowed the pupae to develop into adults.

scholarly journals KEANEKARAGAMAN DAN KEKERABATAN LALAT BUAH (DIPTERA: TEPHRITIDAE) DI KALIMANTAN SELATAN BERDASARKAN KARAKTER MORFOLOGI DAN MOLEKULAR (RAPD-PCR DAN SEKUENSING DNA)

2013 ◽  
Vol 13 (2) ◽  
pp. 192-202
Author(s):  
M Indar Pramudi ◽  
Retno Dyah Puspitarini ◽  
Bambang Tri Rahardjo
Keyword(s):  
Dna Sequencing ◽  
Base Pair ◽  
Morphological Analysis ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Morphological Identification ◽  
Bactrocera Carambolae ◽  
Rapd Pcr ◽  
Study Sites ◽  
Group B

Diversity and phylogeny of fruit fly (Diptera: Tephritidae) in South Kalimantan based on morphology and molecular (RAPD-PCR and DNA sequencing). Seven species of fruit fly was known by morphological identification. The fruit flies were found from  trapping with methyl eugenol and fruit collecting at all study sites in South Kalimantan. The results showed that as much as 17  plants were infected by fruit fly. Dendrogram based on morphological identification analyzed by using UPGMA with MEGA 4 program consisted in a group consisting of 5 sub-groups. Bactrocera carambolae and Bactrocera papayae of morphology were still a closely related fruit fly at 0.935. Whereas, based on RAPD result analized by UPGMA using 20 character of DNA based, showed that out of seven species consisted 2 groups, 1st group were B. umbrosa,  B. occipitalis and sub-group of B. latifrons. The second group consists of sub-groups B.carambolae, B. papaya, sub-group B. albistrigata and B. cucurbitae. The results of dendrogram from sequencing DNA fruit fly analysis comprised one of group and three sub-groups. The first sub-groups were B. papayae, B. carambolae, B. occipitalis, B.latifrons. The second subgroup were B. cucurbitae and B. umbrosa. While B. albistrigata separate but still one group with another fruit flies. The results of DNA sequencing showed that there were a homology of the seven species of the fruit fly i.e at 83 base pair / bp (C), 101 bp (T), 265 bp (G), 420 bp (A), 432 bp (T), 600 bp (A ). The length of the base pair for B. occipitalis, B. cucurbitae, B. albistrigata, B. carambolae, B. papayae, B. latifrons were respectively 615, 898, 570.969, 898 and 615 bp. The results of morphological analysis and RAPD methods showed difference in the distribution of groups and sub-groups. But based on morphologycal and DNA identification seven species of fruit flies found were all same as the genebank.

scholarly journals Fecundidade e longevidade de Bactrocera carambolae Drew & Hancock (Diptera: Tephritidae)

Biotemas ◽  
2017 ◽  
Vol 30 (4) ◽  
pp. 7-13 ◽  
Author(s):  
Cristiane Ramos Jesus-Barros ◽  
Leonardo Oliveira Mota Júnior ◽  
Anália Silva Costa ◽  
Joel Pasinato ◽  
Ricardo Adaime
Keyword(s):  
Bactrocera Carambolae

Bactrocera carambolae Drew & Hancock é uma espécie exótica considerada praga quarentenária presente no Brasil, com distribuição restrita aos estados de Amapá e Roraima. O conhecimento dos diferentes aspectos da sua biologia nas condições brasileiras ainda é limitado. Este trabalho teve como objetivo determinar a fecundidade e longevidade de fêmeas de B. carambolae, obtidas em dieta artificial, em condições de laboratório. O experimento foi realizado na Embrapa Amapá, onde foram selecionados 20 casais de B. carambolae recém-emergidos, da geração F3. Cada casal foi acondicionado em uma gaiola de plástico contendo dieta alimentar, água destilada e um dispositivo artificial de oviposição e mantidas em sala climatizada (26 ± 1°C, 60 ± 10% U. R. e fotofase 12 h). Diariamente era realizada a contagem dos ovos depositados em cada dispositivo. O período de sobrevivência apresentou média de 90,70 ± 9,97 dias e longevidade máxima de 150 dias. A duração média do período pré-oviposição foi 25,15 ± 3,54 dias e do período de oviposição foi 62,73 ± 7,84 dias. A fecundidade foi variável ao longo do tempo, apresentando pico de oviposição no 28º dia. O número médio de ovos por fêmea foi 1.088,26 ± 167,82. Esses resultados sugerem que B. carambolae parece utilizar a alta fecundidade e a longevidade como estratégia reprodutiva.

Overview of the Programme to Eradicate Bactrocera carambolae in South America

2016 ◽  
pp. 705-736 ◽  
Author(s):  
David Midgarden ◽  
Alies van Sauers-Muller ◽  
Maria Julia Signoretti Godoy ◽  
Jean-François Vayssières
Keyword(s):  
South America ◽  
Bactrocera Carambolae
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