scholarly journals HAMA TANAMAN BELIMBING DI WILAYAH KABUPATEN BLITAR JAWA TIMUR

2017 ◽  
Vol 16 (2) ◽  
pp. 175
Author(s):  
Wildan Muhlison ◽  
Hermanu Triwidodo ◽  
Pudjianto .
Keyword(s):  
Population Density ◽  
Bactrocera Dorsalis ◽  
Pest Species ◽  
Maconellicoccus Hirsutus ◽  
Bactrocera Carambolae ◽  
Star Fruit ◽  
Toxoptera Aurantii ◽  
Four Quadrant ◽  
Cryptophlebia Leucotreta ◽  
Damage Symptoms

Pests of star fruit in Blitar District, East Java. Pest attack causes the production of star fruit decreases. This study aim was to identify the pests of star fruit in Blitar District which could provide an information about pest species, damage symptoms and damage intensity. The research was conducted during August – September 2014 in Gogodeso, Karangsonoand Pojok Villages at Blitar District, East Java. Observations of the pests ware done by determining the four locations of plantation on each villages randomly. Three plants sample were choosen in each plantation location diagonally. Each plant was divided into four quadrant according to wind directions. One branch in the bottom was choosen in each quadrant. Nine species were recorded as pests of starfruit in Blitar district. Pest was identified on the leaf was Pteroma plagiophleps, on the branch was Zeuzera coffeae, on the flower were Toxoptera aurantii and Maconellicoccus hirsutus, whereas those on the fruit were Toxoptera aurantii, Maconellicoccus hirsutus, Thrips javanicus, Helopeltis bradyi, Cryptophlebia leucotreta, Bactrocera dorsalis, and Bactrocera carambolae. The population density of M. hirsutus was higher in Karangsono than in other villages. The highest damage intensity was caused by Bactrocera spp., C. leucotreta and H. bradyi (occured in Gogodeso), whereas the highest damage intensity of T. javanicus occurred in Pojok.

scholarly journals Host preference fruit flies Bactrocera carambolae (Drew & Hancock) and Bactrocera dorsalis (Drew and Hancock) (Diptera: Tephritidae)

2018 ◽  
Vol 15 (1) ◽  
pp. 40
Author(s):  
Dodin Koswanudin ◽  
Adi Basukriadi ◽  
I Made Samudra ◽  
Rosichon Ubaidillah
Keyword(s):  
Host Preference ◽  
Mangifera Indica ◽  
Fruit Fly ◽  
Psidium Guajava ◽  
Bactrocera Dorsalis ◽  
Economic Losses ◽  
Fruit Species ◽  
Bactrocera Carambolae ◽  
Star Fruit ◽  
Specimen Collection

Host plant preference amongst several fruit species was studied for two fruit fly species i.e. Bactrocera carambolae (Drew & Hancock) and Bactrocera dorsalis (Drew & Hancock), which both belong to B. dorsalis species complex. Both fruit fly species are known to be polyphagous and cause significant economic losses as pests of fruit crops. The aim of this research was to assess the host range of these major pests in Indonesia. The research was conducted at the Entomology Laboratory and Insect Specimen Collection Laboratory, Indonesian Center for Agriculture Biotechnology and Genetic Resource Research and Development, Bogor, West Java, Indonesia from June 2011 to March 2012. Comparative host preference for both species was studied with regard to malaya varieties of star fruit (Averrhoa carambolae), manalagi varieties of mango (Mangifera indica), guava aka water apple (Psidium guajava), citra water guava (Eugenia aquae), jamaica bol guava (Eugenia malaccenensis), and california papaya (Carica papaya). Our results suggest the strongest preference for malaya star fruit by B. carambolae followed by manalagi mango; and for california papaya followed by manalagi mango by B. dorsalis. The study also found that welahan variety star fruit is least preferred by both species of fruit fly.

Effect of fruit and host fly species on the associative learning by Fopius arisanus

2019 ◽  
Vol 109 (05) ◽  
pp. 649-658
Author(s):  
A. Monsia ◽  
G.S.B. Mègnigbèto ◽  
D. Gnanvossou ◽  
M.F. Karlsson
Keyword(s):  
Biological Control ◽  
Associative Learning ◽  
Fruit Fly ◽  
Bactrocera Dorsalis ◽  
Pest Species ◽  
Fopius Arisanus ◽  
Host Fruit ◽  
Control Programmes ◽  
Odour Learning ◽  
Ceratitis Cosyra

AbstractParasitoids, released in augmentative biological control programmes, which display a rapid host-location capacity, have a higher likelihood of successfully controlling target pest species. By learning to associate sensory cues to a suitable oviposition site, might parasitoids used as biological control agents, locate hosts more rapidly, and perhaps increase the efficacity of e.g. Tephritidae fruit fly management. We studied associative learning of Fopius arisanus (Hymenoptera: Braconidae) and tested its range of learning in natural and conditional hosts and host fruits, i.e. Bactrocera dorsalis, Zeugodacus cucurbitae, Ceratitis capitata and Ceratitis cosyra (Diptera: Tephritidae) and on fruits (papaya, tomato, banana). Naïve female F. arisanus were compared with experienced wasps, which had been offered infested and non-infested fruit, and been allowed to oviposit. Preferences for olfactory cues from infested fruits were thereafter assessed in a two-choice olfactometer. Naïve and trained parasitoids preference differed in general and non-responders to infested fruits were higher among naïve parasitoids. The trained wasps preferred the fruit infested in the training more than the control fruit, for all combination, except when C. cosyra infested the fruits, hence avoidance behavioural response was observed towards the odour of the infested fruit. Fopius arisanus was capable of behaviourally respond to the learned information, e.g. associative odour learning was achieved, yet limited depending on interaction level, fruit fly and fruit combination. To create F. arisanus preference of an associated odour, it might hence be needed to ensure oviposition in perceived suitable host and host fruit, for the parasitoid learning to become favourable in a biological control setup.

scholarly journals Nonhost Status of Mangosteen to Bactrocera dorsalis and Bactrocera carambolae (Diptera: Tephritidae) in Thailand

2014 ◽  
Vol 107 (4) ◽  
pp. 1355-1361 ◽  
Author(s):  
Udorn Unahawutti ◽  
Rachada Intarakumheng ◽  
Pitawat Oonthonglang ◽  
Salukjit Phankum ◽  
Peter A. Follett
Keyword(s):  
Bactrocera Dorsalis ◽  
Bactrocera Carambolae

scholarly journals Oviposition Preference of Bactrocera dorsalis Hendel (Diptera: Tephritidae) on Different Fruit in Snake Fruit Orchard

2021 ◽  
Vol 24 (2) ◽  
pp. 224
Author(s):  
Rahmi Fitrah ◽  
Deni Pranowo ◽  
Suputa Suputa
Keyword(s):  
Plant Protection ◽  
Oviposition Preference ◽  
Fruit Fly ◽  
Psidium Guajava ◽  
Fruit Flies ◽  
Bactrocera Dorsalis ◽  
Trap Crops ◽  
Guava Fruit ◽  
Star Fruit ◽  
Fruit Orchard

The oriental fruit fly Bactocera dorsalis (Hendel) is an important pest of snake fruit (Salacca zalacca) in Sleman District. Due to the high level of damage by the fruit flies, it is necessary to do. The aim of this research was to find out suitable fruit traps, by testing the oviposition preferences of the fruit flies in the orchard to lay eggs on several types of fruit. The research was done in snake fruit orchard located at Sleman Yogyakarta and owned by farmers, while the Lab works were done at the Laboratory of Entomology, Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada. All researches were done between April-June 2019. Guava (Psidium guajava), watery rose apples (Syzygium aqueum), starfruit (Averrhoa carambolae), and snake fruit (Salacca zalacca) were used as trap crops. Each fruit, with the same maturity level, was hung 1.5 m above the ground for 4 days with 12 days total trapping at intervals of 3 times. After the test, each fruit was taken and the insects in it were reared in the laboratory. The number of pupae and flies that emerged from each fruit was counted and compared. The results showed that in the orchard 1 as well as  2, of guava fruit produced the highest number of (151 pupae) followed by salak (94 pupae), star fruit (83 pupae), and water guava (2 pupae). The finding of seeds shows that guava fruit is the most suitable host for the fruit flies to be used in the trapping, followed by star fruit and watery guava.

scholarly journals Historical perspective on the synonymization of the four major pest species belonging to the Bactrocera dorsalis species complex (Diptera, Tephritidae)

ZooKeys ◽  
2015 ◽  
Vol 540 ◽  
pp. 323-338 ◽  
Author(s):  
Alvin Hee ◽  
Suk-Ling Wee ◽  
Ritsuo Nishida ◽  
Hajime Ono ◽  
Jorge Hendrichs ◽  
...  
Keyword(s):  
Species Complex ◽  
Historical Perspective ◽  
Bactrocera Dorsalis ◽  
Pest Species ◽  
Major Pest

scholarly journals Effect of Silicon fertilization on two major insect pests of tomato under greenhouse conditions

2021 ◽  
Author(s):  
Aqeel Alyousuf ◽  
Dawood Hamid ◽  
Mohsen A. Desher ◽  
Amin Nikpay ◽  
Henk-Marten Laane
Keyword(s):  
Population Density ◽  
Insect Pests ◽  
Insect Pest ◽  
Tomato Leaf ◽  
Leaf Miner ◽  
Pest Species ◽  
Tomato Crop ◽  
Soil Drench ◽  
Tomato Leaf Miner ◽  
Acid Formulation

Abstract Tomato (Solanum lycopersicum L) is an important vegetable crop in Iraq. This horticultural crop is attacked by several insect pest species. Among them, the whitefly Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) and the tomato leaf miner Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) are the major threat of greenhouse tomatoes in Basrah province in south Iraq. The management of these pests is heavily based on application of chemical pesticides. Vast application of pesticides caused harmful damage to the environment, human health and may increasing the risk of pest resistance on insect populations. One of the promising strategies which are compatible with organic farming is application of silicon for enhancing plant vigor and resistance to pest damage on various agricultural crops. Due to these facts, the experiments have been carried out at Basrah University to evaluate the effects of silicon (Si) fertilization on tomato plants for reducing damage of these two major pests. Treatments comprised two type of Si applications (Soil drench treatment and foliar spraying) with four Si concentrations (0, 0.5, 1 and 2%) of AB Yellow ® silicic acid formulation. The population density of B. tabaci and T. absoluta were studied weekly during the growth season. The results clearly demonstrated that Silicon applications significantly decreased the population of immature of both whiteflies and tomato leaf miner on tomato crop in the greenhouse; Si-Foliar spraying was more effective in reducing the population density of these key pests compared to Si- soil drench application.

scholarly journals Kelimpahan dan Dominansi Bactrocera spp. (Diptera: Tephritidae) pada perangkap metil eugenol di Pertanaman Cabai (Capsicum annuum L.), Desa Paya Benua, Bangka

2019 ◽  
Vol 3 (1) ◽  
pp. 36-41
Author(s):  
Herry Marta Saputra ◽  
Sarinah Sarinah ◽  
Mardian Hasanah
Keyword(s):  
Capsicum Annuum ◽  
Bactrocera Dorsalis ◽  
Capsicum Annuum L ◽  
Bactrocera Carambolae

Lalat buah Bactrocera spp. merupakan salah satu hama penting pada tanaman cabai. Tingkat kerusakan akibat serangan lalat buah pada buah cabai berkisar 60-80%. Kelimpahan dan dominansi spesies lalat buah di pertanaman cabai masih terbatas informasinya, khususnya di Pulau Bangka. Penelitian ini bertujuan untuk mengetahui kelimpahan dan dominansi spesies lalat buah yang terdapat di area pertanaman cabai di Desa Paya Benua, Bangka. Penelitian ini dilakukan di tiga kebun cabai yang berlokasi di Desa Paya Benua, Bangka. Koleksi lalat buah dilakukan dengan menggunakan perangkap steiner yang diberi metil eugenol dan pada tiap lokasi dipasang empat buah perangkap. Perangkap dipasang pada pagi (06.00-10.00 WIB), siang (10.00-14.00 WIB), dan sore (14.00-18.00 WIB). Adapun, jumlah lalat buah yang diperoleh selama penelitian sebanyak 899 spesimen. Spesies lalat buah yang terperangkap pada perangkap metil eugenol pada pertanaman cabai di Desa Paya Benua, Bangka adalah Bactrocera carambolae, Bactrocera dorsalis, dan Bactrocera umbrosa. Jumlah lalat buah Bactrocera carambolae, B. dorsalis, dan B. umbrosa berturut-turut yaitu 251, 546, dan 102 individu. Lalat buah Bactrocera dorsalis adalah spesies dominan di pertanaman cabai di Desa Paya Benua, Bangka.

scholarly journals Effect of Various Depth of Pupation On Adult Emergence of Interspecific Hybrid of Bactrocera Carambolae And Bactrocera Dorsalis

2021 ◽  
Author(s):  
Agus Susanto ◽  
Maura Gita Faradilla ◽  
Yayan Sumekar ◽  
Dwi Harya Yudistira ◽  
Wayan Murdita ◽  
...  
Keyword(s):  
Host Plant ◽  
Interspecific Hybrid ◽  
Interspecific Hybrids ◽  
Adult Emergence ◽  
Bactrocera Dorsalis ◽  
Bactrocera Carambolae ◽  
Emergence Rate

Abstract Bactrocera carambolae and B. dorsalis are genetically related in that both have the same type of host plant, and hybridization between B. carambolae and B. dorsalis may occur naturally. The depth of the pupation is one of the important factors in adult emergence rate. This objective of this study was to estimate the depth of the pupation that can suppress the emergence of adult interspecific hybrids of B. carambolae and B. dorsalis. The experiments consisting of seven depths of pupation treatments (4 cm, 10 cm, 20 cm, 30 cm, 40 cm, 50 cm, and 60 cm) with four replications. The results showed that 91% of the adult interspecific hybrids of B. carambolae and B. dorsalis emerged successfully at 4 cm depth of pupation. Furthermore, the emergence rate was found to decrease with the increase in pupation depth. Soil depths ranging between 50 and 60 cm can suppress the emergence rate of adult interspecific hybrids of B. carambolae and B. dorsalis.

scholarly journals Do national cultures matter in the containment of COVID-19?

2020 ◽  
Vol 40 (9/10) ◽  
pp. 939-961
Author(s):  
Cong Cao ◽  
Ning Li ◽  
Li Liu
Keyword(s):  
Population Density ◽  
Case Fatality ◽  
Policy Implications ◽  
Hierarchical Regression ◽  
Content Type ◽  
Cultural Variations ◽  
Cultural Variables ◽  
National Differences ◽  
Using Data ◽  
Four Quadrant

PurposeThis paper empirically investigates how cultural variations in individualism and tightness affected the containment of COVID-19 using data from 54 nations during a 30-day period of government intervention.Design/methodology/approachThe authors utilized the hierarchical regression approach to check the effects of three cultural variables – the individualism measure, taken from Hofstede’s six-dimension national culture index, and the measure of cultural tightness, based on the three tightness–looseness indexes calculated by Irem Uz (2015) and their interaction – on the changes in the prevalence rate (ΔPR) and crude mortality rate (ΔCMR) and case fatality rate (CFR) while controlling for the stringency of government responses to COVID-19, median age and population density.FindingsSignificant relationships were found between cultural variables and national performance in slowing the spread of the coronavirus, measured by ΔPR, ΔCMR and CFR. After controlling for the stringency of government responses, median age and population density, the authors found that cultural tightness and individualism as well as their interactions remain to be pivotal. Loose and individualistic cultures led to faster increases in PR and CMR and higher CFR. A four-quadrant conceptual framework is developed to categorize and discuss the national differences.Originality/valueThe paper integrated two constructs – cultural tightness–looseness and individualism–collectivism – to form a theoretical lens to guide the authors’ analyses while using the real-time COVID-19 data as a natural experiment for theorizing and testing. This study’s findings have significant policy implications in government responses, strategic planning, cultural adaptability and policy implementations for the world’s continuous battle against the pandemic.

scholarly journals Identifikasi Lalat Buah (Bactrocera spp), pada Tanaman Cabai (Capsicum Annum L.) dan Belimbing (Averrhoa Carambola L.) dikecamatan Salahutu kabupaten Maluku Tengah.

Agrikultura ◽  
2019 ◽  
Vol 30 (2) ◽  
pp. 63
Author(s):  
Betty Sahetapy ◽  
Muhammad Riadh Uluputty ◽  
La Naibu
Keyword(s):  
Bactrocera Dorsalis ◽  
Averrhoa Carambola ◽  
Capsicum Annum ◽  
Bactrocera Carambolae

Lalat buah (Bactrocera spp.) merupakan salah satu hama utama pada tanaman hortikultura di dunia. Lebih dari seratus jenis tanaman hortikultura diduga menjadi inangnya. Pada populasi yang tinggi, intensitas serangannya dapat mencapai 100%. Penelitian ini bertujuan untuk mengidentifikasi spesies atau jenis lalat buah yang menyerang belimbing dan cabai serta menghitung intensitas serangan hama lalat buah terhadap belimbing dan cabai di Kecamatan Salahutu, Kabupaten Maluku Tengah. Penelitian dilakukan dengan metode survey di lapangan dengan mengumpulkan sampel buah belimbing dan cabai yang terserang lalat buah di tiga desa yaitu Desa Liang, Tulehu dan Suli, selanjutnya buah yang terserang dibawa ke laboratorium untuk di-rearing lalat buah. Lalat buah hasil rearing kemudian diidentifikasi dengan menggunakan CD Lucid dan CD Cabikey. Hasil penelitian menunjukkan 3 spesies lalat buah yang menyerang belimbing di Kecamatan Salahutu yaitu Bactrocera albistrigta, Bactrocera dorsalis dan Bactrocera carambolae, sedangkan yang menyerang cabai rawit ada dua spesies yaitu Bactrocera dorsalis dan Bactrocera carambolae. Intensitas serangan lalat buah pada belimbing termasuk kategori ‘Sedang’ sampai ‘Tinggi’ yaitu 30%-70%, sedangkan pada tanaman cabai rawit termasuk kategori ‘Sedang’ yaitu 41%-49%.Kata Kunci: Lalat buah, Identifikasi, Intensitas serangan

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