scholarly journals Impact of abiotic factors on population dynamics of Bactrocera dorsalis Hendel and Bactrocera zonata (Saunders) at different ecological zones in NW Plains of India

2021 ◽  
Vol 22 (3) ◽  
pp. 250-257
Author(s):  
REENA ◽  
AMANDEEP KAUR ◽  
MAHENDER SINGH ◽  
BHAV KUMAR SINHA ◽  
ANIL KUMAR ◽  
...  

In India, fruit flies have been identified as one of the ten most serious problems of agriculture because of their polyphagous nature and the huge economic loss it causes to the fruits and vegetables (2.5 to 100%). Study was carried to determine the population dynamics of fruit flies (Bactrocera dorsalis and Bactrocera zonata) and establish the correlation with abiotic factors in guava and citrus fruits crops in two agro ecological zones of North West India. Fruit flies population was recorded by installation of pheromone traps in different fruit crop ecosystems during the fruiting season of this zone. The data of trap catches of both the locations was correlated with the significantly influencing abiotic parameters. The peak fruit fly incidence varied between 31st to 34th standard weeks in guava ecosystem at both the locations. In citrus ecosystem, the incidence was highest during 35th and 39th standard weeks coinciding with the ripening of the fruits. At both the locations, trap catches of guava ecosystem were positively correlated with all the weather parameters, while under citrus ecosystem minimum temperature and rainfall showed negative correlation, but relative humidity was positively correlated. Information may be utilized in targeting suitable pest management techniques for respective zones.

2021 ◽  
Author(s):  
Mohammed E. E. Mahmoud ◽  
Mohammed ◽  
Fathya M. Khamis and ◽  
Sunday Ekesi ◽  

Abstract Fruit flies of the genus Bactrocera are the most damaging pests of horticultural crops, leading to severe economic losses hindered exportation. Bactrocera dorsalis (Hendel) and Bactrocera zonata (Saunders) were reported in Sudan in 2005 and 2011 respectively affecting most of the fruits and vegetables in Sudan threatening income of poor farmers. Only Male Annihilation Technique (MAT) is applied in Sudan to manage the two Bactrocera species. A filed experiment was conducted to evaluate the response of B. dorsalis, B. zonata and Zeugodacus cucurbitae to three food-based attractants using McPhail traps in two sites in Gezira state, Sudan. Also, other trial was undertaken to determine the effect of spray of Mazoferm and Spinosad combination to control B. zonata. The results showed that food-based attractants lured both sexes of the above mentioned fruit flies and females represented (55-86%). At the first site, B. zonata responded in high numbers to Mazoferm followed by Torula yeast and GF-120 respectively while it responded equally to the Mazoferm and Torula yeast in the second site. B. dorsalis responded positively to Mazoferm followed by Torula yeast and GF-120 while Z. cucurbitae was attracted to Mazoferm, GF-120 and Torula for each attractant respectively. Spray of Mazoferm combined with Spinosad significantly reduced population of B. zonata (FTD) population and suppressed infestation level of guava fruits (fruit flies/Kg of fruits) when compared to unsprayed orchard. Bait Application Technique is an environmentally friendly approach that reduces infestation levels, lessen contamination and safeguard produce.


Agrikultura ◽  
2017 ◽  
Vol 28 (3) ◽  
Author(s):  
Agus Susanto ◽  
Yadi Supriyadi ◽  
Tohidin Tohidin ◽  
Nenet Susniahti ◽  
Vickri Hafizh

ABSTRACTFluctuation population of fruit flies Batrocera spp. (Dipthera: Tephritidae) on chilli (Capsicum annuum) plantation areas in Bandung Regency, West JavaFruit flies (Bactrocera spp.) are destructive pest that cause damages to horticulture commodities such as fruits and vegetables. The purpose of this study was to investigate fluctuation population of fruit flies in relation to abiotic factors, such as temperature, rainfall, number of rainy days, and biotic factors, such as host phenology and natural enemies. The field experiment was conducted in Pulosari Village, Pangalengan, Bandung. This research used survey method by placing 20 fruit flies traps on host plants, in which 10 traps were being placed in the outside and the others were being placed in the inside within 10 meters distance per trap. Trapped flies were collected and their population was counted in every week. The results revealed that abiotitic factors (temperature, rainfall, number of rainy days) have non significant influence indicated by the regression analysis of each temperature (Y=-101.2+2298.7x; R2=0.253; P>0.05), rainfall (Y= 0.143+154.4x; R2 = 0.004; P> 0.05), and the number of rainy days (Y= 6.607+140.51x; R2 = 0.015; P>0.05). Meanwhile, fruit fly with the dominant population was Bactocera dorsalis which was included into sibling species of Bactrocera dorsalis Complex with number of population was 93% from specimen sample.Keywords: Fluctuation population, fruit flies, Batrocera dorsalis Complex, ChilliABSTRAKLalat buah (Bactrocera spp.) merupakan hama penting yang menyerang tanaman hortikultura baik buah-buahan ataupun sayuran buah. Penelitian ini bertujuan untuk mengetahui korelasi fluktuasi populasi lalat buah pada pertanaman cabai merah terhadap faktor abiotik berupa suhu, curah hujan, jumlah hari hujan dan faktor biotik berupa fenologi tanaman inang dan musuh alami. Percobaan ini dilaksanakan di Desa Pulosari, Kecamatan Pangalengan Kabupaten Bandung. Percobaan dilakukan menggunakan metode survei dengan memasang perangkap lalat buah pada lahan pertanaman cabai merah sebanyak 20 perangkap dengan 10 perangkap bagian luar dan 10 perangkap bagian dalam dengan jarak antar perangkap 10 meter. Hasil tangkapan dikumpulkan dan dihitung populasi lalat buah yang terperangkap setiap minggunya. Hasil penelitian menunjukan faktor abiotik (suhu, curah hujan, jumlah hari hujan) tidak memberikan pengaruh signifikan ditunjukan dengan analisis regresi masing-masing pada suhu ( Y= -101,2+ 2298,7x ; R2=0,253; P > 0,05), Curah hujan (Y= 0,143 + 154,4x ; R2= 0,004 ; P > 0,05), dan Jumlah hari hujan (Y= 6,607 + 140,51x ; R2=0,015 ; P > 0,05) Sedangkan lalat buah yang memiliki populasi paling dominan adalah Bactrocera dorsalis yang termasuk sibling dari spesies Bactrocera dorsalis Kompleks dengan jumlah populasi sebanyak 93% dari sampel spesimen.Kata kunci : Fluktuasi populasi, Lalat buah, Bactrocera dorsalis Kompleks, Cabai merah


2020 ◽  
Vol 2 (1) ◽  
pp. 41-50
Author(s):  
Caroline Muriuki ◽  
◽  
Mary Guantai ◽  
Namikoye Samita ◽  
Joseph Mulwa ◽  
...  

Fruits and vegetables are important source of livelihood to farmers and major horticulture sub sector with high contribution to agricultural GDP in Kenya. This study was conducted to determine diversity and abundance of frugivorous fruit flies in Kandara sub county, Murang’a County in 2018, at a place where first area of low pest population was created in Kenya for Bactrocera dorsalis. Three sets of pheromone traps (Methyl-Eugenol, Cuelure and Trimedlure) were set in six trap stations within farmers’ orchards in four agro-ecological zones (LH1 (Lower Highland Zone), UM1 (Upper Mid-land Zone), UM2, and UM3). The trap catch data was collected fortnightly and data analyzed. Six fruit flies species namely; Bactrocera dorsalis, Ceratitis cosyra, Ceratitis capitata, Zeugodacus cucurbitae, Dacus bivittatus and Perilampsis sp were identified. Bactrocera dorsalis population was significantly (P<.001) different across the four agro-ecologies with lowest densities at LH1 and highest at UM3. Likewise, C. capitata recorded significant (P=0.042) difference densities across the agro-ecological zones, but no significant (P=0.386) difference was recorded for C. cosyra across the agro-ecological zones. Further, there was significant (P=0.012) difference in the number of Perilampsis sp across the agro-ecologies with the highest number recorded in UM1. Both Z. cucurbitae (P=0.061) and D. bivittatus (P=0.056) had low abundance across the agro-ecologies. The peak infestation period differed across the various fruit fly species, whereby B. dorsalis peaked in May, C. capitata in February and C. cosyra in January. The study shows that abundance for the fruit flies is probably related to their preferred hostplant and the weather patterns. We recommend continuous monitoring and intensifying trapping activities during peak periods in order to control the pest and protect fruits from damage. Farmers should be trained on the use of pheromone traps to reduce over-reliance on pesticides. Key words: Agro-ecologies, Bactrocera dorsalis, Ceratitis sp, fruit fly density, Pheromone


2020 ◽  
Vol 20 (1) ◽  
pp. 61-70
Author(s):  
Rahayu Supratiwi ◽  
Rion Apriyadi ◽  
Euis Asriani

Fruit flies (Diptera: Tephritidae) are main pests in fruit and vegetable cultivation. There are 4000 species offruit flies in the world and 35% of them are important pests, including commercial fruits that have high economic value.Merawang District is one of the centers of horticultural production, especially fruits and vegetables. One of the threats to theproduction of horticultural commodities is the attack of fruit flies. The purpose of this study was to determine the diversity,distribution, and types of fruit flies in horticultural crops in Merawang Sub-District, Bangka District. The research wasconducted in descriptive method, in this case, the survey method was also used. The sampling was done in purposivesampling method. In total, 1248 specimen of fruit flies were collected by using different attractant traps and identified. Themethyl eugenol (ME) and cue lure (CUE) attractants trapped 1076 and 172 specimens, respectively. The diversity of fruit fliesin Merawang Sub-District was relatively low, in total 9 species fruit flies were observed and identified as Bactrocera dorsalis(Hendel), B. umbrosa (Fabricius),  B. carambolae (Drew & Hancock), B. occipitalis (Bezzi), Zeugodacus cucurbitae (Coquillett),B. albistrigata (de Meijer), Z. caudata (Fabricius), B. limbifera (Bezzi), and Dacus nanggalae (Drew & Hancock). The speciesdominant observed at the study site were B. dorsalis (Hendel), B. carambolae (Drew & Hancock), and B. occipitalis (Bezzi).Air Anyir Village was the highest number of fruit flies species.


2021 ◽  
Vol 2 (1) ◽  
pp. 79-84
Author(s):  
Simphiwe Mnguni

The fruitfly Bactrocera dorsalis is an economically important pest that requires management for the sustainability of agriculture in South Africa. This pest has spread from the country's Northern parts within a decade, where it has completely established and spread to other neighbouring provinces. The pest spreads at various rates due to different factors given biotic and abiotic factors. Understanding factors that influence pest prevalence will assist with practical management strategies. Temperature is one of the factors that assist the invasive potential of B. dorsalis. KwaZulu Natal province is among the hotspot provinces in the country besides Limpopo and Mpumalanga. Trap catches in Northern KwaZulu Natal, uMkhanyakude and King Cetshwayo districts show that the seasonal populations of B. dorsalis are continuously present all year round, even with the application of management options to reduce pest populations. Host availability plays a significant role in the invasion and total outcompeting of other native fruitflies e.g. Ceratitis punctata.


2021 ◽  
Vol 6 (1) ◽  
pp. 59-70
Author(s):  
Agus Susanto ◽  
Wahyu Daradjat Natawigena ◽  
Luciana Djaya ◽  
Tohidin Tohidin ◽  
Fauza Saputra

Fruit flies (Bactrocera spp.) are an important pest for horticultural crops, especially fruits and vegetables. One of the most effective and eco-friendly methods to control male and female fruit flies is by usingtraps that use Methyl Eugenol (ME) block plus fruit essence as an attractant. The purposes of this research were to acquire the most effective formulation of ME Block plus fruit essence to catch the most male and female fruit flies on the chili plantation and to detremine the increase in total of fruit flies caught. This research started from December 2017 to January 2018 at Cibeureum Village, Sukamantri District, Ciamis Regency, West Java Province. The research was conducted using a randomized block design consisting of 8 treatments and 3 repetitions. The treatments consisted of adding fruit essence to the ME block: 2 ml of ME on cotton; 2 ml of ME block; 2 ml of ME block + 4 ml of mango essence; 2 ml of ME block + 4 ml of orange essence; 2 ml of ME block + 4 ml of guava essence; 2 ml of ME block + 4 ml of star fruit essence; 2 ml of ME block + 4 ml of chili essence; Antilat (Organic pesticide) as a comparison. The results showed that ME block plus fruit essence has increased the total of male fruit flies caught, but it did not attract female fruit flies. The best combinations with the highest average of male fruit flies caught were ME block plus orange essence with 750.67/5 week, followed by ME block plus chili essence with 746.00/5 week


Author(s):  
Uzair Ahmad ◽  
Unab Begum

A study was conducted to find out the efficacy of the lures viz methyl eugenol, raspberry essence and GF-120 in baited fruit fly traps at persimmon orchards in Kohat district, KPK. Three treatments: T1 (Methyl eugenol), T2 (Raspberry essence) and T3 (Gf-120) with nine replications treatment-1 were installed. Results revealed highest population density for fruit flies in T1 (382), following T3 (197.2) while the least population density was revealed in T2 (23.6). Population trend over time showed maximum population density for fruit flies at week 1, following week 2, week 4, week 3 and week 5. The number of fruit flies were observed with highest average number of Bactrocera zonata (700) in T1 (week 1), whereas Bactrocera dorsalis (250) in T1 (week 1), while the minimum average number of 08 in T2 (week 5) and 01 in T2 (week 5) was recorded for B. zonata and B. dorsalis, respectively. Maximum average numbers of males were recorded 950 in T1 (week 1), whereas the minimum average number of males revealed 09 in T2 (week 5). Average population density of fruit flies (gender) revealed 200.93 (male) while it revealed 0.0 for females.


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