Automatic Information Systems to Process Data from Field Operations in Fruit Fly Control Programs

Fruit Flies ◽  
1993 ◽  
pp. 319-322
Author(s):  
M. A. Jimeno ◽  
J. Reyes ◽  
W. Enkerlin ◽  
J. F. Sanchez ◽  
A. Villaseñor
Keyword(s):  
Information Systems ◽  
Fruit Fly ◽  
Process Data ◽  
Control Programs ◽  
Automatic Information ◽  
Fly Control

Guava (Psidium guajava L.) Fruit Coating with Gum – Arabic for Quality and Fruit Fly Control

1970 ◽  
pp. 01-04
Author(s):  
Esameldin B. M. Kabbashi, Ghada H. Abdelrahman and Nawal A. Abdlerahman
Keyword(s):  
Shelf Life ◽  
Gum Arabic ◽  
Fruit Fly ◽  
Psidium Guajava ◽  
Postharvest Quality ◽  
Guava Fruit ◽  
Fruit Shelf Life ◽  
Fly Control ◽  
And Control ◽  
Subtropical Fruit

Guava (Psidium guajava L.) is a lovely tropical and subtropical fruit that originates in Mexico, Central America, and then taken to other distant and near parts around the world. In Sudan this popular fruit is produced in orchards and household and is so profitable but yet attacked by a lot of fruit fly species of the Genera Ceratitis and Bactrocera and the result is a loss of more than 70%. This research aimed at evaluating the effect of Gum Arabic coating (GAC) in extending the shelf life of guava fruit and disinfesting it from these notorious pests. Guava fruits from Kadaro orchards, Khartoum North, were tested using seven concentrations of Gum Arabic solutions. The results reflect that 1: 4 (25%) and 1: 8 (12.5%) (GA: water) concentrations attained 56 and 40% disinfestation, respectively whereas the other lower concentrations effected corresponding results in a range from 20 – 08%. The reduction in maggots per test fruit reached upto 188% as compared to the control.  The highest concentrations (1: 4 & 1: 8) effected a sustainability of 52% in fruit firmness (FF) with an average of medium (3) FF compared to soft FF (4) in the control. The corresponding results in other lower concentrations (1: 16; 1: 32; 1: 64; 1: 72 & 1: 96) were 36, 24, 24, 20 and 16%, respectively. In addition to an average FF of 4 (soft) for all these concentrations and 5 (very soft) for all the corresponding controls. Nevertheless, the sustainability of fruit color (FC) effected by the test concentrations was 52, 44, 24, 22, 24, 20, and 24%, respectively. Regarding these results, the two highest test concentrations effected a sizeable disinfestation and control of fruit flies and a good extension of shelf life of guava in Khartoum State. These findings support using this treatment as an effective IPM tool to extend guava fruit shelf life and upgrading its postharvest quality.

scholarly journals Establishing criteria for the management of tephritid fruit fly outbreaks

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Michael D. Ormsby
Keyword(s):  
Cost Benefit ◽  
Fruit Fly ◽  
Economic Benefits ◽  
Fruit Flies ◽  
International Standards ◽  
Trade Restrictions ◽  
Export Restriction ◽  
Fly Control ◽  
Financial Impacts ◽  
Tephritid Fruit Flies

AbstractTephritid fruit flies (Diptera; Tephritidae) represent a group of insects that include some of the most economically important pests in horticulture. Because of their economic importance, the financial impacts of an incursion of tephritid fruit flies into a new area can often result in restrictions to trade. The economic impacts of any trade restrictions imposed by importing countries are confounded by the current absence of consistent and accepted criteria for the strength and extent of any trade restrictions and declaring the end of an incursion. The author has developed models that can be used to establish criteria for the management of tephritid fruit fly outbreaks as outlined in international standards. A model enables criteria on when to recognise an incursion has occurred and establish export restrictions. Another model determines what area or radius an export restriction zone (ERZ) should cover. And a third model establishes criteria for the conditions required to enable an ERZ to be rescinded and the area’s pest free status reinstated. The models rely primarily on fruit fly biology and the effectiveness of surveillance trapping systems. The adoption of these proposed criteria internationally for establishing a control system and responding to fruit fly outbreaks would provide considerable economic benefits to international trade. Additionally, these criteria would enable countries to make more informed cost–benefit decisions on the level of investment in fruit fly control systems that better reflects the economic risks fruit flies represent to their economy.

scholarly journals Parental RNAi Silencing of the transformer-2 Gene in a Species of the Anastrepha fraterculus Complex of Cryptic Species (Diptera, Tephritidae)

2021 ◽  
Vol 13 (10) ◽  
pp. 70
Author(s):  
Pietro E. Vicari ◽  
Esther S. Chang ◽  
André L. P. Perondini ◽  
Denise Selivon
Keyword(s):  
Mating Behavior ◽  
Self Regulation ◽  
Fruit Fly ◽  
Regulatory Function ◽  
Rnai Silencing ◽  
Sustainable Technologies ◽  
Xx Males ◽  
Fly Control ◽  
Tephritid Fruit Flies

In genera Anastrepha, Bactrocera and Ceratitis of the tephritid fruit flies the auto-regulatory function of gene transformer is assumed to be activated by maternal derived mRNA or the proteins of the gene transformer (tra-2 mat) and transformer-2 (tra-2mat). However, this maternal effect was not yet been demonstrated. The objective of the present study was to test the effect of absence of tra-2mat in the eggs on the sex determination of A. sp.1 affinis fraterculus. This was achieved by silencing gene tra-2 in the parental females via the pRNA interference. The data showed that tra-2 was transiently silenced in the female for three weeks period. The progenies sex ratio produced by these females during the silencing of tra-2 depart from 1:1 in favor of males. The excess of males was due to the transformation of a fraction of genotypical female XX embryos into XX males, the so-called pseudomales, Individual F1 males from the offspring of treated females crossed to females from the stock, revealed that majority of them showed regular mating behavior and were fertile. However, no offspring was produced in the crosses by a fraction of males that have produced sperms, showed regular mating behavior but did not transfer sperms to the females. The data allow the conclusion that the absence of tra-2mat in the eggs had impaired the self-regulation of the embryonic gene tra resulting in the transformation of XX embryos into pseudomales and also that these pseudomales are sterile. This effect may be useful improve more sustainable technologies for fruit fly control such as SIT.

scholarly journals KEBIJAKAN PENYELENGGARAAN PENDIDIKAN TINGGI (Studi Tentang Peran Sistem Informasi Akademik Dalam Penyelenggaran Pendidikan Tinggi Di STKIP PGRI Bangkalan)

2018 ◽  
Vol 16 (1) ◽  
pp. 16
Author(s):  
Agoeng Koerniawan SA
Keyword(s):  
Higher Education ◽  
Information System ◽  
Information Systems ◽  
Teaching And Learning ◽  
Process Data ◽  
Quality Of Higher Education ◽  
Before And After ◽  
Academic Information

The purpose of this study was to determine the role of academic information systems in improving the quality of higher education implementation in PGRI STKIP Bangkalan, and the extent to which the policies of implementing higher education before and after the use of information systems and how satisfaction is felt by students towards academic information systems at STKIP PGRI Bangkalan, named STKIP PGRI Bangkalan’s Siakad.The study was conducted by conducting a survey of users of the internet-based academic information system (Siakad STKIP PGRI Bangkalan), namely lecturers, students and employees with the method of observation and conducting in-depth interviews to obtain as much information as possible from all respondents/informants. The number of informants was 5 people consisting of the chairman of STKIP PGRI Bangkalan, Vice Chairman I, Head of BAAK and two students who had experience in their respective fields of work, knew deeply and had many roles in the process of using information systems.Based on the results of the study, it was shown that with the use of the information system/ STKIP PGRI Bangkalan’s Siakad which is one of the facilities for the smooth activities of the teaching and learning process, it proved to provide convenience, many benefits and benefits that greatly support the duties of serving lecturers, students and outsiders requiring. This is evidenced by the support of the support of lecturers and students, capacity, namely the ability of employees to process data and value, namely the benefits felt by lecturers, employees and students as well as outside parties in need.

scholarly journals Biological Control of Tephritid Fruit Flies in the Americas and Hawaii: A Review of the Use of Parasitoids and Predators

Insects ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 662
Author(s):  
Flávio R. M. Garcia ◽  
Sérgio M. Ovruski ◽  
Lorena Suárez ◽  
Jorge Cancino ◽  
Oscar E. Liburd
Keyword(s):  
Biological Control ◽  
Fruit Fly ◽  
Fruit Flies ◽  
Economic Importance ◽  
Parasitoid Species ◽  
Control Programs ◽  
First Time ◽  
Tephritid Fruit Flies

Biological control has been the most commonly researched control tactic within fruit fly management programs. For the first time, a review is carried out covering parasitoids and predators of fruit flies (Tephritidae) from the Americas and Hawaii, presenting the main biological control programs in this region. In this work, 31 species of fruit flies of economic importance are considered in the genera Anastrepha (11), Rhagoletis (14), Bactrocera (4), Ceratitis (1), and Zeugodacus (1). In this study, a total of 79 parasitoid species of fruit flies of economic importance are listed and, from these, 50 are native and 29 are introduced. A total of 56 species of fruit fly predators occur in the Americas and Hawaii.

Predicting nuisance fly outbreaks on cattle feedlots in subtropical Australia

2018 ◽  
Vol 58 (2) ◽  
pp. 343 ◽  
Author(s):  
R. M. Godwin ◽  
D. G. Mayer ◽  
G. W. Brown ◽  
D. M. Leemon ◽  
P. J. James
Keyword(s):  
Population Dynamics ◽  
Musca Domestica ◽  
Integrated Control ◽  
Control Measures ◽  
Stable Fly ◽  
Control Programs ◽  
Time Of Year ◽  
Increasing Temperature ◽  
Fly Control ◽  
Cattle Feedlots

Flies are important arthropod pests in intensive animal facilities such as cattle feedlots, with the potential to cause production loss, transmit disease and cause nuisance to surrounding communities. In the present study, seasonal population dynamics of three important nuisance flies, namely house flies (Musca domestica L.), bush flies (M. vetustissima Walker) and stable flies (Stomoxys calcitrans L.) (Diptera: Muscidae), were monitored on cattle feedlots in south-eastern Queensland, Australia, over 7 years. Musca domestica was by far the dominant species, comprising 67% of the total flies trapped. Models were developed to assess the relationship between weather parameters and fly abundance and to determine whether population trends could be predicted to improve the timing of control measures. For all three species, there were two main effects, namely time-of-year (mainly reflected by minimum temperatures and solar radiation) and rainfall. The abundance of all three species increased with increasing temperature and rainfall, reaching a peak in summer, before decreasing again. Rainfall events resulted in significantly elevated numbers of M. domestica for up to 5 weeks, and for 1 week for M. vetustissima. Peak fly numbers were predicted by the model to occur in spring and summer, following 85–90-mm weekly rainfall. The population dynamics of S. calcitrans were least influenced by rainfall and it was concluded that weather variables were of limited use for forecasting stable fly numbers in this environment and production system. The models provide a useful tool for optimising the timing of fly-control measures, such as insecticide or biopesticide applications, adding to the efficiency of integrated control programs.

A Central American Program for Fruit Fly Control

Fruit Flies ◽  
1993 ◽  
pp. 449-454 ◽  
Author(s):  
F. Hentze ◽  
R. Mata ◽  
N. Urbina
Keyword(s):  
Fruit Fly ◽  
Central American ◽  
Fly Control

FIELD EVALUATION OF THE PHOTOTOXIN, ALPHA-TERTHIENYL, FOR REDUCING LARVAL POPULATIONS OF BLACK FLIES (DIPTERA: SIMULIIDAE) AND ITS IMPACT ON DRIFT OF AQUATIC INVERTEBRATES

1991 ◽  
Vol 123 (3) ◽  
pp. 439-449 ◽  
Author(s):  
L.M. Dosdall ◽  
M.M. Galloway ◽  
J.T. Arnason ◽  
P. Morand
Keyword(s):  
Aquatic Invertebrates ◽  
Sampling Site ◽  
Field Evaluation ◽  
Post Treatment ◽  
Invertebrate Drift ◽  
Black Flies ◽  
Black Fly ◽  
Control Programs ◽  
Pre Treatment ◽  
Fly Control

AbstractThe efficacy of alpha-terthienyl (α-T) for reducing larval populations of black flies was determined in two streams in southeastern Ontario. By 24 h post-treatment, larval black fly population reductions greater than 90% resulted from exposure to calculated dosages of 0.04 and 0.10 mg-L−1 α-T emulsifiable concentrate over distances of 1.0 and 1.5 km, respectively. Significant population reductions were not observed 2.3 km downstream from injection of the 0.10 mg·L−1 dosage, probably because a marshy area upstream from this sampling site slowed the transport and enhanced photodegradation of α-T. Alpha-terthienyl initiated catastrophic drift of benthic invertebrates that was not selective for any functional feeding group. Significant increases in post-treatment drift, relative to pre-treatment densities, were observed downstream from treatment for eight of 10 taxa studied and included filter-feeders, grazers, and predators. Upstream from treatment, significant increases between sampling days were observed for only two taxa. The catastrophic and nonselective impact of α-T on invertebrate drift preclude its usefulness as an alternative to black fly larvicides used currently, although specialized applications for α-T may exist in integrated black fly control programs.

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