scholarly journals Adult emergence percentage from irradiated fruit flies, Bactrocera zonata and Bactrocera cucurbitae pupae

2015 ◽  
Vol 7 (3) ◽  
pp. 26-29
Author(s):  
NAVEED MUHAMMAD ◽  
JALAL ARIF MUHAMMAD ◽  
AHMAD NAZIR
Keyword(s):  
Adult Emergence ◽  
Fruit Flies ◽  
Bactrocera Cucurbitae ◽  
Bactrocera Zonata ◽  
Emergence Percentage

scholarly journals Evaluation of Locally Isolated Entomopathogenic Fungi against Multiple Life Stages of Bactrocera zonata and Bactrocera dorsalis (Diptera: Tephritidae): Laboratory and Field Study

2021 ◽  
Vol 9 (8) ◽  
pp. 1791
Author(s):  
Muhammad Usman ◽  
Waqas Wakil ◽  
Jaime C. Piñero ◽  
Shaohui Wu ◽  
Michael D. Toews ◽  
...  
Keyword(s):  
Entomopathogenic Fungi ◽  
Larval Mortality ◽  
Horizontal Transmission ◽  
Adult Emergence ◽  
Fruit Flies ◽  
Bactrocera Dorsalis ◽  
Life Stages ◽  
Field Cage ◽  
Lethal Effects ◽  
Bactrocera Zonata

Fruit flies including Bactrocera zonata and B. dorsalis (Diptera: Tephritidae) are considered major pests of orchard systems in Pakistan. This study evaluated the laboratory virulence, sub-lethal effects, horizontal transmission, greenhouse, and field-cage efficacy of locally isolated entomopathogenic fungi (EPF) against B. zonata and B. dorsalis. In virulence assays against third instars and adults, all 21 EPF isolates (Beauveria bassiana and Metarhizium anisopliae) tested were pathogenic and caused varying levels of mortality to the fruit flies. Based on the initial screening, four isolates (B. bassiana WG-21 and WG-18 and M. anisopliae WG-07 and WG-02) were selected for further study. The isolate WG-18 was the most virulent against larvae and adults of B. zonata and B. dorsalis followed by WG-21, WG-02, and WG-07. In both species, adults were more susceptible than larvae to all isolates, and pupae were the least susceptible. Isolates WG-18 and WG-21 strongly decreased female fecundity and fertility, the highest adult and larval mortality, and longest developmental time of larvae and pupae. Fungal conidia were disseminated passively from infected to healthy adults and induced significant mortality, particularly from infected males to non-infected females. In greenhouse and field-cage experiments, WG-18 and WG-21 were the most effective isolates in reducing adult emergence when applied to larvae and pupae of both fruit fly species. Our results indicate that B. bassiana isolates WG-18 and WG-21 were the most virulent against multiple life stages of B. zonata and B. dorsalis, and also exerted the strongest sub-lethal effects.

Diversity of the cultivable gut bacterial communities associated with the fruit flies Bactrocera dorsalis and Bactrocera cucurbitae (Diptera: Tephritidae)

2017 ◽  
Vol 45 (4) ◽  
pp. 453-460 ◽  
Author(s):  
Nagalakshmi R. Gujjar ◽  
Selvakumar Govindan ◽  
Abraham Verghese ◽  
Sudhagar Subramaniam ◽  
Ravi More
Keyword(s):  
Bacterial Communities ◽  
Fruit Flies ◽  
Bactrocera Dorsalis ◽  
Bactrocera Cucurbitae

Field response of three Tephritid fruit flies to three food-based attractants and suppression of Bactrocera zonata (Saunders) using Mazoferm–Spinosad in guava ecosystem in Sudan

2021 ◽  
Author(s):  
Mohammed E. E. Mahmoud ◽  
Mohammed ◽  
Fathya M. Khamis and ◽  
Sunday Ekesi ◽  
Keyword(s):  
Fruits And Vegetables ◽  
Fruit Flies ◽  
Bactrocera Dorsalis ◽  
Economic Losses ◽  
Horticultural Crops ◽  
Torula Yeast ◽  
Bactrocera Zonata ◽  
Male Annihilation ◽  
Environmentally Friendly Approach ◽  
Tephritid Fruit Flies

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.

scholarly journals Effect of gamma radiation on the male sterility and other quality parameters of peach fruit fly, Bactrocera zonata (Saunders) (Diptera: Tephritidae)

2011 ◽  
Vol 38 (No. 2) ◽  
pp. 54-62 ◽  
Author(s):  
M.F. Mahmoud ◽  
M. Barta
Keyword(s):  
Sterile Insect Technique ◽  
Adult Emergence ◽  
Fruit Fly ◽  
Considerable Effect ◽  
Quality Parameters ◽  
Female Fecundity ◽  
European Continent ◽  
Air Atmosphere ◽  
Bactrocera Zonata ◽  
Insignificant Difference

Bactrocera zonata, a serious pest of fruits in many parts of the world, has recently been recorded in Northern Africa. Even though it has not been introduced to the European continent yet, a strong emphasis is being placed on developing effective measures to suppress this pest and to prevent it from establishing in neighbouring European countries. The sterile insect technique is widely used in integrated programmes against tephritid fruit flies and, in this paper, quality parameters of irradiated B. zonata were evaluated for possible use of sterile insect technique within the management of this pest. Pupae were irradiated (60Co) 48 h before adult emergence (in an air atmosphere) with doses of 10, 30, 50, 70 or 90 Gy. While adult emergence and egg hatch decreased with increasing dose, no significant differences in female fecundity were found among doses. Exposure of pupae to 90 Gy resulted in a total sterility of eggs laid by non-treated females crossed with treated males. Only insignificant difference in the radiation effect on female fecundity was found. Moderate effects on sex ratio and size were recorded, as they decreased gradually by increasing doses. No considerable effect on flying capability was observed, but generally, the percentage of fliers decreased with increasing radiation doses. Fried's competitiveness values of treated males (30 and 70 Gy) suggest that irradiated males compete successfully with non-irradiated ones.

scholarly journals CLOVE OIL AS A SOURCE OF ATTRACTANT PHEROMONES TO THE FRUIT FLIES , Ceratits capitata (WIEDEMANN) AND Bactrocera zonata (SAUNDERS) (DIPETRA :TEPHRITIDAE)

2012 ◽  
Vol 3 (12) ◽  
pp. 1377-1385
Author(s):  
S. Moustafa ◽  
Samar Nabih ◽  
I. Kenawy ◽  
M. Abou-Elzahab ◽  
M. Abdel-Mogib
Keyword(s):  
Fruit Flies ◽  
Clove Oil ◽  
Bactrocera Zonata
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