Field Evaluation of Melolure, a Formate Analogue of Cuelure, and Reassessment of Fruit Fly Species Trapped in Sydney, New South Wales, Australia

2015 ◽  
Vol 108 (3) ◽  
pp. 1176-1181 ◽  
Author(s):  
B. C. Dominiak ◽  
A. J. Campbell ◽  
E. B. Jang ◽  
A. Ramsey ◽  
B. G. Fanson
Keyword(s):  
New South ◽  
New South Wales ◽  
Field Evaluation ◽  
Fruit Fly ◽  
South Wales

Dacus tryoni. [Distribution map].

1960 ◽  
Author(s):  
Keyword(s):  
Geographical Distribution ◽  
New South ◽  
New South Wales ◽  
South Australia ◽  
Fruit Fly ◽  
Distribution Map ◽  
Bactrocera Tryoni ◽  
South Wales ◽  
New Distribution

Abstract A new distribution map is provided for Dacus tryoni[Bactrocera tryoni] (Frogg.) (Dipt., Trypetidae) (Queensland Fruit-fly) Hosts: Many deciduous and subtropical fruits. Information is given on the geographical distribution in AUSTRALIA, New South Wales, Queensland, South Australia, Victoria.

The utilization of parasites of oriental fruit fly (Dacus dorsalis) against Queensland fruit fly (Strumeta tryoni)

1962 ◽  
Vol 13 (3) ◽  
pp. 443 ◽  
Author(s):  
GJ Snowball ◽  
F Wilson ◽  
TG Campbell ◽  
RG Lukins
Keyword(s):  
Western Australia ◽  
New South ◽  
New South Wales ◽  
Fruit Fly ◽  
Distribution Area ◽  
Oriental Fruit Fly ◽  
Dacus Dorsalis ◽  
Lord Howe Island ◽  
South Wales ◽  
Fruit Samples

In 1950, a programme was initiated to utilize against the Queensland fruit fly (Strumeta tryoni) parasites which were introduced during 1948–1950 into Hawaii, where they produced a considerable reduction in the incidence of oriental fruit fly (Dacus dorsalis). The present paper describes the work carried out under this programme up to October 1959. During 1951–1957 the emphasis was on rearing, at Sydney, on Queensland fruit fly, stocks of Opius longicaudatus and O. oophilus from small stocks imported from Hawaii. It was found that O. oophilus, O. vandenboschi, and O. longicaudatus could parasitize Queensland fruit fly in the laboratory, and that O. longicaudatus could parasitize the Solanum fruit fly, Strumeta cacuminata, which occurs widely in the distribution area of the Queensland fruit fly and hence might act as a valuable alternative host for the parasites. Liberations were made at Coffs Harbour and Sydney in New South Wales in 1956–1957 of 21 000 O. longicaudatus and 1 700 O. oophilus, but establishment was apparently not achieved. The programme was changed in 1957 to provide for larger releases over n much wider area. In view of production difficulties at Sydney, a field station was set up in Hawaii to rear parasites, which were shipped to Australia by air, checked in quarantine at Sydney, and despatched to various parts of Australia for liberation. Between March 1958 and October 1959 the following numbers of foreign parasites were liberated: O. oophilus, 229 200; O. vandenboschi, 28 100; O. longicaudatus and closely related species, 198 700; O. incisi, 27 100; Dirhinus giffardii, 2 500; Tetrastichus giffardianus, 2 500; and Syntomosphyrum indicum, 3 200. The liberations in 1958–1959 were made at 25 locations in New South Wales, 59 in Queensland, 12 in Western Australia, and 6 on Lord Howe Island. The liberations were made in the presence of populations of Queensland fruit fly in New South Wales, Queensland, and on Lord Howe Island, and of Mediterranean fruit fly (Ceratitis capitata) in Western Australia. Data from a total of 185 fruit samples taken between January and August 1959 in New South Wales and Queensland indicate that O. oophilus was possibly established in five localities in New South Wales and two in Queensland, and that some field breeding had occurred of O. vandenboschi and O. longicaudatus in New South Wales. There were no recoveries indicating field breeding of the three species in central or north Queensland. The indications of establishment of O. oophilus are tentative because the relevant samples were taken before the parasite populations had been subjected to winter conditions. There were no recoveries of O. incisi, S. indicum, or T. giffardianus.

Development of a low-cost pupal release strategy for Sterile Insect Technique (SIT) with Queensland fruit fly and assessment of climatic constraints for SIT in rural New South Wales

2000 ◽  
Vol 40 (7) ◽  
pp. 1021 ◽  
Author(s):  
B. C. Dominiak ◽  
L. J. McLeod ◽  
R. Landon ◽  
H. I. Nicol
Keyword(s):  
New South ◽  
Low Cost ◽  
New South Wales ◽  
Adult Emergence ◽  
Fruit Fly ◽  
Rural Environment ◽  
Ant Predation ◽  
South Wales ◽  
Moisture Deficit ◽  
Release Strategy

Sterile pupae of Queensland fruit fly (Qfly) Bactrocera tryoni (Froggatt) were released to suppress wild Qfly populations at 3 sites in New South Wales and to assess a pupal release strategy using the bed technique. Sterile pupae were released from September 1997 to June 1998 from sand and vermiculite beds. A total of 24.6 million pupae were released with a male recapture rate of 0.101% (not corrected for adult emergence rate). Adult emergence rates were 25% at Tullibigeal; 39% at Ungarie and 46, 41, 71 and 54% respectively at 4 locations at Lake Cargelligo (mean 46%). Corrected recapture rates using cue-lure traps were 0.88% at Tullibigeal, 0.08% at Ungarie and 0.15% at Lake Cargelligo (mean 0.21%). When wild fly populations increased at Lake Cargelligo, a bait spraying program was used which substaintially reduced the catches of both sterile and wild flies in traps. Analyses using the CLIMEX model showed that the climate at Lake Cargelligo town (with irrigation) was suitable for fruit flies. CLIMEX indicated that the unmodified rural environment was unsuitable for fruit fly survival due to a summer moisture deficit. The Meats daily survival rate decrement of 58–72% was similar to that found for some similar studies in Australia but lower than for certain other release programs. No significant bird or ant predation was observed.

Status of introduced parasites of Queensland fruit fly (Strumeta tryoni), 1960–1962

1964 ◽  
Vol 15 (4) ◽  
pp. 586 ◽  
Author(s):  
GJ Snowball ◽  
RG Lukins
Keyword(s):  
Climatic Factors ◽  
New South ◽  
New South Wales ◽  
Fruit Fly ◽  
Climatic Conditions ◽  
Averrhoa Carambola ◽  
The North ◽  
Lord Howe Island ◽  
South Wales ◽  
Eastern Australia

The paper describes fruit sampling carried out in eastern Australia during January 1960–March 1962 to assess the status of parasites of the oriental fruit fly (Dacus dorsalis) liberated in Australia during 1956–1959 against the Queensland fruit fly (Strumeta tryoni). Opius oophilus was the only introduced parasite extant on the mainland in 1962, parasitizing up to 78% of the host fly stages in Averrhoa carambola in north Queensland and 0–35% in other fruit types. O. oophilus was well established in north Queensland at five localities near Cairns and two near Innisfail, and less well established at three localities near the Queensland–New South Wales border. It had died out during 1960 from two localities further south in New South Wales in which it had been well established since late 1958. O. oophilus was present on Lord Howe Island from October 1959 to March 1961 but died out subsequently. O. longicaudatus was extant in low numbers on the island in 1962. Under Australian conditions Opius oophilus mated satisfactorily. The parasite was able to utilize as hosts fruit flies of the following species: Strumeta barringtoniae, S. cacuminata, S. humeralis, S. tryoni, and possibly Afrodacus jarvisi and S. kraussi, but preferences could not be measured with available techniques. Although it was reared from a total of 14 types of fruits, O. oophilus displayed marked discrimination between fruits, but the preferences varied with season and locality. The most consistent preference was for Averrhoa carambola in north Queensland. O. oophilus showed no preference for operating in the more highly infested fruits of any of the six fruit types tested. The maximum dispersal recorded of a population of O. oophilus from a liberation site was 5 miles, 46 months after establishment. A review of climatic factors indicated that winter temperatures of 60°F or less were unfavourable to the persistence of O. oophilus. The presence of O. oophilus was not associated with a reduction in the degree of infestation of fruits. It is suggested that this is contributed to in the north, where climatic conditions for the parasites are favourable, ,by the presence of abundant fruits which are infested by Dacinae but not favoured by the parasite.

The use of sterile males to control populations of Queensland fruit fly Dracus tryoni (Frogg) (Diptera : Tephritidae) II. Field experiments in New South Wales

1967 ◽  
Vol 15 (3) ◽  
pp. 475 ◽  
Author(s):  
H.G. Andrewartha ◽  
J Monro ◽  
NL Richardson
Keyword(s):  
Field Experiments ◽  
New South ◽  
New South Wales ◽  
Previous History ◽  
Fruit Fly ◽  
Field Trials ◽  
Southeastern Australia ◽  
South Wales ◽  
Summer Fruit ◽  
The Town

In the field trials of sterile males against the Queensland fruit fly, Dacus tryoni, irradiated pupae of this species were distributed in three towns of western New South Wales in the period September 1962 to March 1965. All these towns and a number of others which served as controls had a previous history of heavy infestation by Dacus tryoni. The success of this method was estimated by comparing the rate of infestation of ripe fruit in treated and untreated towns. The first sign of success came in Manilla in spring (October) 1963 when 51.0% of the eggs deposited in loquats were estimated to be infertile compared with 6.7% in three control towns. However, our production of pupae at this stage was too low to maintain control in Manilla in the summers of 1962-63 and 1963-64. From late April 1963 to late March 1964 most of our production was released in the town of Warren. With a total release in this period of 5.7 x 106 pupae we achieved infestation rates of 2-8% in the summer fruit between early December 1963 and late March 1964, compared with infestation rates of 8-75% in three control towns during the same period. Towards the end of March 1964 the infestation rates began to rise in Warren apparently owing to the immigration of inseminated females along the Macquarie River. An infestation rate of 20% was reached in Warren in April 1964. Between early December 1964 and late March 1965 the rates of infestation in Warren were even more depressed, reaching values of 0 - 7.5% compared with 10-57% in the new control town of Baradine. The total number of pupae released within the town between August 1964 and March 1965 was 12.57 x l06. However, immigrants again brought the infestation up to 10% in April 1965 even though an additional 2.67 x l06 pupae had been distributed along the river for 6 km on either side of the town. In the same period (summer 1964-65) Dacus tryoni was eradicated from Trangie where its numbers had been brought down by trapping out the males with a male lure (Bateman 1966). No infestation was found from October 1964 to April 1965 after the release of 5.33 x l06 pupae between late August 1964 and late March 1965. The rate of infestation in the control town of Gilgandra which had also been treated with cue-lure in the previous summer rose from 0% on October 21, 1964 to 16.2% by April 23,1965. The method could be used to suppress incipient outbreaks of Dacus tryoni in southeastern Australia and even for the eradication of established populations where these are isolated and can be brought low by other means.

Population suppression in the Queensland fruit fly, Dacus (Strumeta) Tryoni. II. Experiments on isolated populations in Western New South Wales

1966 ◽  
Vol 17 (5) ◽  
pp. 699 ◽  
Author(s):  
MA Bateman ◽  
AH Friend ◽  
F Hampshire
Keyword(s):  
Large Scale ◽  
New South ◽  
Combined Treatment ◽  
New South Wales ◽  
Fruit Fly ◽  
Isolated Populations ◽  
South Wales ◽  
Complete Discussion ◽  
Excellent Control ◽  
Scale Control

This is the second paper in a series describing experiments designed to investigate the potential usefulness of chemical lures for the suppression of isolated populations of the Queensland fruit fly. The experiments reported here were done in two consecutive years and involved 12 country towns in central and north-central New South Wales. Three of the towns were treated with a male-attractant plus an insecticide; three were treated with a general lure plus an insecticide; three others received a combination of both treatments; and the remaining three were left untreated for comparison. In the first year neither single treatment had any significant effects on the populations, while the double treatment achieved an acceptable level of control. In the second year the performances of both single treatments improved greatly, while the combined treatment gave excellent control. It is shown that isolated populations of fruit fly can be suppressed by these means.The implications of these results for future large-scale control of the Queensland fruit fly are discussed briefly. More complete discussion must await publication of further developments of this work, which will be reported in later papers in this series.

Temperature-Regulated Changes in the Ovaries of Overwintering Females of the Queensland Fruit Fly, Dacus Tryoni.

1975 ◽  
Vol 23 (1) ◽  
pp. 91 ◽  
Author(s):  
BS Fletcher
Keyword(s):  
Ovarian Development ◽  
New South ◽  
New South Wales ◽  
Fruit Fly ◽  
Ovarian Maturation ◽  
Developmental Threshold ◽  
South Wales ◽  
The Mean ◽  
Central Eastern

Changes in the ovaries of overwintering D. tryoni females at two localities in central eastern New South Wales were studied during 1969 and 1970. In the ovaries of females from both locations, new follicles were differentiated throughout the winter months but most of them were later resorbed. By the end of the winter most females had at least two and some as many as four resorbed follicles per ovariole. The most advanced follicle in the ovariole was resorbed first, except in ovarioles where mature eggs were present, when the penultimate follicle was the first to be resorbed. In a high proportion of the mated parous females the sperm disappeared from the spermathecae when all the viable mature eggs had been laid. Comparison between the changes in the median stages of ovarian development and the tempera- ture data for the same period indicated that it was the mean number of day-degrees above the developmental threshold (13.5�C) experienced by the females which determined whether the ovaries continued to mature or not. Ovarian maturation continued while the mean number of day-degrees stayed above 1.6 and resorption occurred when it dropped below this. However, when the mean number of day-degrees dropped much below unity the ovaries showed very little change either way. The possible causes of ovarian resorption during the winter months and its possible significance for the survival of the flies is discussed.

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