Population control in the Australian sheep blowfly, Lucilia cuprina, by the release of female-borne chemosterilant. II.* Sterilization under field cage conditions

1974 ◽  
Vol 25 (6) ◽  
pp. 1005 ◽  
Author(s):  
GAC Beattie ◽  
FJD McDonald ◽  
MJ Whitten
Keyword(s):  
Population Control ◽  
Oviposition Site ◽  
Lucilia Cuprina ◽  
Large Field ◽  
Field Cage ◽  
Australian Sheep

Females of the Australian sheep blowfly, Lucilia cuprina (Wiedemann), topically treated with the chemosterilant N,N'-hexamethylene-bis(1-aziridinecarboxamide), were liberated into large field cages containing untreated flies to determine if sterilizing doses of chemosterilant were transferred to untreated flies. Full sterility was induced in cages carrying equal numbers of untreated males, untreated females and females treated with 300 or 600 µg of chemosterilant. In other cages, one female treated with 600 µg of chemosterilant for every five untreated flies of each sex had a similar effect but lower levels of sterility were obtained with higher ratios of untreated to treated flies. Transfer of chemosterilant appeared to occur through contact during mating, attempted matings, and between flies of both sexes at the oviposition site. ___________________ *Part I, Aust. J. Agric. Res., 25: 995 (1974).

Population control in the Australian sheep blowfly, Lucilia cuprina, by the release of female-borne chemosterilant. I. Female to male transfer of chemosterilant during mating

1974 ◽  
Vol 25 (6) ◽  
pp. 995 ◽  
Author(s):  
P Smart ◽  
D Gilmour
Keyword(s):  
Population Control ◽  
Lucilia Cuprina ◽  
Male And Female ◽  
Male Transfer ◽  
Australian Sheep

N,N'-tetramethylene-bis-(1-aziridinecarboxamide), applied topically, sterilized male and female Lucilia cuprina (Wiedemann) at a dose of 10 µg per fly. Females tolerated 800 µg per fly. A female 'booby-trapped' with 400 µg of sterilant could transfer a sterilizing dose to a male during copulation. Booby-trapped females were sexually attractive and sterile males were as sexually vigorous as fertile males. The introduction of either booby-trapped females or sterilized males into cage populations caused a greater drop in fertility than expected, but the effect was probably due more to unspecific contact between flies than to mating contacts.

Stem treatments to cotton with systemic insecticides against Heliothis zea (Boddie) and H. virescens (F.)

1968 ◽  
Vol 57 (4) ◽  
pp. 553-558
Author(s):  
R. L. Ridgway ◽  
L. A. Bariola ◽  
S. L. Jones ◽  
W. L. Lowry
Keyword(s):  
Heliothis Zea ◽  
Large Field ◽  
Field Cage ◽  
Systemic Action ◽  
American Cyanamid ◽  
Systemic Insecticides ◽  
Dimethyl Phosphate ◽  
First Instar ◽  
Sucrose Solutions ◽  
Cotton Plants

Laboratory and field-cage studies were conducted in Texas in 1965 to evaluate treatments of the systemic insecticides, Azodrin (3-hydroxy-N-methyl-cis-crotonamide dimethyl phosphate), Bidrin (3-hydroxy-N, N dimethyl-cis-crotonamide dimethyl phosphate), American Cyanamid CL-47031 (cyclic ethylene (diethoxy-phosphinyl) dithioimidocarbonate) and Temik (2-methyl-2-(methylthio) propion-aldehyde O-(methylcarbamoyl) oxime), applied incorporated in lanolin to the stems of cotton plants against Heliothis zea (Boddie) and H. virescens (F.). Reductions in numbers of developing larvae of H. zea were substantial on individual plants the stems of which had been treated with Azodrin or CL-47031 and which were artificially infested with eggs. When first-instar larvae of H. zea or H. virescens were caged on plants 3, 7 or 14 days after stem treatment with 2.5, 5.0 or 100 mg. Azodrin, Bidrin or CL-47031 per plant, net mortalities ranged from 21 to 80 per cent after three days. The mortality of adults of H. zea provided with sucrose solutions containing 1 p.p.m. of the systemic insecticides indicated that Azodrin and Bidrin were about equally toxic and much more so than CL-47031 and Temik, and that of adults caged on individual plants in flower that had been treated with Azodrin or CL-47031 suggested that the moths may be killed by the systemic action of these insecticides translocated to the nectar. When adults of H. virescens were released on plants each treated with Azodrin at 25 or 30 mg. in large field cages, reductions in the numbers of eggs deposited, attributed to the effect on the moths of the insecticide in the nectar, and in the numbers of developing larvae, were substantial. Azodrin was the most consistently effective of the four insecticides evaluated.

scholarly journals Diazinon resistance, fluctuating asymmetry and fitness in the Australian sheep blowfly, lucilia cuprina.

Genetics ◽  
1988 ◽  
Vol 120 (1) ◽  
pp. 213-220 ◽  
Author(s):  
J A McKenzie ◽  
G M Clarke
Keyword(s):  
Fluctuating Asymmetry ◽  
Natural Populations ◽  
Lucilia Cuprina ◽  
Resistance Locus ◽  
Gene Complex ◽  
Subsequent Evolution ◽  
Genetic Analyses ◽  
Evolution Of Resistance ◽  
Australian Sheep ◽  
Chromosome Iii

Abstract Genetic evidence suggests that the evolution of resistance to the insecticide diazinon in Lucilia cuprina initially produced an increase in asymmetry. At that time resistant flies were presumed to be at a selective disadvantage in the absence of diazinon. Subsequent evolution in natural populations selected modifiers to ameliorate these effects. The fitness and fluctuating asymmetry levels of resistant flies are currently similar to those of susceptibles. Previous genetic analyses have shown the fitness modifier to co-segregate with the region of chromosome III marked by the white eyes, w, locus, unlinked to the diazinon resistance locus, Rop-1, on chromosome IV. This study maps the asymmetry modifier to the same region, shows, as in the case of the fitness modifier, its effect to be dominant and presents data consistent with the fitness/asymmetry modifier being the same gene (gene complex). These results suggest changes in fluctuating asymmetry reflect changes in fitness.

scholarly journals Genetic Analysis of Field Trials of Sex-linked Translocation Strains for Genetic Control of the Australian Sheep Blowfly Lucilia cuprina (Wiedemann)

1985 ◽  
Vol 38 (3) ◽  
pp. 275 ◽  
Author(s):  
GG Foster ◽  
WG Vogt ◽  
TL Woodburn
Keyword(s):  
Genetic Analysis ◽  
Genetic Control ◽  
Poor Performance ◽  
Field Trials ◽  
Lucilia Cuprina ◽  
Native Population ◽  
Australian Sheep ◽  
Males And Females ◽  
Progeny Tests ◽  
Release Method

The results of progeny tests of males and females captured during two field trials of sex-linked translocation strains for genetic control of L. cuprina are presented. Males released as mature larvae survived to adulthood and mated with field females. However, the levels of genetic death introduced into the population were insufficient to suppress the native population. This was due partly to seasonal ineffectiveness of the release method, and partly to poor performance of the released males. On average, the mating competitiveness of the released males was only one-third that of field males, whereas their field-reared, translocation-bearing sons were fully competitive with native males.

scholarly journals Volatiles from Merino fleece evoke antennal and behavioural responses in the Australian sheep blow fly Lucilia cuprina

2019 ◽  
Vol 33 (4) ◽  
pp. 491-497
Author(s):  
G. Yan ◽  
S. Liu ◽  
A. C. Schlink ◽  
G. R. Flematti ◽  
B. S. Brodie ◽  
...  
Keyword(s):  
Lucilia Cuprina ◽  
Blow Fly ◽  
Behavioural Responses ◽  
Australian Sheep
Sign in / Sign up

Export Citation Format

Share Document