Development of a mechanical sexing system to improve the efficacy of an area-wide sterile insect release programme to control American serpentine leafminer (Diptera: Agromyzidae) in Canadian ornamental greenhouses

2017 ◽  
Vol 73 (5) ◽  
pp. 830-837 ◽  
Author(s):  
Maryam Sultan ◽  
Rose Buitenhuis ◽  
Graeme Murphy ◽  
Cynthia D Scott-Dupree
Keyword(s):  
Serpentine Leafminer ◽  
Sterile Insect Release

scholarly journals Study of the sterile insect release technique for a two-sex mosquito population model

2021 ◽  
Vol 18 (2) ◽  
pp. 1314-1339
Author(s):  
Mingzhan Huang ◽  
◽  
Shouzong Liu ◽  
Xinyu Song ◽  
Keyword(s):  
Population Model ◽  
Mosquito Population ◽  
Release Technique ◽  
Sterile Insect Release

The Sterile Insect Release Method and the Importance of Thermal Conditioning Before Release - Field-Cage Experiments With Dacus-Tryoni in Spring Weather

1987 ◽  
Vol 35 (2) ◽  
pp. 197 ◽  
Author(s):  
HAC Fay ◽  
A Meats
Keyword(s):  
Target Population ◽  
Cold Weather ◽  
Large Field ◽  
Field Cage ◽  
Mating Competitiveness ◽  
Rate Of Increase ◽  
Conditioned State ◽  
Males And Females ◽  
Sterile Insect Release ◽  
Release Method

We present a rationale for the strategy of suppressing the fertility and hence the rate of increase of target populations in spring by the release of sterile insects. Insects for mass release are normally reared in warm conditions and are potentially unsuitable for use in cold weather. A comparison was made of the effectiveness of warm- and cold-conditioned sterile flies in experiments in large field-cages during three successive spring seasons. Sterile males and females, and wild males and females were released into the cages in the ratio 2:2:1:1, respectively. Warm-conditioned sterile flies survived poorly between release and mating. Their mating competitiveness was inferior to that of the wild flies, and they were relatively ineffective in reducing their fertility. Sterile flies released in a cold-conditioned state (equal to that of the wild flies), survived as well as wild flies, and suppressed their fertility to an extent which indicates that their mating competitiveness can be equal to that of the wild flies, if the weather is not too severe. The concept of total competitiveness is introduced. If competitiveness is calculated by means of the ratio of sterile to wild flies that exists at release (rather than at mating), the resulting value is a measure of the potential of the sterile flies to survive to mating age, and to mate in competition with the wild flies. This value is especially pertinent to situations such as a puparial release, when there is a delay between release and mating. In such circumstances, it is needed for calculating the required ratio of sterile to wild insects to achieve the desired reduction of fertility (and thus rate of increase) in the target population.

Screening tomato genotypes for resistance to early blight and American serpentine leafminer

2019 ◽  
Vol 60 (3) ◽  
pp. 427-433
Author(s):  
Suresh Reddy Yerasu ◽  
Loganathan Murugan ◽  
Jaydeep Halder ◽  
H. C. Prasanna ◽  
Arpita Singh ◽  
...  
Keyword(s):  
Early Blight ◽  
Serpentine Leafminer ◽  
Tomato Genotypes

Operational mark–release–recapture field tests comparing competitiveness of wild and differentially mass-reared codling moths from the Okanagan–Kootenay sterile insect program

2011 ◽  
Vol 143 (3) ◽  
pp. 300-316 ◽  
Author(s):  
Gary J.R. Judd ◽  
Scott Arthur ◽  
Keith Deglow ◽  
Mark G.T. Gardiner
Keyword(s):  
Field Experiments ◽  
Cydia Pomonella ◽  
Field Tests ◽  
Mass Rearing ◽  
Pheromone Trap ◽  
Research Centre ◽  
Mating Activity ◽  
Food Research ◽  
Mark Release Recapture ◽  
Sterile Insect Release

AbstractPheromone trap catches and mating activity of sterile, mass-reared, diapaused and non-diapaused male codling moths, Cydia pomonella (L.) (Lepidoptera: Tortricidae), were compared with those of wild diapaused males using mark–release–recapture field experiments in springtime. Sterile moths were provided by the Okanagan–Kootenay Sterile Insect Release (SIR) Program mass-rearing facility, in Osoyoos, British Columbia, Canada. Nondiapause-reared (SIR-standard) and diapause-reared (SIR-diapaused) sterile males were recaptured in similar frequencies. Both types of sterile males were recaptured significantly less often than similarly released wild diapaused males, and ratios of recaptured sterile to wild males were similar with either sterile male. Ratios of sterile to wild males, using the combined catches of SIR-standard and SIR-diapaused males, were significantly lower when measured with traps baited with wild-females (21:1) than with traps baited with 10 μg pheromone (48:1). Both trapping ratios were markedly lower than the 80:1 ratio at which sterile and wild males were released. In mating studies, SIR-standard and SIR-diapaused males exhibited equivalent mating frequencies and both were recaptured in copula with tethered wild females significantly less often than released wild males. In the same mating studies, sterile mass-reared, diapaused males that had been chilled for 3 h at the Pacific Agri-Food Research Centre (PARC) before release (PARC-diapaused) were significantly more competitive than SIR-standard or SIR-diapaused males that averaged 24 h of chilling as part of normal SIR Program operations. PARC-diapaused males and released wild males mated with tethered females with equal frequency. We hypothesize that the length of time SIR males were chilled before being released may have caused SIR-diapaused males to be less mobile, and therefore less competitive with wild males in field mating assays, than were PARC-diapaused males. Based on these results, introduction of a diapause phase into the mass-rearing system used at the Osoyoos facility cannot currently be recommended as a means of improving trap-measured ratios of sterile to wild males, or increasing sterile × wild matings.

Spatial heterogeneity of Anastrepha ludens populations over a large citrus region including a sterile insect release area in northeastern Mexico

2016 ◽  
Vol 18 (5) ◽  
pp. 843-858 ◽  
Author(s):  
V. Vanoye-Eligio ◽  
Ludivina Barrientos-Lozano ◽  
A. Mora-Olivo ◽  
G. Sánchez-Ramos ◽  
J. C. Chacón-Hernández
Keyword(s):  
Spatial Heterogeneity ◽  
Anastrepha Ludens ◽  
Release Area ◽  
Northeastern Mexico ◽  
Sterile Insect Release
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