Mating senescence and male reproductive organ size in the Mexican fruit fly

2016 ◽  
Vol 42 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Martha Reyes-Hernández ◽  
Diana Pérez-Staples
HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 533e-533
Author(s):  
Krista C. Shellie

The objective of this research was to investigate whether the medium used to transfer heat to a commodity influenced the mortality of Mexican fruit fly larvae. A similar 2-h heat dose was delivered to grapefruit via immersion in a variable temperature water bath or via exposure to a rapidly circulating gas. The concentration of oxygen and carbon dioxide inside the grapefruit was analyzed at 30-min intervals and grapefruit center temperatures recorded every 60 s during heating. The mortality of larvae located inside grapefruit during heating in a controlled atmosphere or in hot water was significantly higher than that of larvae located inside grapefruit heated in air. The internal atmosphere of grapefruit heated in a controlled atmosphere or in hot water contained significantly higher levels of carbon dioxide and lower levels of oxygen than grapefruit heated in air. Larval mortality was compared after larvae were heated in media by rapidly circulating air or by an atmosphere containing 4 kPa of oxygen and 18 kPa of carbon dioxide to evaluate whether the altered atmosphere or a heat-induced fruit metabolite was responsible for enhanced mortality. The significantly higher mortality of larvae heated in media in the presence of an altered atmosphere suggested that the altered atmosphere enhanced larval mortality. Results from this research suggest that reducing oxygen and or increasing the level of carbon dioxide during heating can enhance mortality of the Mexican fruit fly and potentially reduce the heat dose required for quarantine security.


2015 ◽  
Vol 108 (4) ◽  
pp. 1637-1645 ◽  
Author(s):  
R. Lasa ◽  
F. Herrera ◽  
E. Miranda ◽  
E. Gómez ◽  
S. Antonio ◽  
...  

EDIS ◽  
1969 ◽  
Vol 2004 (5) ◽  
Author(s):  
Howard V. Weems, Jr. ◽  
John B. Heppner ◽  
Thomas R. Fasulo ◽  
James L. Nation

The Caribbean fruit fly, Anastrepha suspensa (Loew), has also been called the Greater Antilliean fruit fly, the guava fruit fly and the Caribfly. It is a near relative of the Mexican fruit fly, Anastrepha ludens (Loew), and is one of several species of fruit flies which are indigenous to the West Indies and the larvae of which attack several kinds of tropical and subtropical fruits. This document is EENY-196 (originally published as DPI Entomology Circulars 38 and 260), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: March 2001. EENY196/IN353: Caribbean Fruit Fly, Anastrepha suspensa (Loew) (Insecta: Diptera: Tephritidae) (ufl.edu)


2020 ◽  
Vol 111 (1) ◽  
pp. 82-90
Author(s):  
S. Abraham ◽  
V. Díaz ◽  
A. Moyano ◽  
G. Castillo ◽  
J. Rull ◽  
...  

AbstractThe Mediterranean fruit fly Ceratitis capitata is a globally invasive pest, often controlled with the sterile insect technique (SIT). For the SIT, mass-rearing of the target insect followed by irradiation are imperatives. Sterile males are often less able to inhibit female remating and transfer less number of sperm, and even irradiation could affect male reproductive organs, with consequences for their ability to inhibit female remating. On the other hand, male age could affect their ability to modulate female response after mating. Here, we evaluated the quality of the genetic sexing strain Vienna-8-tsl mass-reared in Bioplanta San Juan, Argentina, under laboratory conditions, with regard to: (i) the ability of sterile males irradiated at 100 or 140 Gy to inhibit female remating, in the same day and at 24 h of first copulation; (ii) the ability of 3, 4 or 5 day-old sterile males to inhibit female remating at 24 h of first copulation, and (iii) the effect of a reduction in irradiation doses on the number of sperm stored by females and reproductive organ size in virgin males. Sterile males were better able than wild males to inhibit female remating in the same day of first copulation and as able as wild males 1 day after first copulation. Male age did not affect their ability to inhibit female receptivity. Number of sperm stored by females, testes size and ectodermal accessory glands size were not affected by male identity, while sterile 100 Gy males had larger mesodermal accessory glands than control lab males. A reduction in irradiation dose does not impact any variable measured, except for percentage of sperm-depleted females: females mated with sterile 100 Gy males had lower probabilities to store sperm. The results showed here are very encouraging for tsl Vienna 8 strain reared in Argentina and are discussed in comparison with previous studies in C. capitata female remating with dissimilar results.


2010 ◽  
Vol 64 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Andrew J. F. Edmunds ◽  
Martin Aluja ◽  
Fransico Diaz-Fleischer ◽  
Bruno Patrian ◽  
Leonhard Hagmann

2005 ◽  
Vol 88 (4) ◽  
pp. 364-371 ◽  
Author(s):  
Edi A. Malo ◽  
Leopoldo Cruz-López ◽  
Jorge Toledo ◽  
Alejandro Del Mazo ◽  
Armando Virgen ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document