scholarly journals Biological control of the leafminer Liriomyza bryoniae by seasonal inoculative releases of Diglyphus isaea: simulation of a parasitoid-host system

1992 ◽  
Vol 98 (3) ◽  
pp. 203-212 ◽  
Author(s):  
W. J. Boot ◽  
O. P. J. M. Minkenberg ◽  
R. Rabbinge ◽  
G. H. Moed
2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Lloyd W. Morrison

Pseudacteonparasitoids are potential biocontrol agents of invasiveSolenopsisfire ants.Pseudacteonspecies that parasitize the invasiveS. invictaBuren andS. richteriForel have been introduced to, and naturally dispersed across, the southeastern USA, although there is no evidence yet thatSolenopsishost ant populations have decreased. The ability of introducedPseudacteonspecies to regulateSolenopsispopulations will depend upon the relative importance of top-down effects in the recipient communities. In this paper, I examine the characteristics of thePseudacteon/Solenopsisparasitoid/host system and evaluate the extent to which research findings are consistent with top-down control. Laboratory and field experiments evaluatingSolenopsispopulation regulation have been equivocal, and overall the available evidence provides little support for strong top-down effects in this system. Competitive exclusion may occur among introducedPseudacteonspecies, and future efforts at biological control are likely to be more efficacious if they focus on other types of natural enemies.


Author(s):  
J. R. Adams ◽  
G. J Tompkins ◽  
A. M. Heimpel ◽  
E. Dougherty

As part of a continual search for potential pathogens of insects for use in biological control or on an integrated pest management program, two bacilliform virus-like particles (VLP) of similar morphology have been found in the Mexican bean beetle Epilachna varivestis Mulsant and the house cricket, Acheta domesticus (L. ).Tissues of diseased larvae and adults of E. varivestis and all developmental stages of A. domesticus were fixed according to procedures previously described. While the bean beetles displayed no external symptoms, the diseased crickets displayed a twitching and shaking of the metathoracic legs and a lowered rate of activity.Examinations of larvae and adult Mexican bean beetles collected in the field in 1976 and 1977 in Maryland and field collected specimens brought into the lab in the fall and reared through several generations revealed that specimens from each collection contained vesicles in the cytoplasm of the midgut filled with hundreds of these VLP's which were enveloped and measured approximately 16-25 nm x 55-110 nm, the shorter VLP's generally having the greater width (Fig. 1).


2007 ◽  
Author(s):  
Andrew E. Monroe ◽  
Corinne Zimmerman

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
James P. Cuda ◽  
Patricia Prade ◽  
Carey R. Minteer-Killian

In the late 1970s, Brazilian peppertree, Schinus terebinthifolia Raddi (Sapindales: Anacardiaceae), was targeted for classical biological control in Florida because its invasive properties (see Host Plants) are consistent with escape from natural enemies (Williams 1954), and there are no native Schinus spp. in North America. The lack of native close relatives should minimize the risk of damage to non-target plants from introduced biological control agents (Pemberton 2000). [...]


Sign in / Sign up

Export Citation Format

Share Document