Revista Colombiana de Entomología (1998) 24, 149-155

Aristizabal A. Luis F., Alex E. Bustillo P., Jaime Orozco H. and Bernardo Cháves C. (1998)
Efecto del parasitoide Cephalonomia stephanoderis (Hymenoptera: Bethylidae) sobre las poblaciones de Hypothenemus hampei (Coleoptera: Scolytidae) durante y después de la cosecha
[Effect of the parasitoid Cephalonomia stephanoderis (Hymenoptera: Bethylidae) on Hypothenemus hampei (Coleoptera: Scolytidae) during and after harvest]
Revista Colombiana de Entomología 24 (3-4), 149-155
Abstract: In order to evaluate the effect of the parasitoid C. stephanoderis on the populations of H. hampei during and after the main harvests and crossbeam of coffee and to facilitate the implementation of the parasitoids in the integrated pest management program, the present investigation was made in Colombian variety of coffee crops located at Experimental Substations: Naranjal in Chinchina, La Catalina in Pereira and the farm El Porvenir in Armenia and Dinamarca in Calarca. Four treatments were established according to the time of release: treatment 1 (control, without liberation); treatment 2 (liberation before the harvest), treatment 3 (liberation after the harvest) and treatment 4, combination of both releases (before and after the harvest).
The results demonstrated the presence of C. stephanoderis in all the crops in which it was released. During the first five months, parasitisms between 3 - 28 %, were observed, months in which the levels of infestation of H. hampei remained low and stable with respect to the control. A significant reduction of the infestation levels of H. hampei of the average number of fruits infested per tree and of the biological states of the pest in the crops where the parasitoid was released, with respect to the control was observed. The best result was observed, when the combination of both releases was made (before and after harvest). Therefore the releases of C. stephanoderis within an integrated pest management program, should be made in the interharvest periods, that is to say, before and after the main harvest and crossbeam. It was observed that the releases of C. stephanoderis plus the opportune harvestings of mature fruits help to regulate the populations of H. hampei, maintaining levels of infestation lower than 5% during a harvest period.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Spanish)

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation
inundative/inoculative release

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Hypothenemus hampei	Coffee (Coffea)	Colombia
Cephalonomia stephanoderis (parasitoid)	Hypothenemus hampei	Coffee (Coffea)	Colombia