Entomologia Generalis (2017) 36, 219-229

Robson José da Silva, Ivan Carlos Fernandes Martins, João De Conte Carvalho de Alencar, Karen Pereira da Silva, Francisco Jorge Cividanes, Rogério Teixeira Duarte, Lucas Trevisoli Agostini and Ricardo Antonio Polanczyk (2017)
The effect of the entomopathogenic fungus Lecanicillium longisporum (Petch) Zare and Gams (Hypocreales: Cordycipitacea) on the aphid parasitoid Diaeretiella rapae McIntoch (Hymenoptera: Braconidae, Aphidiinae)
Entomologia Generalis 36 (3), 219-229
Abstract: The effect of the entomopathogenic fungus Lecanicillium longisporum on the parasitoid Diaeretiella rapae was evaluated under laboratory conditions. M. persicae nymphs were first exposed to 1-day-old mated parasitoid females for 24 h and then sprayed at different intervals with a solution of L. longisporum. The aphids were primarily sprayed with a solution of the entomopathogen and then exposed to parasitism at different time intervals. The parameters evaluated were parasitism rate, emergence rate, the period between oviposition until mummification, the period between oviposition until emergence, sex ratio (F1 generation), and longevity of F1 generation females. Parasitism was reduced from 66.47 to 17.75% from previous spraying of the entomopathogen on M. persicae. Parasitoid emergence was affected in treatments consisting of spraying L. longisporum immediately (0 h) after or before parasitism. Decreases in the longevity of adult females from the D. rapae F1 generation were related to the presence of the entomopathogenic fungus. The results indicate that there are two biological control agents that can be used in IPM systems against M. persicae, but this relationship requires some caution in order to avoid antagonistic interactions in the field.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Ricardo Antonio Polanczyk, Rogerio Teixeira Duarte

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Myzus persicae
Diaeretiella rapae (parasitoid)	Myzus persicae
Akanthomyces dipterigenus (entomopathogen)