Journal
AFRICAN ENTOMOLOGY
Volume 22, Issue 4, Pages 801-809Publisher
ENTOMOLOGICAL SOC SOUTHERN AFRICA
DOI: 10.4001/003.022.0410
Keywords
biological control; inundative release; tomato leaf miner; Egypt; indigenous parasitoid; invasive species
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Funding
- Sector of High Education and Research of the Cairo University
- French Ministry of Agriculture [10063]
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In this study we compared the efficiency of two Trichogramma (Hymenoptera: Trichogrammatidae) species, the indigenous T. euproctidis Girault and the cosmopolitan T. achaeae Nagaraja & Nagarkatti, for the biological control of the tomato leaf miner, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). Three release doses (25, 50 and 75 parasitoids/m(2)) for each species were tested in a two-year experiment (growing seasons: 2011/2012 and 2012/2013), in protected tomato cultivations in Egypt. The results show that both Trichogramma species were significantly efficient, especially at higher doses, in keepingdown T. absoluta mines during both experimentation years. Although no significant differences were found between the efficiency of the two species, the inclusion into Egyptian integrated and biological T. absoluta management programmes of the autochthonous species, T. euproctidis, might be preferred for its adaptation to Egyptian environmental conditions and for its expected lower non-target effect on the local fauna.
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