Revista Brasileira de Entomologia (2009) 53, 679-683

Aline Nondillo, Luiza Rodrigues Redaelli, Silvia Marisa Jesien Pinent and Marcos Botton (2009)
Biologia e tabela de vida de fertilidade de Frankliniella occidentalis (Pergande) (Thysanoptera, Thripidae) em morangueiro
[Biology and fertility life table of Frankliniella occidentalis (Pergande) (Thysanoptera, Thripidae) in strawberry]
Revista Brasileira de Entomologia 53 (4), 679-683
Abstract: This work aimed to study biological aspects of Frankliniella occidentalis (Pergande) (Thysanoptera, Thripidae) considering that almost nothing is known about the thrips fauna associated with strawberry crop. Newly hatched larvae were individualized into Petri dishes, containing a flower or a foliole of strawberry and kept in chambers (25 ± 1 °C, 60 ± 10% RH; 12 hours photophase). Daily observations were conducted until the insect death. The average time of the biological cycle (larva-adult) and viability did not differ between the insects maintained in flowers (8.49 ± 0.18 and 68.52%) and folioles (8.85 ± 0.15 and 75.47%). The daily and total average fecundity were higher when flowers were provided as food (7.4 ± 0.69 and 70.0 ± 9.18 eggs/femeale respectively) compared with folioles (2.4 ± 0.35 and 8.5 ± 1,13 eggs/femeale respectively). The average time, in days, of the embryonic period was significantly different for the insects reared in flowers (3.7 ± 0.03) than in folioles (4.4 ± 0.09). The viability of eggs deposited in flowers and folioles was 65.5 ± 0.01 and 74.3 ± 0.03% respectively. Based upon the fertility life table, the performance of F. occidentalis reared in flowers was better when compared to folioles. A generation (egg-adult) occurs each 20.92 days at 25 °C.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article
Database assignments for author(s): Luiza R. Redaelli, Marcos Botton

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Frankliniella occidentalis	Strawberry (Fragaria)