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Number of Trichogramma pretiosum Riley generations in Tuta absoluta Meyrick, related to thermal requirements Estimativa do numero de geracoes de Trichogramma pretiosum Riley na traca do tomateiro Tuta absoluta Meyrick, com base nas exigencias termicas



Number of Trichogramma pretiosum Riley generations in Tuta absoluta Meyrick, related to thermal requirements Estimativa do numero de geracoes de Trichogramma pretiosum Riley na traca do tomateiro Tuta absoluta Meyrick, com base nas exigencias termicas



Anais da Sociedade Entomologica do Brasil. Marco; 271: 109-115



A study was carried out in the laboratory to determine the number of generations of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) parasitizing Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) eggs, considering averages of air temperatures for 24 seasons in Alegre, ES. The lower threshold temperature and thermal constant were 13.0 degreeC and 131 degree-days, respectively. The average number of generations of T. pretiosum estimated for each tomato cycle (90 days) was 7.7 generations, ranging from 9.2 in the summer to 6.0 in the winter.

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Accession: 038478087

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