Anais da Sociedade Entomológica do Brasil (1998) 27, 387-393

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C.H. Santos and A.R. Panizzi (1998)
Danos Qualitativos Causados por Neomegalotomus parvus (Westwood) em Sementes de Soja
[Qualitative damage caused by Neomegalotomus parvus (Westwood) to soyabean seeds]
Anais da Sociedade Entomológica do Brasil 27 (3), 387-393
Abstract: In the greenhouse, individual plants of soybean [Glycine max (L.) Merrill] were artificially infested with 1, 2, 4, 8 and 16 adults of Neomegalotomus parvus (Westwood), at the end of the pod-filling stage (R6) during 20 days to evaluate the effect of adult feeding on seed quality using the tetrazolium test. Results indicated that as the number of bugs/plant increased, the total damage to seeds also increased, reducing the percentage of seed vigor and seed viability. With 4 bugs/plant, 8.0 % of the seeds lost their viability; 8 and 16 bugs/plant reduced seed viability in 13.8 % and 22.0 %, respectively, with 16 bugs/plant reducing the seed vigor up to 40.0 %.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): Antônio R. Panizzi

Research topic(s) for pests/diseases/weeds:
damage/losses/economics


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Neomegalotomus simplex Soybean (Glycine max)