Difference between revisions of "Planta Daninha (2008) 26, 611-617"
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|External link=http://dx.doi.org/10.1590/S0100-83582008000300017 | |External link=http://dx.doi.org/10.1590/S0100-83582008000300017 | ||
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|Publication abstract=The selectivity of eight commercial herbicide products with glyphosate formulations (Roundup<sup>®</sup>, Roundup<sup>®</sup> WG, Roundup<sup>®</sup> Transorb, Polaris<sup>®</sup>, Gliz<sup>®</sup> 480 CS, Glifosato Nortox<sup>®</sup>, Glifosato 480 Agripec<sup>®</sup> and Zapp<sup>®</sup> Qi) registered in Brazil, was assessed in relation to the immature stages of the egg-parasitoid ''Trichogramma pretiosum'', as well as to their effects on the emerged adults, under laboratory conditions (temperature 25±1 °C, relative humidity 70±10%; photophase 14 hours and brightness 500 lux). The bioassays consisted of herbicide spray at the concentration of 14.4 mg L<sup>-1</sup> of equivalent gliphosate acid on eggs of ''Anagasta kuehniella'' containing the immature stage egg-larva, pre-pupa and pupa of ''T. pretiosum''. Reductions observed in adult emergence, compared to the control, were used to measure the effects of the treatments. Eggs from the host ''A. kuehniella'' were presented to the adults of the parasitoids emerged from the sprayed pupae, with the parasitism of ''T. pretiosum'' being evaluated in each treatment compared to the control. No significant harmful effect was observed for any of the herbicides assessed when sprayed at the different immature stages of development of ''T. pretiosum'', in agreement with IOBC. The parasitism of the adults emerged from eggs sprayed at the pupa stage was not affected either. | |Publication abstract=The selectivity of eight commercial herbicide products with glyphosate formulations (Roundup<sup>®</sup>, Roundup<sup>®</sup> WG, Roundup<sup>®</sup> Transorb, Polaris<sup>®</sup>, Gliz<sup>®</sup> 480 CS, Glifosato Nortox<sup>®</sup>, Glifosato 480 Agripec<sup>®</sup> and Zapp<sup>®</sup> Qi) registered in Brazil, was assessed in relation to the immature stages of the egg-parasitoid ''Trichogramma pretiosum'', as well as to their effects on the emerged adults, under laboratory conditions (temperature 25±1 °C, relative humidity 70±10%; photophase 14 hours and brightness 500 lux). The bioassays consisted of herbicide spray at the concentration of 14.4 mg L<sup>-1</sup> of equivalent gliphosate acid on eggs of ''Anagasta kuehniella'' containing the immature stage egg-larva, pre-pupa and pupa of ''T. pretiosum''. Reductions observed in adult emergence, compared to the control, were used to measure the effects of the treatments. Eggs from the host ''A. kuehniella'' were presented to the adults of the parasitoids emerged from the sprayed pupae, with the parasitism of ''T. pretiosum'' being evaluated in each treatment compared to the control. No significant harmful effect was observed for any of the herbicides assessed when sprayed at the different immature stages of development of ''T. pretiosum'', in agreement with IOBC. The parasitism of the adults emerged from eggs sprayed at the pupa stage was not affected either. | ||
|AbstractCC=Yes | |AbstractCC=Yes | ||
Latest revision as of 16:37, 4 September 2016
S.D. Nörnberg, A.D. Grützmacher, F.P. Giolo, G.J.E. Júnior, C.A.B. Lima and D.D. Grützmacher (2008)
Seletividade de formulações de glyphosate aplicado nos estádios imaturos de Trichogramma pretiosum
[Selectivity of glyphosate formulations applied on immature stages of Trichogramma pretiosum]
Planta Daninha 26 (3), 611-617
Abstract: The selectivity of eight commercial herbicide products with glyphosate formulations (Roundup®, Roundup® WG, Roundup® Transorb, Polaris®, Gliz® 480 CS, Glifosato Nortox®, Glifosato 480 Agripec® and Zapp® Qi) registered in Brazil, was assessed in relation to the immature stages of the egg-parasitoid Trichogramma pretiosum, as well as to their effects on the emerged adults, under laboratory conditions (temperature 25±1 °C, relative humidity 70±10%; photophase 14 hours and brightness 500 lux). The bioassays consisted of herbicide spray at the concentration of 14.4 mg L-1 of equivalent gliphosate acid on eggs of Anagasta kuehniella containing the immature stage egg-larva, pre-pupa and pupa of T. pretiosum. Reductions observed in adult emergence, compared to the control, were used to measure the effects of the treatments. Eggs from the host A. kuehniella were presented to the adults of the parasitoids emerged from the sprayed pupae, with the parasitism of T. pretiosum being evaluated in each treatment compared to the control. No significant harmful effect was observed for any of the herbicides assessed when sprayed at the different immature stages of development of T. pretiosum, in agreement with IOBC. The parasitism of the adults emerged from eggs sprayed at the pupa stage was not affected either.
(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): Anderson Dionei Grützmacher
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Trichogramma pretiosum (parasitoid) |
