@misc{10481/74770,
year = {2022},
month = {4},
url = {http://hdl.handle.net/10481/74770},
abstract = {Knowledge of the insect densities during crop development is necessary for adopting
appropriate measures for the control of insect pests and minimizing yield losses. Within integrated
pest management programs, crop rotation has been carried out in recent years, but this current trend
delays the planting period for Bt maize. The small amount of available information regarding the
influence of sowing Bt maize early or late on the seasonal abundance of herbivores prompted us to
study these aspects in two current common planting periods in northeastern Spain in 52 maize fields
over three consecutive years. We sampled the fields planted on different dates with sticky yellow traps.
Our results show that only the abundances of herbivore thrips, other than Frankliniella occidentalis,
and Syrphidae were significantly different between the two planting periods. Moreover, when we
performed yearly analyses, we found significant effects of the planting period on Coccinellidae and
Chrysopidae in 2015 and on Aeolothrips sp. in 2016 and 2017. In most of the taxa, the abundance
peaks in earlier growth stages, which is related to pollination (before or during). Only the abundances
of Stethorus punctillum and Syrphidae peak later in the season. In addition, F. occidentalis, aphids,
Syrphidae, and Coccinellidae registered higher abundance in fields sown in the late planting period.
These results highlight the effects of sowing in different planting periods on insect dynamics in Bt
maize and can be used to identify the abundance of certain pests and natural enemies in specific
phenological stages of maize, which may allow producers to adopt better-integrated management
and thus avoid reaching the level of economic damage.},
organization = {Spanish Government	AGL2014-53970-C2-1-R	
AGL2017-84127-R},
organization = {Ministry of Science, Innovation, and Universities	BES-2015-072378},
publisher = {MDPI},
keywords = {Crop-rotation programs},
keywords = {Integrated pest management},
keywords = {Crop phenology},
keywords = {Planting periods},
title = {The Influence of Planting Periods on Herbivore and Natural Enemy Abundance on Yellow Sticky Traps in Bt Maize Fields},
doi = {10.3390/insects13040388},
author = {Clemente Orta, Gemma and Álvarez, Hugo Alejandro},
}