The impact of weed management regimes in glyphosate resistant soybean was assessed at two Missouri locations to determine how weed removal and weed species composition influence pest and beneficial arthropod populations. Surface and foliage dwelling arthropods were monitored season long using pitfall trap and sweep net sampling. Preliminary analysis suggests that weed management has significant impact to surface dwelling arthropod groups. Treatments that had longer weed presence supported higher arthropod numbers. Continued monitoring is needed to better understand arthropod-weed interactions, because weed management systems that allow prolonged weed presence may provide desirable habitats for important pests.