Can Row Spacing Influence Arthropod Communities in Soybean? Implications for Early and Late Planting

Buchanan, Amanda L.; Zobel, Emily; Hinds, Jermaine; Rosario-Lebron, Armando; Hooks, Cerruti R. R.

doi:10.1093/ee/nvv060

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…As a consequence, we opted to maintain this spacing at Upper Marlboro the following year. Still, it was not believed that this would impact the outcome, as earlier studies conducted in Maryland showed no impact of row spacing on the arthropod fauna in early-or late-planted soybean [31]. A late-season herbicide application of Ignite ® (glufosinate, Bayer Crop Sciences; DeWitt, AR, USA) was applied at 511 mL ha −1 on 11 July 2013 and 2 July 2014 to all plots at the Beltsville location as a "rescue" herbicide treatment primarily for large crabgrass (Digitaria sanguinalis).…”

Section: Experimental Site Layout and Treatmentsmentioning

confidence: 99%

The Effect of Barley Cover Crop Residue and Herbicide Management on the Foliar Arthropod Community in No-Till Soybeans

Rosario-Lebron¹

2018

Agronomy

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Cover cropping has long been used as a method of reducing soil erosion, increasing soil quality, and suppressing weeds. However, the effects of cover crops in local farming systems are varied and can be affected by timing and method of termination. Field experiments were conducted at two sites in Maryland, USA during the 2013 and 2014 growing seasons to examine how varying the date and method of terminating a barley (Hordeum vulgare) cover crop affects the arthropod communities in succeeding no-till soybean (Glycine max). Experimental treatments included early-kill with pre-and post-emergent herbicides (EK), late-kill with pre-and post-emergent herbicides (LK), late-kill with a flail mower and pre-emergent herbicide (FM), and a fallow/bare-ground check with pre-and post-emergent herbicides (BG). Terminating barley late, just prior to soybean planting, resulted in significantly greater biomass accumulation in LK and FM than EK. However, method and timing of termination had no effect on the community of pest and beneficial arthropods in the soybean canopy. Results from this experiment suggest that terminating the cover crop early or late (just prior to crop planting) or using a mower or post-emergent herbicide will result in a similar community of arthropods within the soybean canopy.

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Section: Experimental Site Layout and Treatmentsmentioning

confidence: 99%

The Effect of Barley Cover Crop Residue and Herbicide Management on the Foliar Arthropod Community in No-Till Soybeans

Rosario-Lebron¹

2018

Agronomy

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“…Very little is known about the effect of different row spacing on the occurrence of aphids and their predators. A study showed that variable soybean row spacing did not affect abundance of predatory insects, including hoverflies and lady beetles [37], while another study on this plant showed greater density of predators in the high density plantings [38]. In potato crop, average daily abundance of lady beetles was similar irrespective of the different spacing used [39].…”

Section: Mass Of Leavesmentioning

confidence: 95%

Effect of Sinapis alba L. as an Insectary Plant on the Occurrence of Aphis fabae Scop., Coccinellidae and Syrphidae in Broad Bean

Gospodarek

2021

Agronomy

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Introducing insectary plants along with principal crops is an effective way to increase the biological diversity of beneficial insects and improve the stability of ecological equilibrium in agrocenoses and could be an alternative to chemical plant protection, particularly in organic farming. The goal of this study was to determine the effect of white mustard as a companion plant in broad bean cultivation on the occurrence of Aphis fabae Scop., Syrphidae, and Coccinellidae. The study also aimed at finding the optimum row separation of broad bean plants. It also evaluated the effectiveness of the thinning of mustard in a specific time to eliminate excessive competition with the main crop. The results showed that white mustard contributed to visible suppression of A. fabae abundance on broad bean (to the level similar as with the use of chemical protection). S. alba contributed to an increased abundance of hoverflies and lady beetles on broad bean despite the relatively low abundance of their prey, i.e., aphids. Mustard thinning positively affected abundance of larvae and adults of lady beetles as well as improved predator-prey ratio for hoverfly larvae and adult lady beetles. The most appropriate distance between broad bean rows when white mustard was introduced was 65 cm, with the concomitant conduct of mustard thinning when the broad bean plants reached flower bud formation. White mustard can be recommended as an element increasing the role of natural enemies of aphids in mixed crops, however, its strong growth should be taken into account and the plant density should be properly adjusted to avoid excessive competition with main plant.

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Can Row Spacing Influence Arthropod Communities in Soybean? Implications for Early and Late Planting

Cited by 2 publications

References 13 publications

The Effect of Barley Cover Crop Residue and Herbicide Management on the Foliar Arthropod Community in No-Till Soybeans

The Effect of Barley Cover Crop Residue and Herbicide Management on the Foliar Arthropod Community in No-Till Soybeans

Effect of Sinapis alba L. as an Insectary Plant on the Occurrence of Aphis fabae Scop., Coccinellidae and Syrphidae in Broad Bean

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