Leaf-Waste Pellets as a Herbicide Carrier for Container-Grown Ornamental Plants

An organic herbicide carrier could help reduce misapplication and environmental pollution associated with spray application of herbicides. Pellets prepared from landscape leaves that were dried, ground, and pelletized were evaluated as a preemergence herbicide carrier for container-grown ornamental...

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Bibliographic Details
Published in:Weed technology 2006-10, Vol.20 (4), p.942-949
Main Authors: Samtani, J.B, Kling, G.J, Williams, D.J
Format: Article
Language:English
Subjects:
application rate
Biological and medical sciences
Biomass
broadleaf weeds
Chemical control
Chrysanthemum morifolium
container-grown plants
Euonymus fortunei
extrusion
Fundamental and applied biological sciences. Psychology
grass weeds
herbicide carriers
Herbicides
isoxaben
leaves
Letter carriers
Mulches
nursery crops
Ornamental plants
Parasitic plants. Weeds
pendimethalin
pesticide application
Phytopathology. Animal pests. Plant and forest protection
Phytotoxicity
plant byproducts
Plants
Portulaca oleracea
preemergent weed control
prodiamine
Senecio vulgaris
Setaria faberi
Spiraea
Spiraea japonica
Test ranges
waste utilization
Water treatment
Weed control
Weeds
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Summary:An organic herbicide carrier could help reduce misapplication and environmental pollution associated with spray application of herbicides. Pellets prepared from landscape leaves that were dried, ground, and pelletized were evaluated as a preemergence herbicide carrier for container-grown ornamental plants. Isoxaben, pendimethalin, and prodiamine at rates of 1.12, 2.25, and 2.25 kg ai/ha, respectively, with either water or landscape leaf-waste pellets as a carrier were applied to chrysanthemum 'Lisa', spirea 'Neon Flash', and wintercreeper 'Coloratus'. Common groundsel, common purslane, and giant foxtail were seeded following herbicide application. Leaf-waste pellets as a carrier produced equivalent efficacy and phytotoxicity ratings to conventional spray application of pendimethalin and prodiamine on both chrysanthemum and wintercreeper. The leaf-waste pellets were not an effective carrier for the application of isoxaben alone. The pellets had inconsistent effects on spirea phytotoxicity and growth.
ISSN:0890-037X
1550-2740
DOI:10.1614/wt-05-055.1