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Weed Control Using an Enclosed Thermal Heating Apparatus

  • Jared A. Hoyle (a1), J. Scott McElroy (a1) and J. Jack Rose (a2)

Weed control by heat or flaming typically uses flames to burn small weeds, directed away from desired crops. This research studied an enclosed flaming system for weed control before turfgrass establishment. Field research trials were conducted to explore the efficacy of a PL-8750 flame sanitizer at two application timings. Treatments included various application methods of PL-8750 flame sanitizer and common thermal and chemical weed control methods. Data were weed control relative to the control treatment. Species evaluated included carpetweed, Virginia buttonweed, spotted spurge, large crabgrass, goosegrass, old world diamond-flower, cocks-comb kyllinga, and yellow nutsedge. Turfgrass establishment was not successful in summer but was successful in fall. Fall-application timing trials resulted in > 60% tall fescue establishment at 6 wk after seeding (WAS) for all treatments. Summer-application timing trials resulted in unacceptable turfgrass establishment (≤ 18%) for all evaluated turfgrass species at 6 WAS. Broadleaf and grassy weeds were better controlled compared with sedge weeds. Overall, solarization; covered, emerged-weed flaming; and double applications of covered, emerged-weed flaming were the most successful treatments. Solarization controlled carpetweed, Virginia buttonweed, spotted spurge, large crabgrass, and goosegrass > 80% at 6 WAS. Weed control across thermal treatments were equal to or greater than the comparison chemical treatment (dazomet at 389 kg ha−1). Results indicate thermal weed control has potential for reducing weed populations before turfgrass establishment.

El control de malezas por calor o llamas usa típicamente llamas para quemar malezas pequeñas al tiempo que se evita el cultivo deseado. Esta investigación estudió un sistema cubierto de llamas para el control de malezas antes del establecimiento del césped. Se realizaron estudios de campo para explorar la eficacia de un desinfectante de llama PL-8750 en dos momentos de aplicación. Los tratamientos incluyeron varios métodos de aplicación del desinfectante de llama PL-8750 y métodos comunes de control de malezas térmico y químico. Los datos fueron control de malezas relativo al tratamiento testigo. Las especies evaluadas incluyeron Mollugo verticillata, Diodia virginiana, Chamaesyce maculata, Digitaria sanguinalis, Eleusine indica, Oldenlandia corymbosa, Kyllinga squamulata y Cyperus esculentus. El establecimiento del césped no fue exitoso en el verano, pero sí lo fue en el otoño. Los estudios de momento de aplicación en el otoño resultaron en un establecimiento >60% de Lolium arundinaceum a 6 semanas después de la siembra (WAS) para todos los tratamientos. Los estudios de momento de aplicación en el verano resultaron en un establecimiento inaceptable del césped (≤18%) para todas las especies de césped evaluadas a 6 WAS. Las malezas de hoja ancha y zacates fueron controladas mejor en comparación con las malezas ciperáceas. En general, solarización; suelo cubierto, control con llamas en malezas emergidas; y aplicaciones dobles de suelo cubierto, control con llamas en malezas emergidas fueron los tratamientos más exitosos. La solarización controló M. verticillata, D. virginiana, C. maculata, D. sanguinalis y E. indica >80% a 6 WAS. El control de malezas térmico fue igual o mayor en comparación con el tratamiento químico (cazonete a 389 kg ha−1). Los resultados indican que el control térmico de malezas tiene potencial para reducir poblaciones de malezas antes del establecimiento del césped.

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B. E. Abu-Irmaileh 1991. Weed control in squash and tomato fields by soil solarization in the Jordan Valley. Weed Res. 31 :125133.

J. Ascard 1994. Dose–response models for flame weeding in relation to plant size and density. Weed Res. 34 :377385.

J. Ascard 1997. Flame weeding: effects of fuel pressure and tandem burners. Weed Res. 37 :7786.

J. Ascard 1998. Comparison of flaming and infrared radiation techniques for thermal weed control. Weed Res. 38 :6976.

P. Barberi , A. C. Moonen , A. Peruzzi , M. Fontanelli , and M. Raffaelli 2009. Weed suppression by soil steaming in combination with activating compounds. Weed Res. 49 :5566.

S. Benvenuti , M. Macchia , and S. Miele 2001. Quantitative analysis of emergence of seedlings from buried weed seeds with increasing planting depth. Weed Sci. 49 :528535.

W. Bond and A. C. Grundy 2001. Non-chemical weed management in organic farming systems. Weed Res. 41 :383405.

S. A. Bowers and R. J. Hanks 1962. Specific heat capacity of soils and minerals as determined with a radiation calorimeter. Soil Sci. 94 :392396.

J. J. Cisneros and B. H. Zandstra 2008. Flame weeding effects on several weed species. Weed Technol. 22 :290295.

R. M. Dahlquist , T. S. Prather , and J. J. Stapleton 2007. Time and temperature requirements for weed seed thermal death. Weed Sci. 55 :619625.

M. F. Diprose , F. A. Benson , and A. J. Willis 1984. The effect of externally applied electrostatic fields, microwave radiation and electric currents on plants and other organisms with special reference to weed control. Bot. Rev. 50 :171223.

R. J. Froud-Williams , R. J. Chancellor , and D. S. H. Drennan 1984. The effects of seed burial and soil disturbance on emergence and survival of arable weeds in relation to minimal cultivation. J. Appl. Ecol. 21 :629641.

P. E. Hatcher and B. Melander 2003. Combining physical, cultural and biological methods: prospects for integrated non-chemical weed management strategies. Weed Res. 43 :303322.

T. Heisel , J. Schou , C. Andreasen , and S. Christensen 2002. Using laser to measure stem thickness and cut weed stems. Weed Res. 42 :242248.

C. Lague , J. Gill , and G. Peloquin 2001. Thermal control in plant protection. Pages 3546 in C. Vincet , B. Panneton , and F. Fleurant-Lessard , eds. Physical Control Methods in Plant Protection. Berlin, Germany : Springer-Verlag.

B. Melander and G. Rasmussen 2001. Effects of cultural methods and physical weed control on intrarow weed numbers, manual weeding and marketable yield in direct-sown leek and bulb onion. Weed Res. 41 :491508.

T. E. Ochsner , R. Horton , and T. Ren 2001. Simultaneous water content, air-filled porosity, and bulk density measurements with thermal-time domain reflectometry. Soil Sci. Am. J. 65 :16181622.

S. Parish 1990. A review of non-chemical weed control techniques. Biol. Agric. Hortic. 7 :117137.

R. E. Peachey , J. N. Pinkerton , K. L. Ivors , M. L. Miller , and L. W. Moore 2001. Effect of soil solarization, cover crops, and metham on field emergence and survival of buried annual bluegrass (Poa annua) seeds. Weed Technol. 15 :8188.

Y. Pelletier , C. D. McLeod , and G. Bernard 1995. Description of sub-lethal injuries caused to Colorado potato beetle by propane flamer treatment. J. Econ. Entomol. 88 :12031205.

E. C. Sivesind , M. L. Leblac , D. C. Cloutier , P. Seguin , and K. A. Stewart 2009. Weed response to flame weeding at different development stages. Weed Technol. 23 :438443.

W. O. Smith 1942. The thermal conductivity of dry soil. Soil Sci. 53 :435450.

J. J. Stapleton and J. E. DeVay 1986. Soil solarization: a non-chemical approach for management of plant pathogens and pests. Crop Prot. 5 :190198.

J. B. Unruh , B. J. Brecke , J. A. Dusky , and J. S. Godbehere 2002. Fumigant alternatives for methyl bromide prior to turfgrass establishment. Weed Technol. 16 :379387.

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Weed Technology
  • ISSN: 0890-037X
  • EISSN: 1550-2740
  • URL: /core/journals/weed-technology
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